Insights on non-perturbative aspects of TMDs from models (2009)
Avakian, H., Efremov, A. V., Schweitzer, P., Teryaev, O. V., Yuan, F., Zavada, P.
Transverse momentum dependent parton distribution functions are a key ingredient in the description of spin and azimuthal asymmetries in deep-inelastic scattering processes. Recent results from...
Avakian, H., Efremov, A. V., Schweitzer, P., Metz, A., Teckentrup, T.
The leading twist transverse momentum dependent parton distribution functions h_{1L}^{\perp} and h_{1T}^\perp, which is sometimes called "pretzelosity," are studied. For h_{1L}^{\perp} we consider a...
Measurement of unpolarized semi-inclusive pi+ electroproduction off the proton (2008)
Osipenko, CLAS Collaboration: M., Ripani, M., Ricco, G., Avakian, H., De Vita, R.
Semi-inclusive pi+ electroproduction on protons has been measured with the CLAS detector at Jefferson Lab. The measurement was performed on a liquid-hydrogen target using a 5.75 GeV electron beam....
Pretzelosity distribution function (2008)
Avakian, H., Efremov, A. V., Schweitzer, P., Yuan, F.
The 'pretzelosity' distribution is discussed. Theoretical properties, model results, and perspectives to access experimental information on this leading twist, transverse momentum dependent parton...
Avakian, H., Efremov, A. V., Schweitzer, P., Yuan, F.
The leading twist transverse momentum dependent parton distribution function h_1T^perp, which is sometimes called ``pretzelosity,'' is studied. We review the theoretical properties of this function,...
The HERMES Spectrometer (2007)
K. Ackerstaff, A. Airapetian, N. Akopov, H. Avakian, V. Andreev, ...
The HERMES experiment is collecting data on inclusive and semi-inclusive deep inelastic scattering of polarised positrons from polarised targets of H, D, and 3 He. These data give information on the...
LNF-INFN, C.P.13, Via E. Fermi 40 I-00044 Frascati (Roma), Italy (2007)
Van Den, H. Avakian, N. Bianchi, G. P. Capitani, E. De Sanctis, A. Fantoni, ...
A description of the HERMES electromagnetic calorimeter is given. The measured characteristics on the test beams and after one year data taking are presented. 1 Introduction: the HERMES experiment...
Are there approximate relations among transverse momentum dependent distribution functions? (2007)
Avakian, H., Efremov, A. V., Goeke, K., Metz, A., Schweitzer, P., Teckentrup, T.
Certain exact relations among transverse momentum dependent parton distribution functions due to QCD equations of motion turn into approximate ones upon the neglect of pure twist-3 terms. On the...
Electron Scattering From High-Momentum Neutrons in Deuterium (2007)
Klimenko, A.V., Kuhn, S.E., Butuceanu, C., Egiyan, K.S., Griffioen, K.A., Adams, G., ...
We report results from an experiment measuring the semi-inclusive reaction $d(e,e'p_s)$ where the proton $p_s$ is moving at a large angle relative to the momentum transfer. If we assume that the...
Electron Scattering From High-Momentum Neutrons in Deuterium (2007)
Klimenko, A.V., Kuhn, S.E., Butuceanu, C., Egiyan, K.S., Griffioen, K.A., Adams, G., ...
We report results from an experiment measuring the semi-inclusive reaction $d(e,e'p_s)$ where the proton $p_s$ is moving at a large angle relative to the momentum transfer. If we assume that the...
Electron Scattering From High-Momentum Neutrons in Deuterium (2007)
Klimenko, A.V., Kuhn, S.E., Butuceanu, C., Egiyan, K.S., Griffioen, K.A., Adams, G., ...
We report results from an experiment measuring the semi-inclusive reaction $d(e,e'p_s)$ where the proton $p_s$ is moving at a large angle relative to the momentum transfer. If we assume that the...
Ambrozewicz, P., Carman, D. S., Feuerbach, R. J., Mestayer, M. D., Raue, B. A., Schumacher, R. A., ...
We report measurements of the exclusive electroproduction of $K^+\Lambda$ and $K^+\Sigma^0$ final states from a proton target using the CLAS detector at the Thomas Jefferson National Accelerator...
Quark-Hadron Duality in Spin Structure Functions $g_1^p$ and $g_1^d$ (2007)
Bosted, P.E., V. Dharmawardane, K., E. Dodge, G., A. Forest, T., E. Kuhn, S., Prok, Y., ...
New measurements of the spin structure functions of the proton and deuteron g1p(x,Q2) and g1d(x,Q2) in the nucleon resonance region are compared with extrapolations of target-mass-corrected...
First Measurement of Beam-Recoil Observables $C_x$ and $C_z$ in Hyperon Photoproduction (2007)
Bradford, R.K., Schumacher, R.A., Adams, G., Amaryan, M.J., Ambrozewicz, P., Anciant, E., ...
Spin transfer from circularly polarized real photons to recoiling hyperons has been measured for the reactions $\vec\gamma + p \to K^+ + \vec\Lambda$ and $\vec\gamma + p \to K^+ + \vec\Sigma^0$. The...
Transversity and Transverse Spin in Nucleon Structure through SIDIS at Jefferson Lab (2007)
Afanasev, A., Anselmino, M., Avakian, H., Cates, G., Chudakov, E., ...
The JLab 12 GeV upgrade with a proposed solenoid detector and the CLAS12 detector can provide the granularity and three-dimensional kinematic coverage in longitudinal and transverse momentum, $0.1\le...
First measurement of coherent $\phi$-meson photoproduction on deuteron at low energies (2007)
Mibe, T., Gao, H., Hicks, K., Kramer, K., Stepanyan, S., Tedeschi, D.J., ...
The cross section and decay angular distributions for the coherent \phi meson photoproduction on the deuteron have been measured for the first time up to a squared four-momentum transfer t...
$\eta$' Photoproduction on the Proton for Photon Energies from 1.527 to 2.227 GeV (2007)
Dugger, M., P. Ball, J., Collins, P., Pasyuk, E., G. Ritchie, B., Adams, G., ...
Differential cross sections for the reaction gamma p -> eta-prime p have been measured with the CLAS spectrometer and a tagged photon beam with energies from 1.527 to 2.227 GeV. The results reported...
$\eta$' Photoproduction on the Proton for Photon Energies from 1.527 to 2.227 GeV (2007)
Dugger, M., P. Ball, J., Collins, P., Pasyuk, E., G. Ritchie, B., Adams, G., ...
Differential cross sections for the reaction gamma p -> eta-prime p have been measured with the CLAS spectrometer and a tagged photon beam with energies from 1.527 to 2.227 GeV. The results reported...
$\eta$' Photoproduction on the Proton for Photon Energies from 1.527 to 2.227 GeV (2007)
Dugger, M., P. Ball, J., Collins, P., Pasyuk, E., G. Ritchie, B., Adams, G., ...
Differential cross sections for the reaction gamma p -> eta-prime p have been measured with the CLAS spectrometer and a tagged photon beam with energies from 1.527 to 2.227 GeV. The results reported...
Deeply virtual and exclusive electroproduction of $\omega$-mesons (2007)
Morand, L., Doré, D., Garçon, M., Guidal, M., Morrow, S., ...
The exclusive $\omega$ electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q$^2$) with the...
Egiyan, H., Aznauryan, I.G., Burkert, V.D., Griffioen, K.A., Joo, K., Minehart, R., ...
The ep-->e'pi+n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV2
Deeply virtual and exclusive electroproduction of $\omega$-mesons (2007)
Morand, L., Doré, D., Garçon, M., Guidal, M., Morrow, S., ...
The exclusive $\omega$ electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q$^2$) with the...
Egiyan, H., Aznauryan, I.G., Burkert, V.D., Griffioen, K.A., Joo, K., Minehart, R., ...
The ep-->e'pi+n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV2
Deeply virtual and exclusive electroproduction of $\omega$-mesons (2007)
Morand, L., Doré, D., Garçon, M., Guidal, M., Morrow, S., ...
The exclusive $\omega$ electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q$^2$) with the...
Egiyan, H., Aznauryan, I.G., Burkert, V.D., Griffioen, K.A., Joo, K., Minehart, R., ...
The ep-->e'pi+n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV2
Beam-Spin Asymmetries in the Azimuthal Distribution of Pion Electroproduction. (2007)
A. Airapetian, DESY Forschung Hochenergiephysik, Z. Akopov, M. Amarian, A. Andrus, E.C. Aschenauer, ...
Journal article
Ungaro, M., Stoler, P., Aznauryan, I., Burkert, V. D., Joo, K., Smith, L. C., ...
We report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to explore the evolution from soft non-perturbative physics to hard processes via the Q2 dependence of the...
Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon (2006)
Dharmawardane, K. V., Kuhn, S. E., Bosted, P., Prok, Y., Adams, G., Ambrozewicz, P., ...
We report results for the virtual photon asymmetry $A_1$ on the nucleon from new Jefferson Lab measurements. The experiment, which used the CEBAF Large Acceptance Spectrometer and longitudinally...
De Vita, R., Battaglieri, M., Kubarovsky, V., A. Baltzell, N., Bellis, M., Goett, J., ...
The exclusive reactions $\gamma p \to \bar K^0 K^+ n$ and $\gamma p \to \bar K^0 K^0 p$ have been studied in the photon energy range 1.6--3.8 GeV, searching for evidence of the exotic baryon...
Search for $\Theta^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^+K^-p$ (2006)
Kubarovsky, V., Battaglieri, M., De Vita, R., Goett, J., Guo, L., S. Mutchler, G., ...
The reaction $\gamma p \to pK^+K^-$ was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a $\Theta^{++}$ pentaquark, a narrow...
Photoproduction of $\phi$(1020) mesons on the proton at large momentum transfer (2006)
Anciant, E., Lukashin, K., Smith, E.S., Adams, G.S., Anghinolfi, M., Asavapibhop, B., ...
Osipenko, M., Ricco, G., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ...
Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National...
Measurement of Deeply Virtual Compton Scattering with a Polarized Proton Target (2006)
Chen, S., Avakian, H., Burkert, V., Eugenio, P., Collaboration, The CLAS
The longitudinal target-spin asymmetry A_UL for the exclusive electroproduction of high energy photons was measured for the first time in p(e,e'p\gamma). The data have been accumulated at Jefferson...
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., S. Egiyan, K., Minehart, R., ...
The polarized longitudinal-transverse structure function $\sigma_{LT^\prime}$ measures the interference between real and imaginary amplitudes in pion electroproduction and can be used to probe the...
De Vita, R., Battaglieri, M., Kubarovsky, V., A. Baltzell, N., Bellis, M., Goett, J., ...
The exclusive reactions $\gamma p \to \bar K^0 K^+ n$ and $\gamma p \to \bar K^0 K^0 p$ have been studied in the photon energy range 1.6--3.8 GeV, searching for evidence of the exotic baryon...
Search for $\Theta^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^+K^-p$ (2006)
Kubarovsky, V., Battaglieri, M., De Vita, R., Goett, J., Guo, L., S. Mutchler, G., ...
The reaction $\gamma p \to pK^+K^-$ was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a $\Theta^{++}$ pentaquark, a narrow...
Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon (2006)
Dharmawardane, K. V., Kuhn, S. E., Bosted, P., Prok, Y., Adams, G., Ambrozewicz, P., ...
We report results for the virtual photon asymmetry $A_1$ on the nucleon from new Jefferson Lab measurements. The experiment, which used the CEBAF Large Acceptance Spectrometer and longitudinally...
Ungaro, M., Stoler, P., Aznauryan, I., Burkert, V. D., Joo, K., Smith, L. C., ...
We report a new measurement of the exclusive electroproduction reaction gamma* p -> pi0 p to explore the evolution from soft non-perturbative physics to hard processes via the Q2 dependence of the...
Beam-Helicity Asymmetries in Double-Charged-Pion Photoproduction on the Proton (2005)
Strauch, S., Berman, B.L., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ...
Beam-helicity asymmetries for the two-pion-photoproduction reaction gamma + p --> p pi+ pi- have been studied for the first time in the resonance region for center-of-mass energies between 1.35 GeV...
New results on SIDIS SSA from Jefferson Lab (2005)
Avakian, H., Bosted, P., Burkert, V., Elouadrhiri, L.
We present studies of single-spin and double-spin asymmetries in semi-inclusive electroproduction of pions using the CEBAF 6 GeV polarized electron beam. Kinematic dependences of single and double...
Exclusive photoproduction of the cascade ($\Xi$) hyperons (2005)
Price, J.W., Nefkens, B.M.K., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We report on the first measurement of exclusive $ \Xi^-$(1321) hyperon photoproduction in $\gammap \rightarrow K^+K^+\Xi^-$ for $3.2
Radiative decays of the $\Sigma^0$(1385) and $\Lambda$(1520) hyperons (2005)
Taylor, S., Mutchler, G.S., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
The electromagnetic decays of the Sig0(1385) and Lambda(1520) hyperons were studied in photon-induced reactions gamma p -> K+ Lambda(1116)gamma in the CLAS detector at the Thomas Jefferson National...
Survey of A$_{LT′}$ asymmetries in semi-exclusive electron scattering on $^4$He and$^12$C (2005)
Protopopescu, D., Hersman, F.W., Holtrop, M., Adams, G., Ambrozewicz, P., Anciant, E., ...
Single spin azimuthal asymmetries ALT′ were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarised electrons incident on 4He and 12C targets in the CLAS detector. ALT′...
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigmaLT[prime] has been measured using the p(e-vector,e[prime]pi+)n reaction in the Delta(1232) resonance region at Q2 = 0.40 and 0.65 GeV2....
Beam-Helicity Asymmetries in Double-Charged-Pion Photoproduction on the Proton (2005)
Strauch, S., Berman, B.L., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ...
Beam-helicity asymmetries for the two-pion-photoproduction reaction gamma + p --> p pi+ pi- have been studied for the first time in the resonance region for center-of-mass energies between 1.35 GeV...
Electron Scattering From High-Momentum Neutrons in Deuterium (2005)
Klimenko, A.V., Kuhn, S.E., Butuceanu, C., Egiyan, K.S., Griffioen, K.A., Adams, G., ...
We report results from an experiment measuring the semi-inclusive reaction $d(e,e'p_s)$ where the proton $p_s$ is moving at a large angle relative to the momentum transfer. If we assume that the...
Deeply virtual and exclusive electroproduction of $\omega$-mesons (2005)
Morand, L., Doré, D., Garçon, M., Guidal, M., Morrow, S., ...
The exclusive $\omega$ electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q$^2$) with the...
Exclusive photoproduction of the cascade ($\Xi$) hyperons (2005)
Price, J.W., Nefkens, B.M.K., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We report on the first measurement of exclusive $ \Xi^-$(1321) hyperon photoproduction in $\gammap \rightarrow K^+K^+\Xi^-$ for $3.2
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., S. Egiyan, K., Minehart, R., ...
The polarized longitudinal-transverse structure function $\sigma_{LT^\prime}$ measures the interference between real and imaginary amplitudes in pion electroproduction and can be used to probe the...
Radiative decays of the $\Sigma^0$(1385) and $\Lambda$(1520) hyperons (2005)
Taylor, S., Mutchler, G.S., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
The electromagnetic decays of the Sig0(1385) and Lambda(1520) hyperons were studied in photon-induced reactions gamma p -> K+ Lambda(1116)gamma in the CLAS detector at the Thomas Jefferson National...
Survey of A$_{LT′}$ asymmetries in semi-exclusive electron scattering on $^4$He and$^12$C (2005)
Protopopescu, D., Hersman, F.W., Holtrop, M., Adams, G., Ambrozewicz, P., Anciant, E., ...
Single spin azimuthal asymmetries ALT′ were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarised electrons incident on 4He and 12C targets in the CLAS detector. ALT′...
Beam-Helicity Asymmetries in Double-Charged-Pion Photoproduction on the Proton (2005)
Strauch, S., Berman, B.L., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ...
Beam-helicity asymmetries for the two-pion-photoproduction reaction gamma + p --> p pi+ pi- have been studied for the first time in the resonance region for center-of-mass energies between 1.35 GeV...
Electron Scattering From High-Momentum Neutrons in Deuterium (2005)
Klimenko, A.V., Kuhn, S.E., Butuceanu, C., Egiyan, K.S., Griffioen, K.A., Adams, G., ...
We report results from an experiment measuring the semi-inclusive reaction $d(e,e'p_s)$ where the proton $p_s$ is moving at a large angle relative to the momentum transfer. If we assume that the...
Deeply virtual and exclusive electroproduction of $\omega$-mesons (2005)
Morand, L., Doré, D., Garçon, M., Guidal, M., Morrow, S., ...
The exclusive $\omega$ electroproduction off the proton was studied in a large kinematical domain above the nucleon resonance region and for the highest possible photon virtuality (Q$^2$) with the...
Exclusive photoproduction of the cascade ($\Xi$) hyperons (2005)
Price, J.W., Nefkens, B.M.K., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We report on the first measurement of exclusive $ \Xi^-$(1321) hyperon photoproduction in $\gammap \rightarrow K^+K^+\Xi^-$ for $3.2
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., S. Egiyan, K., Minehart, R., ...
The polarized longitudinal-transverse structure function $\sigma_{LT^\prime}$ measures the interference between real and imaginary amplitudes in pion electroproduction and can be used to probe the...
Radiative decays of the $\Sigma^0$(1385) and $\Lambda$(1520) hyperons (2005)
Taylor, S., Mutchler, G.S., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
The electromagnetic decays of the Sig0(1385) and Lambda(1520) hyperons were studied in photon-induced reactions gamma p -> K+ Lambda(1116)gamma in the CLAS detector at the Thomas Jefferson National...
Survey of A$_{LT′}$ asymmetries in semi-exclusive electron scattering on $^4$He and$^12$C (2005)
Protopopescu, D., Hersman, F.W., Holtrop, M., Adams, G., Ambrozewicz, P., Anciant, E., ...
Single spin azimuthal asymmetries ALT′ were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarised electrons incident on 4He and 12C targets in the CLAS detector. ALT′...
Osipenko, M., Ricco, G., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., ...
Inclusive electron scattering off the deuteron has been measured to extract the deuteron structure function F2 with the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National...
Tensor polarization of the $\phi$ meson photoproduced at high $t$ (2004)
McCormick, K., Audit, G., Laget, J.M., Guo, L., Weygand, D.P., Stoler, P., ...
The CLAS Electromagnetic Calorimeter at Large Angles (2004)
Anghinolfi, M., Avakian, H., Battaglieri, M., Bianchi, N., Corvisiero, P., De Vita, R., ...
The study of the response of the two modules of the large-angle electromagnetic shower calorimeter (LAC) of the CLAS detector to charged and neutral particles is reported. The results agree very well...
Niccolai, S., Audit, G., L. Berman, B., M. Laget, J., Strauch, S., Adams, G., ...
The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large acceptance of the...
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigmaLT[prime] has been measured using the p(e-vector,e[prime]pi+)n reaction in the Delta(1232) resonance region at Q2 = 0.40 and 0.65 GeV2....
Tensor polarization of the $\phi$ meson photoproduced at high $t$ (2004)
McCormick, K., Audit, G., Laget, J.M., Guo, L., Weygand, D.P., Stoler, P., ...
Observation of an exotic baryon with S=+1 in photoproduction from the proton (2004)
Kubarovsky, V., Guo, L., Weygand, D.P., Stoler, P., Niyazov, R.A., Weinstein, L.B., ...
Two nucleon momentum distributions measured in $^3$He $(e,e'pp)n$ (2004)
Niyazov, R.A., Weinstein, L.B., Carman, D.S., Joo, K., Mestayer, M.D., Raue, B.A., ...
Niccolai, S., Audit, G., L. Berman, B., M. Laget, J., Strauch, S., Adams, G., ...
The three-body photodisintegration of 3He has been measured with the CLAS detector at Jefferson Lab, using tagged photons of energies between 0.35 GeV and 1.55 GeV. The large acceptance of the...
Joo, K., C. Smith, L., G. Aznauryan, I., D. Burkert, V., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigmaLT[prime] has been measured using the p(e-vector,e[prime]pi+)n reaction in the Delta(1232) resonance region at Q2 = 0.40 and 0.65 GeV2....
Tensor polarization of the $\phi$ meson photoproduced at high $t$ (2004)
McCormick, K., Audit, G., Laget, J.M., Guo, L., Weygand, D.P., Stoler, P., ...
Observation of an exotic baryon with S=+1 in photoproduction from the proton (2004)
Kubarovsky, V., Guo, L., Weygand, D.P., Stoler, P., Niyazov, R.A., Weinstein, L.B., ...
Two nucleon momentum distributions measured in $^3$He $(e,e'pp)n$ (2004)
Niyazov, R.A., Weinstein, L.B., Carman, D.S., Joo, K., Mestayer, M.D., Raue, B.A., ...
Joo, K., Smith, L.C., Aznauryan, I.G., Burkert, V.D., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigma(LT') has been measured using the p((e) over right arrow ,e'pi(+))n reaction in the Delta(1232) resonance region at Q(2)=0.40 and 0.65...
Proton source size measurements in the eA → e'ppX reaction (2004)
Stavinsky, A.V., Mikhailov, K.R., Lednicky, R., Vlassov, A.V., Adams, G., Ambrozewich, P., ...
Two-proton correlations at small relative momentum q were studied in the eA(3He,4He,C,Fe)→e'ppX reaction at E0=4.46 GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation...
Mirazita, M., Ronchetti, F., Rossi, P., De Sanctis, E., Adams, G., Ambrozewicz, P., ...
Nearly complete angular distributions of the two-body deuteron photodisintegration differential cross section have been measured using the CEBAF Large Acceptance Spectrometer detector and the tagged...
Avakian, H., Burkert, V.D., Elouadrhiri, L., Bianchi, N., Adams, G., Afanasev, A., ...
We report the first evidence for a nonzero beam-spin azimuthal asymmetry in the electroproduction of positive pions in the deep-inelastic kinematic region. Data for the reaction ep→e'pi(+)X have...
Two-nucleon momentum distributions measured in 3He(e,e ' pp)n (2004)
Niyazov, R.A., Weinstein, L.B., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p > 250 MeV/c) peaks where two nucleons each have 20% or...
Observation of an exotic S=+1 baryon in exclusive photoproduction from the deuteron (2003)
Stepanyan, S., Hicks, K., Carman, D.S., Pasyuk, E., Schumacher, R.A., Smith, E.S., ...
In an exclusive measurement of the reaction gamma d to K/sup +/K/sup -/pn, a narrow peak that can be attributed to an exotic baryon with strangeness S=+1 is seen in the K/sup +/n invariant mass...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Single-spin asymmetries have been measured for semi-inclusive electroproduction of pi /sup +/, pi /sup -/, pi /sup 0/ and K/sup +/ mesons in deep-inelastic scattering off a longitudinally polarised...
Carman, D.S., Joo, K., Mestayer, M.D., Raue, B.A., Adams, G., Ambrozewicz, P., ...
The first measurements of the transferred polarization for the exclusive ep to e'K + Lambda reaction have been performed at Jefferson Laboratory using the CLAS spectrometer. A 2.567 GeV beam was used...
Evidence for quark-hadron duality in the proton spin asymmetry A1 (2003)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry A1. Longitudinally polarized positrons were...
The Time-of-Flight Technique for the HERMES Experiment (2003)
Airapetian, HERMES Collaboration: A., Akopov, N., Amarian, M., Avakian, H., Avetissian, A., Avetisyan, E., ...
This paper describes the use of the time-of-flight (TOF) technique as a particle identification method for the HERMES experiment. The time-of-flight is measured by two 1x4 m^2 scintillation...
Observation of an exotic S=+1 baryon in exclusive photoproduction from the deuteron (2003)
Stepanyan, S., Hicks, K., Egiyan, K.Sh., Carman, D.S., Dashyan, N., Sargsian, M., ...
Measurement of ep$\rightarrow$e'p$\pi^+\pi^-$and baryon resonance analysis (2003)
Ripani, M., Burkert, V.D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., ...
Observation of nuclear scaling in the A(e,e') reaction at $\chi_B>1$ (2003)
Egiyan, K.Sh., Dashyan, N., Sargsian, M., Stepanyan, S., Weinstein, L.B., Carman, D.S., ...
Measurement of inclusive spin structure functions of the deuteron (2003)
Yun, J., Kuhn, S.E., Dodge, G.E., Forest, T.A., Taiuti, M., Adams, G.S., ...
Photoproduction of $\omega$ meson on the proton at large momentum transfer (2003)
Battaglieri, M., Brunoldi, M., De Vita, R., Laget, J.M., Osiepenko, M., Ripani, M., ...
Observation of an exotic S=+1 baryon in exclusive photoproduction from the deuteron (2003)
Stepanyan, S., Hicks, K., Egiyan, K.Sh., Carman, D.S., Dashyan, N., Sargsian, M., ...
Measurement of ep$\rightarrow$e'p$\pi^+\pi^-$and baryon resonance analysis (2003)
Ripani, M., Burkert, V.D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., ...
Observation of nuclear scaling in the A(e,e') reaction at $\chi_B>1$ (2003)
Egiyan, K.Sh., Dashyan, N., Sargsian, M., Stepanyan, S., Weinstein, L.B., Carman, D.S., ...
Measurement of inclusive spin structure functions of the deuteron (2003)
Yun, J., Kuhn, S.E., Dodge, G.E., Forest, T.A., Taiuti, M., Adams, G.S., ...
Photoproduction of $\omega$ meson on the proton at large momentum transfer (2003)
Battaglieri, M., Brunoldi, M., De Vita, R., Laget, J.M., Osiepenko, M., Ripani, M., ...
Fatemi, R., Skabelin, A.V., Burkert, V.D., Crabb, D., Vita, R.D., Kuhn, S.E., ...
Double-polarization asymmetries for inclusive ep scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally polarized NH3 target...
Osipenko, M., Ricco, G., Taiuti, M., Ripani, M., Simula, S., Adams, G., ...
We measured the inclusive electron-proton cross section in the nucleon resonance region (W lt 2.5 GeV) at momentum transfers Q(2) below 4.5 (GeV/c)(2) with the CLAS detector. The large acceptance of...
Measurement of ep → e ' p pi(+)pi(-) and baryon resonance analysis (2003)
Ripani, M., Burkert, V.D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., ...
The cross section for the reaction ep→e'ppi(+)pi(-) was measured in the resonance region for 1.4 lt W lt 2.1 GeV and 0.5 lt Q(2) lt 1.5 GeV2/c(2) using the CLAS detector at Jefferson Laboratory....
Single-spin azimuthal asymmetry in exclusive electroproduction of pi /sup +/ mesons (2002)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
A single-spin asymmetry in the distribution of exclusively produced pi /sup +/ mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been measured for the...
Joo, K., C. Smith, L., D. Burkert, V., Minehart, R., G. Aznauryan, I., Elouadrhiri, L., ...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to quark versus pion...
Joo, K., C. Smith, L., D. Burkert, V., Minehart, R., G. Aznauryan, I., Elouadrhiri, L., ...
Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to quark versus pion...
De Vita, R., Anghinolfi, M., Burkert, V.D., Dodge, G.E., Minehart, R., Taiuti, M., ...
The double spin asymmetry in the (e) over right arrow(p) over right arrow → e' pi(+) n reaction has been measured for the first time in the resonance region for four-momentum transfer Q(2) =...
Airapetian, A., Akopov, N., Amarian, M., Aschenauer, E.C., Avakian, H., Avakian, R., ...
Spin transfer in deep-inelastic Lambda electroproduction has been studied with the HERMES detector using the 27.6 GeV polarized positron beam in the DESY HERA storage ring. For an average fractional...
Airapetian, A, Akopov, N., Akopov, Z., Amarian, M, Aschenauer, E.C., Avakian, H., ...
A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Evidence for a positive longitudinal double-spin asymmetry (A/sub 1//sup rho /)=0.24+or-0.11/sub stat/+or-0.02/sub syst/ in the cross section for exclusive diffractive rho /sup 0/(770) vector-meson...
Electroproduction of the $\lambda$(1520) hyperon (2001)
Barrow, S.P., Lukashin, K., Smith, E.S., Adams, G.S., Anciant, E., Anghinolfi, M., ...
The ep$\rightarrow$e'p$\eta$ reaction at and above the S$_{11}$(1535) baryon resonance (2001)
Thompson, R., Dytman, S., Kim, K Y., Mueller, J., Adams, G S., Amaryan, M J., ...
New cross sections for the reaction e p -> ep eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q^2 = 0.25--1.5 GeV^2. This large kinematic range...
Exclusive electroproduction of $\phi$ mesons at 4.2 GeV (2001)
Lukashin, K., Smith, E.S., Adams, G.S., Anciant, E., Anghinolfi, M., Asavapibhop, B., ...
Electroproduction of the $\lambda$(1520) hyperon (2001)
Barrow, S.P., Lukashin, K., Smith, E.S., Adams, G.S., Anciant, E., Anghinolfi, M., ...
The ep$\rightarrow$e'p$\eta$ reaction at and above the S$_{11}$(1535) baryon resonance (2001)
Thompson, R., Dytman, S., Kim, K Y., Mueller, J., Adams, G S., Amaryan, M J., ...
New cross sections for the reaction e p -> ep eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q^2 = 0.25--1.5 GeV^2. This large kinematic range...
Exclusive electroproduction of $\phi$ mesons at 4.2 GeV (2001)
Lukashin, K., Smith, E.S., Adams, G.S., Anciant, E., Anghinolfi, M., Asavapibhop, B., ...
Hadron formation in deep-inelastic positron scattering in a nuclear environment (2001)
Airapetian, A., Akopov, N., Akopov, Z., Akushevich, I., Amarian, T., Arrington, J., ...
The influence of the nuclear medium on the production of charged hadrons in semi-inclusive deep-inelastic scattering has been studied by the HERMES experiment at DESY using a 27.5 GeV positron beam....
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
The beam spin asymmetry in hard electroproduction of photons was measured in the missing-mass (Mx) range upto 7 GeV. A nonzero asymmetry was observed in the exclusive domain for Mx [less-than or...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Measurements of the individual multiplicities of pi /sup +/, pi /sup -/ and pi /sup 0/ produced in the deep-inelastic scattering of 27.5 GeV positrons on hydrogen are presented. The average charged...
The ep -->e[prime]peta Reaction at and above the S11(1535) Baryon Resonance (2001)
Adams, G. S., Amaryan, M. J., Anciant, E., Anghinolfi, M., Asavapibhop, B., Audit, G., ...
Photoproduction of $\phi$(1020) mesons on the proton at large momentum transfer (2000)
Anciant, E., Lukashin, K., Smith, E.S., Adams, G.S., Anghinolfi, M., Asavapibhop, B., ...
Photoproduction of $\phi$(1020) mesons on the proton at large momentum transfer (2000)
Anciant, E., Lukashin, K., Smith, E.S., Adams, G.S., Anghinolfi, M., Asavapibhop, B., ...
Measurement of Angular Distributions and (2000)
In Diractive Electroproduction, A. Airapetian, N. Akopov, M. Amarian, H. Avakian
. Production and decay angular distributions were extracted from measurements of exclusive electroproduction of the # 0 (770) meson over a range in the virtual photon negative four-momentum squared...
Observation of a coherence length effect in exclusive ρ(0) electroproduction (1999)
Ackerstaff, K., Airapetian, A., Akopov, N., Akushevich, I., Amarian, M., Aschenauer, E. C., ...
Exclusive incoherent electroproduction of the ρ0(770) meson from 1H, 2H, 3He, and 14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q^2>0.4 GeV^2 and positron...
Beam-induced nuclear depolarization in a gaseous polarized-hydrogen target (1999)
Ackerstaff, K., Airapetian, A., Akopov, N., Amarian, M., Aschenauer, E. C., Avakian, H., ...
Spin-polarized atomic hydrogen is used as a gaseous polarized-proton target in high-energy and nuclear-physics experiments operating with internal beams in storage rings. When such beams are intense...
Flavor asymmetry of the light quark sea from semi-inclusive deep-inelastic scattering (1998)
Ackerstaff, K., Airapetian, A., Akopov, N., Akushevich, I., Amarian, M., Ashenauer, E. C., ...
The flavor asymmetry of the light quark sea of the nucleon is determined in the kinematic range 0.02 < x < 0.3 and 1 < Q(2) < 10 GeV2 for the first time from semi-inclusive deep-inelastic scattering....
Performance of the Electromagnetic Calorimeter of the HERMES Experiment (1998)
The performance of the electromagnetic calorimeter of the HERMES experiment is described. The calorimeter consists of 840 radiation resistant F101 lead-glass counters. The response to positrons up to...
Arguello, R, Pay, AL, McDermott, A, Ross, J, Dunn, P, Avakian, H, ...
Double-spin asymmetry in the cross section for exclusive rho0 production in lepton-proton scattering
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Evidence for a positive longitudinal double-spin asymmetry (A/sub 1//sup rho /)=0.24+or-0.11/sub stat/+or-0.02/sub syst/ in the cross section for exclusive diffractive rho /sup 0/(770) vector-meson...
Evidence for quark-hadron duality in the proton spin asymmetry A1
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry A1. Longitudinally polarized positrons were...
Hadron formation in deep-inelastic positron scattering in a nuclear environment
Airapetian, A., Akopov, N., Akopov, Z., Akushevich, I., Amarian, T., Arrington, J., ...
The influence of the nuclear medium on the production of charged hadrons in semi-inclusive deep-inelastic scattering has been studied by the HERMES experiment at DESY using a 27.5 GeV positron beam....
Measurement of longitudinal spin transfer to Lambda hyperons in deep-inelastic lepton scattering
Airapetian, A., Akopov, N., Amarian, M., Aschenauer, E.C., Avakian, H., Avakian, R., ...
Spin transfer in deep-inelastic Lambda electroproduction has been studied with the HERMES detector using the 27.6 GeV polarized positron beam in the DESY HERA storage ring. For an average fractional...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Single-spin asymmetries have been measured for semi-inclusive electroproduction of pi /sup +/, pi /sup -/, pi /sup 0/ and K/sup +/ mesons in deep-inelastic scattering off a longitudinally polarised...
Measurement of the beam-spin azimuthal asymmetry associated with deeply-virtual compton scattering
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
The beam spin asymmetry in hard electroproduction of photons was measured in the missing-mass (Mx) range upto 7 GeV. A nonzero asymmetry was observed in the exclusive domain for Mx [less-than or...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Measurements of the individual multiplicities of pi /sup +/, pi /sup -/ and pi /sup 0/ produced in the deep-inelastic scattering of 27.5 GeV positrons on hydrogen are presented. The average charged...
Single-spin azimuthal asymmetry in exclusive electroproduction of pi /sup +/ mesons
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
A single-spin asymmetry in the distribution of exclusively produced pi /sup +/ mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been measured for the...
Airapetian, A, Akopov, N., Akopov, Z., Amarian, M, Aschenauer, E. C., Avakian, H., ...
A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off...
First measurement of transferred polarization in the exclusive ep to e'K/sup +/ Lambda reaction
Carman, D.S., Joo, K., Mestayer, M.D., Raue, B.A., Adams, G., Ambrozewicz, P., ...
The first measurements of the transferred polarization for the exclusive ep to e'K + Lambda reaction have been performed at Jefferson Laboratory using the CLAS spectrometer. A 2.567 GeV beam was used...
De Vita, R., Anghinolfi, M., Burkert, V.D., Dodge, G.E., Minehart, R., Taiuti, M., ...
The double spin asymmetry in the (e) over right arrow(p) over right arrow → e' pi(+) n reaction has been measured for the first time in the resonance region for four-momentum transfer Q(2) =...
Measurement of the proton spin structure function g1(x,Q2) for Q2 from 0.15 to 1.6 GeV2 with CLAS
Fatemi, R., Skabelin, A.V., Burkert, V.D., Crabb, D., Vita, R.D., Kuhn, S.E., ...
Double-polarization asymmetries for inclusive ep scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally polarized NH3 target...
Osipenko, M., Ricco, G., Taiuti, M., Ripani, M., Simula, S., Adams, G., ...
We measured the inclusive electron-proton cross section in the nucleon resonance region (W lt 2.5 GeV) at momentum transfers Q(2) below 4.5 (GeV/c)(2) with the CLAS detector. The large acceptance of...
Measurement of ep → e ' p pi(+)pi(-) and baryon resonance analysis
Ripani, M., Burkert, V.D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., ...
The cross section for the reaction ep→e'ppi(+)pi(-) was measured in the resonance region for 1.4 lt W lt 2.1 GeV and 0.5 lt Q(2) lt 1.5 GeV2/c(2) using the CLAS detector at Jefferson Laboratory....
Observation of an exotic S=+1 baryon in exclusive photoproduction from the deuteron
Stepanyan, S., Hicks, K., Carman, D.S., Pasyuk, E., Schumacher, R.A., Smith, E.S., ...
In an exclusive measurement of the reaction gamma d to K/sup +/K/sup -/pn, a narrow peak that can be attributed to an exotic baryon with strangeness S=+1 is seen in the K/sup +/n invariant mass...
Joo, K., Smith, L.C., Aznauryan, I.G., Burkert, V.D., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigma(LT') has been measured using the p((e) over right arrow ,e'pi(+))n reaction in the Delta(1232) resonance region at Q(2)=0.40 and 0.65...
Proton source size measurements in the eA → e'ppX reaction
Stavinsky, A.V., Mikhailov, K.R., Lednicky, R., Vlassov, A.V., Adams, G., Ambrozewich, P., ...
Two-proton correlations at small relative momentum q were studied in the eA(3He,4He,C,Fe)→e'ppX reaction at E0=4.46 GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation...
Mirazita, M., Ronchetti, F., Rossi, P., De Sanctis, E., Adams, G., Ambrozewicz, P., ...
Nearly complete angular distributions of the two-body deuteron photodisintegration differential cross section have been measured using the CEBAF Large Acceptance Spectrometer detector and the tagged...
Measurement of beam-spin asymmetries for π+ electroproduction above the baryon resonance region
Avakian, H., Burkert, V.D., Elouadrhiri, L., Bianchi, N., Adams, G., Afanasev, A., ...
We report the first evidence for a nonzero beam-spin azimuthal asymmetry in the electroproduction of positive pions in the deep-inelastic kinematic region. Data for the reaction ep→e'pi(+)X have...
Two-nucleon momentum distributions measured in 3He(e,e ' pp)n
Niyazov, R.A., Weinstein, L.B., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p > 250 MeV/c) peaks where two nucleons each have 20% or...
A novel method for simultaneous high resolution identification of HLA-A, HLA-B, and HLA-Cw alleles.
Arguello, R, Avakian, H, Goldman, J M, Madrigal, J A
We describe a novel high resolution DNA based typing approach for HLA class I alleles, which identifies the recombinational motifs present in exons 2 and 3 of the HLA class I genes. Unique...
Arguello, R, Pay, A L, McDermott, A, Ross, J, Dunn, P, Avakian, H, ...
We describe a method, complementary strand analysis (CSA), for separating alleles potentially from any heterozygous genetic locus. Locus specific PCR is performed generating two allelic products. The...
A novel method for simultaneous high resolution identification of HLA-A, HLA-B, and HLA-Cw alleles.
Arguello, R, Avakian, H, Goldman, J M, Madrigal, J A
We describe a novel high resolution DNA based typing approach for HLA class I alleles, which identifies the recombinational motifs present in exons 2 and 3 of the HLA class I genes. Unique...
Arguello, R, Pay, A L, McDermott, A, Ross, J, Dunn, P, Avakian, H, ...
We describe a method, complementary strand analysis (CSA), for separating alleles potentially from any heterozygous genetic locus. Locus specific PCR is performed generating two allelic products. The...
Double-spin asymmetry in the cross section for exclusive rho0 production in lepton-proton scattering
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Evidence for a positive longitudinal double-spin asymmetry (A/sub 1//sup rho /)=0.24+or-0.11/sub stat/+or-0.02/sub syst/ in the cross section for exclusive diffractive rho /sup 0/(770) vector-meson...
Evidence for quark-hadron duality in the proton spin asymmetry A1
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
Spin-dependent lepton-nucleon scattering data have been used to investigate the validity of the concept of quark-hadron duality for the spin asymmetry A1. Longitudinally polarized positrons were...
Hadron formation in deep-inelastic positron scattering in a nuclear environment
Airapetian, A., Akopov, N., Akopov, Z., Akushevich, I., Amarian, T., Arrington, J., ...
The influence of the nuclear medium on the production of charged hadrons in semi-inclusive deep-inelastic scattering has been studied by the HERMES experiment at DESY using a 27.5 GeV positron beam....
Measurement of longitudinal spin transfer to Lambda hyperons in deep-inelastic lepton scattering
Airapetian, A., Akopov, N., Amarian, M., Aschenauer, E.C., Avakian, H., Avakian, R., ...
Spin transfer in deep-inelastic Lambda electroproduction has been studied with the HERMES detector using the 27.6 GeV polarized positron beam in the DESY HERA storage ring. For an average fractional...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Single-spin asymmetries have been measured for semi-inclusive electroproduction of pi /sup +/, pi /sup -/, pi /sup 0/ and K/sup +/ mesons in deep-inelastic scattering off a longitudinally polarised...
Measurement of the beam-spin azimuthal asymmetry associated with deeply-virtual compton scattering
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
The beam spin asymmetry in hard electroproduction of photons was measured in the missing-mass (Mx) range upto 7 GeV. A nonzero asymmetry was observed in the exclusive domain for Mx [less-than or...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Arrington, J., Aschenauer, E.C., ...
Measurements of the individual multiplicities of pi /sup +/, pi /sup -/ and pi /sup 0/ produced in the deep-inelastic scattering of 27.5 GeV positrons on hydrogen are presented. The average charged...
Single-spin azimuthal asymmetry in exclusive electroproduction of pi /sup +/ mesons
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E.C., Avakian, H., ...
A single-spin asymmetry in the distribution of exclusively produced pi /sup +/ mesons azimuthally around the virtual photon direction relative to the lepton scattering plane has been measured for the...
Airapetian, A, Akopov, N., Akopov, Z., Amarian, M, Aschenauer, E. C., Avakian, H., ...
A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off...
First measurement of transferred polarization in the exclusive ep to e'K/sup +/ Lambda reaction
Carman, D.S., Joo, K., Mestayer, M.D., Raue, B.A., Adams, G., Ambrozewicz, P., ...
The first measurements of the transferred polarization for the exclusive ep to e'K + Lambda reaction have been performed at Jefferson Laboratory using the CLAS spectrometer. A 2.567 GeV beam was used...
De Vita, R., Anghinolfi, M., Burkert, V.D., Dodge, G.E., Minehart, R., Taiuti, M., ...
The double spin asymmetry in the (e) over right arrow(p) over right arrow → e' pi(+) n reaction has been measured for the first time in the resonance region for four-momentum transfer Q(2) =...
Measurement of the proton spin structure function g1(x,Q2) for Q2 from 0.15 to 1.6 GeV2 with CLAS
Fatemi, R., Skabelin, A.V., Burkert, V.D., Crabb, D., Vita, R.D., Kuhn, S.E., ...
Double-polarization asymmetries for inclusive ep scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally polarized NH3 target...
Osipenko, M., Ricco, G., Taiuti, M., Ripani, M., Simula, S., Adams, G., ...
We measured the inclusive electron-proton cross section in the nucleon resonance region (W lt 2.5 GeV) at momentum transfers Q(2) below 4.5 (GeV/c)(2) with the CLAS detector. The large acceptance of...
Measurement of ep → e ' p pi(+)pi(-) and baryon resonance analysis
Ripani, M., Burkert, V.D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., ...
The cross section for the reaction ep→e'ppi(+)pi(-) was measured in the resonance region for 1.4 lt W lt 2.1 GeV and 0.5 lt Q(2) lt 1.5 GeV2/c(2) using the CLAS detector at Jefferson Laboratory....
Observation of an exotic S=+1 baryon in exclusive photoproduction from the deuteron
Stepanyan, S., Hicks, K., Carman, D.S., Pasyuk, E., Schumacher, R.A., Smith, E.S., ...
In an exclusive measurement of the reaction gamma d to K/sup +/K/sup -/pn, a narrow peak that can be attributed to an exotic baryon with strangeness S=+1 is seen in the K/sup +/n invariant mass...
Joo, K., Smith, L.C., Aznauryan, I.G., Burkert, V.D., Minehart, R., Adams, G., ...
The polarized longitudinal-transverse structure function sigma(LT') has been measured using the p((e) over right arrow ,e'pi(+))n reaction in the Delta(1232) resonance region at Q(2)=0.40 and 0.65...
Proton source size measurements in the eA → e'ppX reaction
Stavinsky, A.V., Mikhailov, K.R., Lednicky, R., Vlassov, A.V., Adams, G., Ambrozewich, P., ...
Two-proton correlations at small relative momentum q were studied in the eA(3He,4He,C,Fe)→e'ppX reaction at E0=4.46 GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation...
Mirazita, M., Ronchetti, F., Rossi, P., De Sanctis, E., Adams, G., Ambrozewicz, P., ...
Nearly complete angular distributions of the two-body deuteron photodisintegration differential cross section have been measured using the CEBAF Large Acceptance Spectrometer detector and the tagged...
Measurement of beam-spin asymmetries for π+ electroproduction above the baryon resonance region
Avakian, H., Burkert, V.D., Elouadrhiri, L., Bianchi, N., Adams, G., Afanasev, A., ...
We report the first evidence for a nonzero beam-spin azimuthal asymmetry in the electroproduction of positive pions in the deep-inelastic kinematic region. Data for the reaction ep→e'pi(+)X have...
Two-nucleon momentum distributions measured in 3He(e,e ' pp)n
Niyazov, R.A., Weinstein, L.B., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., ...
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p > 250 MeV/c) peaks where two nucleons each have 20% or...
Uveitis, vitreous humor, and klebsiella. I. Binding studies with rabbit antisera.
Avakian, H, Abuknesha, R, Welsh, J, Ebringer, A
Uveitis occur in a proportion of patients with ankylosing spondylitis, and an increased faecal isolation of the Gram-negative micro-organism Klebsiella pneumoniae has been reported from such...
Uveitis, vitreous humour, and klebsiella. II. Cross-reactivity studies with radioimmunoassay.
Welsh, J, Avakian, H, Ebringer, A
Radioimmunoassay with calf and cow vitreous humour-I125 and rabbit antivitreous humour serum has been employed to investigate the immunological cross-reactivity of vitreous humour with bacterial and...