Investigation of the Exclusive ^{3}He(e,e'pn)p Reaction (2009)
Middleton, D. G., Annand, J. R. M., Antelo, M. Ases, Ayerbe, C., Barneo, P., Baumann, D., ...
Cross sections for the ^{3}He(e,e'pn)p reaction were measured for the first time at energy transfers of 220 and 270 MeV for several momentum transfers ranging from 300 to 450 MeV/c. Cross sections...
Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering (2009)
HERMES Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, ...
Internal report | Preprint
HERMES Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, ...
Internal report | Preprint
Exclusive rho-0 electroproduction on transversely polarized protons (2009)
HERMES Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, ...
Internal report | Preprint
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, E.C. Aschenauer, W. Augustyniak, ...
Internal report | Preprint
Search for a Two-Photon Exchange Contribution to Inclusive Deep-Inelastic Scattering (2009)
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, E.C. Aschenauer, W. Augustyniak, ...
Internal report | Preprint
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, A. Andrus, E.C. Aschenauer, ...
Journal article
Exclusive ρ0 electroproduction on transversely polarized protons (2009)
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, E.C. Aschenauer, W. Augustyniak, ...
Journal article
The HERMERS Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, ...
Internal report | Preprint
Observation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering (2009)
HERMES Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, E.C. Aschenauer, ...
Journal article
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, M. Amarian, E.C. Aschenauer, ...
Internal report | Preprint
A. Airapetian, DESY Forschung Hochenergiephysik, N. Akopov, Z. Akopov, M. Amarian, E.C. Aschenauer, ...
Internal report | Preprint
Blok, H. P., Horn, T., Huber, G. M., Beise, E. J., Gaskell, D., Mack, D. J., ...
Cross sections for the reaction ${^1}$H($e,e'\pi^+$)$n$ were measured in Hall C at Thomas Jefferson National Accelerator Facility (JLab) using the CEBAF high-intensity, continous electron beam in...
Huber, G. M., Blok, H. P., Horn, T., Beise, E. J., Gaskell, D., Mack, D. J., ...
The charged pion form factor, Fpi(Q^2), is an important quantity which can be used to advance our knowledge of hadronic structure. However, the extraction of Fpi from data requires a model of the...
He-3(e,e'pp) and He-3(e,e'pn) reactions at AmPS and MAMI (2008)
Middleton, D.G., Annand, J.R.M., Ases Antelo, M., Ayerbe, C., Barneo, P., Baumann, D., ...
This paper reports on measurements of the He-3(e,e'pp) reaction measured at AmPS and the He-3(e,e'pn) reaction measured at MAMI. The measurements were performed in similar kinematics to allow a...
HERMES Collaboration, DESY Forschung Hochenergiephysik, A. Airapetian, N. Akopov, Z. Akopov, A. Andrus, ...
Internal report | Preprint
Airapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E.C., ...
"Azimuthal asymmetries in exclusive electroproduction of real photons are measured for the first time with respect to transverse target polarisation, providing new constraints on Generalized Parton...
Transverse momentum dependence of semi-inclusive pion production (2007)
Mkrtchyan, H., Bosted, P. E., Adams, G. S., Ahmidouch, A., Angelescu, T., Arrington, J., ...
Cross sections for semi-inclusive electroproduction of charged pions ($\pi^{\pm}$) from both proton and deuteron targets were measured for $0.2
First measurements of the ^16O(e,e'pn)^14N reaction (2007)
Middleton, D. G., Annand, J. R. M., Barbieri, C., Barneo, P., Bartsch, P., Bauman, D., ...
This paper reports on the first measurement of the ^16O(e,e'pn)^14N reaction. Data were measured in kinematics centred on a super-parallel geometry at energy and momentum transfers of 215 MeV and 316...
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
Determination of the pion charge form factor for Q^2=0.60-1.60 GeV^2 (2006)
Blok, H. P., Huber, G. M., Abbott, D., Anklin, H., Armstrong, C., ...
The data analysis for the reaction H(e,e' pi^+)n, which was used to determine values for the charged pion form factor Fpi for values of Q^2=0.6-1.6 GeV^2, has been repeated with careful inspection of...
Determination of the Charged Pion Form Factor at Q2=1.60 and 2.45 (GeV/c)2 (2006)
Aniol, K., Arrington, J., Barrett, B., Beise, E. J., Blok, H. P., ...
The H(e,e'pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F_pi) was...
A-dependence of hadronization in nuclei (2006)
H.P. Blok, DESY Forschung Hochenergiephysik, L. Lapikás
Journal article
Duality in the Polarized Structure Functions 2005-06-06 - 2005-06-08 (2006)
H.P. Blok, DESY Forschung Hochenergiephysik
Contribution to a conf. proceeding (book/online)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries of semiinclusive cross sections for the production of identified pions and kaons have been measured in deep inelastic scattering of polarized positrons on a polarized...
Hard exclusive electroproduction of π+π-pairs (2004)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Hard exclusive electroproduction of pi(+) pi(-) pairs off hydrogen and deuterium targets has been studied by the HERMES experiment at DESY Legendre moments (P-1) and (P-3) of the angular...
Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction (2004)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel pK(S)(0) → ppi(+)pi(-). A peak is observed in the pK(S)(0) invariant mass...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries in the cross section of electroproduction of rho /sup 0/ and phi mesons on the proton and deuteron are measured at the HERMES experiment. The photoabsorption asymmetry in...
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...
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...
Q2 dependence of nuclear transparency for exclusive rho0 production (2003)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Q2 dependence of nuclear transparency for exclusive rho0 production (2003)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Quark fragmentation to pi(+/-), pi(0), K-+/-, p and (p)over-bar in the nuclear environment (2003)
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
The influence of the nuclear medium on lepto-production of hadrons was studied in the HERMES experiment at DESY in semi- inclusive deep-inelastic scattering of 27.6 GeV positrons off deuterium,...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
The Gerasimov-Drell-Hearn (GDH) sum rule connects the anomalous contribution to the magnetic moment of the target nucleus with an energy-weighted integral of the difference of the helicity- dependent...
Blok, H. P., Huber, G. M., Mack, D. J.
The experimental situation with regard to measurements of the pion charge form factor is reviewed. Both existing data and planned experiments are discussed.
The $^3$He(e, e$'$d)p Reaction in q$\omega$-constant Kinematics (2002)
Spaltro, C. M., Bauer, Th. S., Blok, H. P., Botto, T., Cisbani, E., De Leo, R., ...
The cross section for the $^3$He(e, e$'$d)p reaction has been measured as a function of the missing momentum $p_m$ in q$\omega$ -constant kinematics at beam energies of 370 and 576 MeV for values of...
Electron-induced neutron knockout from $^{4}$He (2002)
Misiejuk, A., Papandreou, Z., Voutier, E., Bauer, Th.S., Blok, H.P., Boersma, D.J., ...
Electron-induced neutron knockout from $^{4}$He (2002)
Misiejuk, A., Papandreou, Z., Voutier, E., Bauer, Th.S., Blok, H.P., Boersma, D.J., ...
Nuclear transparency from quasielastic A(e,e^{'}p) reactions up to Q^{2}=8.1 (GeV/c)^{2} (2002)
Ahmidouch, A., Armstrong, C.S., Arrington, J., Asaturyan, R., Avery, S., Baker, O.K., ...
Electron-Induced Neutron Knockout from^{4}He (2002)
Bauer, Th.S., Blok, H.P., Boersma, D.J., Bruins, E.E.W., Bok, H.W. Den, Farzanpay, F., ...
Electron-induced neutron knockout from $^{4}$He (2002)
Misiejuk, A., Papandreou, Z., Voutier, E., Bauer, Th.S., Blok, H.P., Boersma, D.J., ...
Electron-induced neutron knockout from $^{4}$He (2002)
Misiejuk, A., Papandreou, Z., Voutier, E., Bauer, Th.S., Blok, H.P., Boersma, D.J., ...
Electron-induced neutron knockout from $^{4}$He (2002)
Misiejuk, A., Papandreou, Z., Voutier, E., Bauer, Th.S., Blok, H.P., Boersma, D.J., ...
Investigation of the exclusive He-3(e,e ' pp)n reaction (2001)
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e,e'pp)n reaction were measured over a wide range of energy and three-momentum transfer. At a momentum transfer q=375 MeV/c, data were taken at transferred energies omega...
Investigation of the Exclusive 3He(e,e'pp)n Reaction (2000)
Groep, D. L., Van Batenburg, M. F., Bauer, Th. S., Blok, H. P., Boersma, D. J., Cisbani, E., ...
Cross sections for the 3He(e,e'pp)n reaction were measured over a wide range of energy and three- momentum transfer. At a momentum transfer q=375 MeV/c, data were taken at transferred energies omega...
A consistent analysis of (e,e'p) and (d,3He) experiments (2000)
Kramer, G. J., Blok, H. P., Lapikas, L.
The apparent discrepancy between spectroscopic factors obtained in (e,e'p) and (d,3He) experiments is investigated. This is performed first for 48Ca(e,e'p) and 48Ca(d,3He) experiments and then for...
Investigation of the exclusive^{3}He(e,e^{'}pp)n reaction (2000)
Bauer, Th.S., Blok, H.P., Boersma, D.J., Cisbani, E., Leo, R. De, Vries, H. De, ...
Investigation of the Exclusive 3He(e,e'pp) Reaction (1999)
Groep, D. L., Van Batenburg, M. F., Bauer, Th. S., Blok, H. P., Boersma, D. J., Cisbani, E., ...
Cross sections for the 3He(e,e'pp)n reaction were measured at an energy transfer of 220 MeV and three-momentum transfers q of 305, 375, and 445 MeV/c. Results are presented as a function of q and the...
Investigation of the exclusive He-3(e,e ' pp)n reaction (1999)
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e, e'pp)n reaction were measured at an energy transfer of 220 MeV and three-momentum transfers q of 305, 375, and 445 MeV/c. Results are presented as a function of q and...
Trinucleon cluster knockout from^{6}Li (1998)
Berman, B.L., Blok, H.P., Briscoe, W.J., Connelly, J.P., Dhuga, K.S., Ent, R., ...
The $^4$He$(e,e'p)$ Cross Section at Large Missing Energy (1997)
Van Leeuwe, J. J., Blok, H. P., Bulten, H. J., Dodge, G. E., Ent, R., ...
The $(e,e'p)$ reaction on $^{4}{He}$ nuclei was studied in kinematics designed to emphasize effects of nuclear short-range correlations. The measured cross sections display a peak in the kinematical...
Deuteron Electrodisintegration in the Delta -Resonance Region (1997)
Arenhovel, H., Blok, H.P., Dodge, G.E., Hesselink, W.H.A., Jans, E., Kalantar-Nayestanaki, N., ...
High missing-momentum components in $^{4}He$ studied with the $e,e'p$ reaction (1996)
Van Leeuwe, J J, Blok, H P, Bulten, H J, Dodge, G E, Ent, R, ...
Neutral-pion electroproduction on the proton near threshold (1995)
Bobeldijk, I., Jager, C.W. De, Jans, E., Konijn, J., Lapikas, L., ...
Search for nucleon-nucleon correlations in the proton spectral function of $^{208}$Pb' (1995)
I. Bobeldijk (et Al), I., Bobeldijk, I., Jans, E., Lapikas, L., Steenhoven, G. Van Der, Steijger, J.J.M., ...
Neutral-Pion Electroproduction on the Proton near Threshold (1995)
Blok, H.P., Bobeldijk, I., Bouwhuis, M., Jager, C.W. De, Jonge, N. De, Dodge, G.E., ...
Quasielastic proton knockout from^{16}O (1994)
Blok, H.P., Calarco, J.R., Friedrich, J., Hersman, F.W., Jans, E., ...
Hadronization in nuclear matter (1993)
Anton, G., Arends, J., Berrier-Ronsin, G., Bertin, P.Y., Bialas, A., Blok, H.P., ...
Hadronization in nuclear matter (1993)
Anton, G., Arends, J., Berrier-Ronsin, G., Bertin, P.Y., Bialas, A., Blok, H.P., ...
Separated structure functions for the proton-knockout reaction^{16}O(e,e'p) (1993)
Blok, H.P., Jans, E., Lapikas, L., Spaltro, C.M., Schaar, M. Van Der, ...
Mechanism of the^{6}Li(e,e' alpha ) reaction (1991)
Berman, B.L., Blok, H.P., Briscoe, W.J., Daman, M.A., Ent, R., Jans, E., ...
Study of the proton 2p_{3/2}--andgt;2p_{1/2} transition in^{65}Cu and^{71}Ga (1991)
Blok, H.P., Jager, C.W. De, Vries, H. De, Vries, L. De, Harakeh, M.N., Heisenberg, J.H., ...
Electron scattering off the ground-state band and the gamma band in^{150}Nd (1991)
Blok, H.P., Jager, C.W. De, Vries, H. De, Garg, U., Girod, M., Harakeh, M.N., ...
Mechanism of the reaction^{4}He(e,e'd)^{2}H (1991)
Blok, H.P., Bulten, H.J., Ent, R., Jans, E., Lapikas, L., Morita, H., ...
(e,e'p) study of triton+deuteron+proton clustering in^{6}Li (1989)
Blok, H.P., Ent, R., Jans, E., Kramer, G.J., Kruppa, A.T., ...
Deuteron Formation in the Reaction^{12}C(e,nbspe^{'}d)^{10}B_{T=1} (1989)
Berman, B.L., Blok, H.P., Briscoe, W.J., Ent, R., Jans, E., ...
Inelastic electron scattering from^{64}Ni (1988)
Blok, H.P., Braunstein, M.R., Vries, H. De, Kraushaar, J.J., Michel, R.P., Mitchell, J.H., ...
Comment on "Medium-Modified Form Factors, Relativistic Dynamics, and the (e,e^{'}p) Reaction" (1988)
Blok, H.P., Boffi, S., Giusti, C., Jans, E., Lapikas, L., ...
Electrodisintegration of^{4}He Studied with the Reaction^{4}He(e,e^{'}p)^{3}H (1988)
Blok, H.P., Ent, R., Jans, E., Kramer, G.J., ...
Nuclear-density dependence of the electron-proton coupling (1987)
Blok, H.P., Boffi, S., Forest, T. De, Ent, R., ...
Proton Knockout from the 1f_7/2 Orbital in 40-Ca and 48-Ca (1986)
Nann, H., Van Der Berg, A.M., Blok, H.P., Ent, R., ...
This research was sponsored by the National Science Foundation Grant NSF PHY 87-14406
Proton Knockout from the 1f_7/2 Orbital in 40-Ca and 48-Ca (1986)
Nann, H., Van Der Berg, A.M., Blok, H.P., Ent, R., ...
This research was sponsored by the National Science Foundation Grant NSF PHY 87-14406
Excitation of 1$^+$ states in $^{88}$Sr by proton inelastic scattering (1985)
Morlet, M., Djalali, C., Marty, N., Willis, A., Jourdain, J.C., Kouw, L.R., ...
Excitation of 1$^+$ states in $^{88}$Sr by proton inelastic scattering (1985)
Morlet, M., Djalali, C., Marty, N., Willis, A., Jourdain, J.C., Kouw, L.R., ...
High-resolution (e,e'p) study of the 1/2+ state at 6.79 MeV in 11B (1985)
Steenhoven, G. Van Der, Blok, H.P., Jans, E., Keizer, P.H.M., Lapikás, L., ...
The spectral function for the reaction 12C(e,e′p) 11B leading to the 1/2+ state at 6.79 MeV in 11B has been measured. The excitation of this non-normal parity state indicates the presence of wave...
Excitation of positive-parity states in electron scattering from^{90}Zr (1984)
Blok, H.P., Dawson, J., Heisenberg, J., Hintz, N., Lichtenstadt, J., McCarthy, J.S., ...
Proposed excited band with reduced moment of inertia in^{156}Gd (1974)
Blok, H.P., Gunther, C., Hubel, H., Hulstman, L., Kaptein, E.J., Knopfle, K.T., ...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries in the cross section of electroproduction of rho /sup 0/ and phi mesons on the proton and deuteron are measured at the HERMES experiment. The photoabsorption asymmetry in...
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...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries of semiinclusive cross sections for the production of identified pions and kaons have been measured in deep inelastic scattering of polarized positrons on a polarized...
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...
Q2 dependence of nuclear transparency for exclusive rho0 production
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Q2 dependence of nuclear transparency for exclusive rho0 production
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Quark fragmentation to pi(+/-), pi(0), K-+/-, p and (p)over-bar in the nuclear environment
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
The influence of the nuclear medium on lepto-production of hadrons was studied in the HERMES experiment at DESY in semi- inclusive deep-inelastic scattering of 27.6 GeV positrons off deuterium,...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
The Gerasimov-Drell-Hearn (GDH) sum rule connects the anomalous contribution to the magnetic moment of the target nucleus with an energy-weighted integral of the difference of the helicity- dependent...
Investigation of the exclusive He-3(e,e ' pp)n reaction
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e,e'pp)n reaction were measured over a wide range of energy and three-momentum transfer. At a momentum transfer q=375 MeV/c, data were taken at transferred energies omega...
Investigation of the exclusive He-3(e,e ' pp)n reaction
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e, e'pp)n reaction were measured at an energy transfer of 220 MeV and three-momentum transfers q of 305, 375, and 445 MeV/c. Results are presented as a function of q and...
Hard exclusive electroproduction of π+π-pairs
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Hard exclusive electroproduction of pi(+) pi(-) pairs off hydrogen and deuterium targets has been studied by the HERMES experiment at DESY Legendre moments (P-1) and (P-3) of the angular...
Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel pK(S)(0) → ppi(+)pi(-). A peak is observed in the pK(S)(0) invariant mass...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries in the cross section of electroproduction of rho /sup 0/ and phi mesons on the proton and deuteron are measured at the HERMES experiment. The photoabsorption asymmetry in...
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...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Double-spin asymmetries of semiinclusive cross sections for the production of identified pions and kaons have been measured in deep inelastic scattering of polarized positrons on a polarized...
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...
Q2 dependence of nuclear transparency for exclusive rho0 production
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Q2 dependence of nuclear transparency for exclusive rho0 production
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Exclusive coherent and incoherent electroproduction of the rho(0) meson from H-1 and N-14 targets has been studied at the HERMES experiment as a function of coherence length (l(c)), corresponding to...
Quark fragmentation to pi(+/-), pi(0), K-+/-, p and (p)over-bar in the nuclear environment
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
The influence of the nuclear medium on lepto-production of hadrons was studied in the HERMES experiment at DESY in semi- inclusive deep-inelastic scattering of 27.6 GeV positrons off deuterium,...
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Aschenauer, E.C., ...
The Gerasimov-Drell-Hearn (GDH) sum rule connects the anomalous contribution to the magnetic moment of the target nucleus with an energy-weighted integral of the difference of the helicity- dependent...
Investigation of the exclusive He-3(e,e ' pp)n reaction
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e,e'pp)n reaction were measured over a wide range of energy and three-momentum transfer. At a momentum transfer q=375 MeV/c, data were taken at transferred energies omega...
Investigation of the exclusive He-3(e,e ' pp)n reaction
Groep, D.L., Van Batenburg, M.F., Bauer, T.S., Blok, H.P., Boersma, D.J., Cisbani, E., ...
Cross sections for the He-3(e, e'pp)n reaction were measured at an energy transfer of 220 MeV and three-momentum transfers q of 305, 375, and 445 MeV/c. Results are presented as a function of q and...
Hard exclusive electroproduction of π+π-pairs
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Hard exclusive electroproduction of pi(+) pi(-) pairs off hydrogen and deuterium targets has been studied by the HERMES experiment at DESY Legendre moments (P-1) and (P-3) of the angular...
Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Ammosov, V.V., Andrus, A., ...
Evidence for a narrow baryon state is found in quasi-real photoproduction on a deuterium target through the decay channel pK(S)(0) → ppi(+)pi(-). A peak is observed in the pK(S)(0) invariant mass...