R. Michaels

Publication List Details

Period

1990 - 2008

Number

276

Co-Authors

Quark-Hadron Duality in Neutron (3He) Spin Structure (2008)

Solvignon, P., Liyanage, N., Choi, Seonho, Aniol, K., Averett, T., ...

We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g_1 of the neutron and $^3$He using a polarized 3He target in the...

3He Spin-Dependent Cross Sections and Sum Rules (2008)

Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., ...

We present a measurement of the spin-dependent cross sections for the \vec{^3He}(\vec{e},e')X} reaction in the quasielastic and resonance regions at four-momentum transfer 0.1 < Q^2< 0.9 GeV^2. The...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

Measurements of the deuteron elastic structure function $A(Q^2)$ for $0.7\leq Q^2\leq 6.0$ (GeV/c)$^2$ at Jefferson Laboratory (2007)

Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Auerbach, L., Baker, F.T., ...

The deuteron elastic structure function A(Q^2) has been extracted in the Q^2 range 0.7 to 6.0 (GeV/c)^2 from cross section measurements of elastic electron-deuteron scattering in coincidence using...

$G_{E_p}/G_{M_p}$ ratio by polarization transfer in $\vec{e}p\rightarrow e\vec{p}$ (2007)

Jones, M.K., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., ...

The ratio of the proton's elastic electromagnetic form factors was obtained by measuring the transverse and longitudinal polarizations of recoiling protons from the elastic scattering of polarized...

Dynamics of the $^{16}$O(e,e'p) cross section at high missing energies (2007)

Liyanage, N., Anderson, B.D., Aniol, K.A., Auerbach, L., Baker, F.T., Berthot, J., ...

We measured the cross section and response functions (R_L, R_T, and R_LT) for the 16O(e,e'p) reaction in quasielastic kinematics for missing energies 25

Recoil-proton polarization in high-energy deuteron photodisintegration with circularly polarized photons (2007)

Jiang, X., Arrington, J., Benmokhtar, F., Camsonne, A., Chen, J. P., Choi, S., ...

We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark...

Compton Scattering Cross Section on the Proton at High Momentum Transfer (2007)

Danagoulian, A., H. Mamyan, V., Roedelbronn, M., A. Aniol, K., Bertin, P.Y., ...

Cross-section values for Compton scattering on the proton were measured at 25 kinematic settings over the range s = 5-11 and -t = 2-7 GeV2 with statistical accuracy of a few percent. The scaling...

Observation of a resonance in the K$_S$p decay channel at a mass of 1765 Mev/c$^2$ (2007)

Adamovich, M.I., Alexandrov, Y.A., Baranov, S.P., Barberis, D., Beck, M., Bérat, C., ...

We report on the observation of a K$_S$p resonance signal at a mass of 1765 ± 5 MeV/c/$^ $2, with intrinsic width Γ = 108 ± 22 MeV/c$^2$, produced inclusively in Σ$^-$-nucleus...

Polarization Transfer in Proton Compton Scattering at High Momentum Transfer (2007)

J. Hamilton, D., H. Mamyan, V., A. Aniol, K., Y. Bertin, P., Bimbot, L., ...

Compton scattering from the proton was investigated at s =(6.9 GeV)**2 and t = (-4.0 GeV)**2 via polarization transfer from circularly polarized incident photons. The longitudinal and transverse...

The electromagnetic calorimeter in JLab Real Compton Scattering Experiment (2007)

Shahinyan, A., Chudakov, E., Danagoulian, A., Degtyarenko, P., Egiyan, K., ...

A hodoscope calorimeter comprising of 704 lead-glass blocks is described. The calorimeter was constructed for use in the JLab Real Compton Scattering experiment. The detector provides a measurement...

Precision Measurements of the Nucleon Strange Form Factors at Q^2 ~0.1 GeV^2 (2007)

Acha, A., Aniol, K.A., Armstrong, D.S., Arrington, J., Averett, T., Bailey, S., ...

We report new measurements of the parity-violating asymmetry A_PV in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with ~6.0 degrees. The 4He result is A_PV = (+6.40 +/- 0.23...

Investigation of proton-proton short-range correlations via the $^{12}$C(e,e'pp) reaction (2007)

Shneor, R., Monaghan, P., Subedi, R., D. Anderson, B., Aniol, K., Annand, J., ...

We investigated simultaneously the 12C(e,e'p) and 12C(e,e'pp) reactions at Q2 = 2 [GeV/c]2, x_B = 1.2, and in an (e,e'p) missing-momentum range from 300 to 600 MeV/c. At these kinematics, with a...

Precision Measurement of the Neutron Spin Asymmetries and Spin-dependent Structure Functions in the Valence Quark Region (2007)

Zheng, X., Aniol, K., S. Armstrong, D., D. Averett, T., Bertozzi, W., Binet, S., ...

We report on measurements of the neutron spin asymmetries $A_{1,2}^n$ and polarized structure functions $g_{1,2}^n$ at three kinematics in the deep inelastic region, with $x=0.33$, 0.47 and 0.60 and...

Precision Rosenbluth measurement of the proton elastic form factors (2007)

Qattan, I. A., Arrington, J., Segel, R. E., Zheng, X., Aniol, K., Baker, O. K., ...

We report the results of a new Rosenbluth measurement of the proton form factors at Q^2 values of 2.64, 3.20 and 4.10 GeV^2. Cross sections were determined by detecting the recoiling proton in...

Observation of a resonance in the K$_s$p decay channel at a mass of 1765 MeV/c$^2$ (2007)

Adamovich, M. I., Alexandrov, Yu. A., Barberis, D., Beck, M., Bérat, C., ...

We report on the observation of a K$_s$p resonance signal at a mass of 1765$\pm$5 MeV/c$^2$, with intrinsic width $\Gamma = 108\pm 22$ MeV/c$^2$, produced inclusively in $\Sigma^-$-nucleus...

Recoil Polarization Measurements for Neutral Pion Electroproduction at $Q^2$=1 (GeV/c)$^2$ Near the $\Delta$ Resonance (2007)

J. Kelly, J., Gayou, O., E. Roché, R., Chai, Z., K. Jones, M., J. Sarty, A., ...

We measured angular distributions of differential cross section, beam analyzing power, and recoil polarization for neutral pion electroproduction at Q^2 = 1.0 (GeV/c)^2 in 10 bins of W across the...

Angular dependence of recoil proton polarization in high-energy \gamma d \to p n (2007)

Jiang, X., Arrington, J., Benmokhtar, F., Camsonne, A., Chen, J. P., Choi, S., ...

We measured the angular dependence of the three recoil proton polarization components in two-body photodisintegration of the deuteron at a photon energy of 2 GeV. These new data provide a benchmark...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2007)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Scaling tests of the cross section for deeply virtual compton scattering (2007)

Munoz Camacho, C., Camsonne, A., Mazouz, M., Ferdi, C., Gavalian, G., Kuchina, E., ...

We present the first measurements of \vec{e}p->epg cross section in the deep virtual Compton scattering (DVCS) regime and the valence quark region (x_{Bj}=0.36). From JLab E00-110, we extract the...

Measurements of the electron-helicity dependent cross sections of deeply virtual compton scattering with CEBAF at 12 GeV (2006)

Roche, J., Hyde-Wright, C. E., Michel, B., Camacho, C. Munoz, Gavalian, G., Amarian, M., ...

We propose precision measurements of the helicity-dependent and helicity independent cross sections for the ep->epg reaction in Deeply Virtual Compton Scattering (DVCS) kinematics. DVCS scaling is...

A Search for Sigma^0_5, N^0_5 and Theta^++ Pentaquark States (2006)

Qiang, Y., Annand, J., Arrington, J., Azimov, Ya. I., Bertozzi, W., Cates, G., ...

A high-resolution (sigma_instr. = 1.5 MeV) search for narrow states (Gamma < 10 MeV) with masses of M_x approx 1500-1850 MeV in ep -> e'K^+ X, e'K^- X and e' pi^+ X electroproduction at small angles...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ (2006)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons...

Search for the pentaquark candidate $\Theta(1540)^+$ in the hyperon beam experiment WA89 (2006)

Adamovich, M.I., Alexandrov, Yu.A., Baranov, S.P., Barberis, D., Beck, M., Berat, C., ...

We report on a high-statistics search for the \t1540 resonance in $\Sigma^-$-nucleus collisions at 340 \gevc1 . No evidence for this resonance was found in our data sample which contains 13 millions...

Recoil Polarization for Delta Excitation in Pion Electroproduction (2006)

J. Kelly, J., E. Roche, R., Chai, Z., K. Jones, M., Gayou, O., J. Sarty, A., ...

We measured angular distributions of recoil-polarization response functions for neutral pion electroproduction for W=1.23 GeV at Q$^2=1.0 (GeV/c)^2$, obtaining 14 separated response functions plus 2...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Parity-violating electron scattering from $^4$He and the strange electric form factor of the nucleon (2006)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from ^4He at an average scattering angle = 5.7 degrees and a four-momentum transfer Q^2 =...

Measurements of the Electron-Helicity Dependent Cross Sections of Deeply Virtual Compton Scattering with CEBAF at 12 GeV (2006)

Roche, J., Hyde-Wright, C. E., Michel, B., Camacho, C. Munoz, Gavalian, G., Amarian, M., ...

We propose precision measurements of the helicity-dependent and helicity independent cross sections for the ep->epg reaction in Deeply Virtual Compton Scattering (DVCS) kinematics. DVCS scaling is...

Virtual compton scattering in the resonance region up to the deep inelastic region at backward angles and momentum transfer squared of $Q^2$ = 1.0 $GeV^2$ (2005)

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., ...

We have made the first measurements of the virtual Compton scattering process via the e p -> e p gamma exclusive reaction at Q**2 = 1 GeV**2 in the nucleon resonance region. The cross section is...

The Q$^2$-Dependence of the Neutron Spin Structure Function g$_2^n$ at Low Q$^2$ (2005)

Kramer, K., Armstrong, D., Averett, T., Bertozzi, W., Binet, S., Butuceanu, C., ...

We present the first measurement of the Q^2-dependence of the neutron spin structure function g_2^n at five kinematic points covering 0.57 (GeV/c)^2

Search for the pentaquark candidate $\Theta^+$(1540) in the hyperon beam experiment WA89 (2005)

Adamovich, M I, Alexandrov, Yu A, Baranov, S P, Barberis, D, Beck, M, Bérat, C, ...

We report on a high-statistics search for the \t1540 resonance in $\Sigma^-$-nucleus collisions at 340 \gevc1 . No evidence for this resonance was found in our data sample which contains 13 millions...

The dynamics of the quasielastic $^{16}O$(e,e'p) reaction at $Q^2$ $\approx$ 0.8 (GeV/c)$^2$ (2005)

G. Fissum, K., Liang, M., D. Anderson, B., A. Aniol, K., Auerbach, L., T. Baker, F., ...

The physics program in Hall A at Jefferson Lab commenced in the summer of 1997 with a detailed investigation of the 16O(e,e'p) reaction in quasielastic, constant (q,w) kinematics at Q^2 ~ 0.8...

Measurement of the generalized polarizabilities of the proton in virtual compton scattering at $Q^2$ = 0.92 and 1.76 Gev$^2$ (2005)

Laveissiere, G., Todor, L., Degrande, N., Jaminion, S., Jutier, C., Di Salvo, R., ...

We report a Virtual Compton Scattering study of the proton in Hall A at the Thomas Jefferson National Accelerator Facility at low CM energies. We have determined the structure functions...

Proton elastic form factor ratios to $Q^2$=3.5 GeV$^2$ by polarization transfer (2005)

Punjabi, V., Perdrisat, C.F., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., ...

The ratio of the proton elastic electromagnetic form factors, $G_{Ep}/G_{Mp}$, was obtained by measuring $P_{t}$ and $P_{\ell}$, the transverse and longitudinal recoil proton polarization components,...

Quasielastic $^{3}He(e,e'p)^{2}H$ reaction at Q2=1.5 GeV2 for recoil momenta up to 1 GeV/c (2005)

Rvachev, M.M., Benmokhtar, F., Penel-Nottaris, E., Aniol, K.A., Bertozzi, W., Boeglin, W.U., ...

We have studied the quasielastic $^{3}He(e,e'p)^{2}H$ reaction in perpendicular coplanar kinematics, with the energy and the momentum transferred by the electron fixed at 840 MeV and 1502 MeV/c,...

Measurement of the 3He(e,e'p)pn reaction at high missing energies and momenta (2005)

Benmokhtar, F., Rvachev, M.M., Penel-Nottaris, E., Aniol, K.A., Bertozzi, W., Boeglin, W.U., ...

Results of the Jefferson Lab Hall A quasielastic 3He(e,e'p)pn measurements are presented. These measurements were performed at fixed transferred momentum and energy, q = 1502 MeV/c and omega = 840...

Constraints on the nucleon strange form factors at $Q^2 \sim 0.1 GeV^2$ (2005)

Aniol, K., Armstrong, D., Averett, T., Benaoum, H., Bertin, P., Burtin, E., ...

We report the most precise measurement to date of a parity-violating asymmetry in elastic electron-proton scattering. The measurement was carried out with a beam energy of 3.03 GeV and a scattering...

Search for the pentaquark candidate $\Theta(1540)^+$ in the hyperon beam experiment WA89 (2005)

Adamovich, M.I., Alexandrov, Yu.A., Baranov, S.P., Barberis, D., Beck, M., Berat, C., ...

We report on a high-statistics search for the \t1540 resonance in $\Sigma^-$-nucleus collisions at 340 \gevc1 . No evidence for this resonance was found in our data sample which contains 13 millions...