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1. Basic instrumentation for Hall A at Jefferson Lab

Author

Alcorn, J., Anderson, B.D., Aniol, K.A., Annand, J.R.M., Auerbach, L., Arrington, J., Averett, T., Baker, F.T., Baylac, M., Beise, E.J., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Black, T., Boeglin, W.U., Boykin, D.V., Brash, E.J., Breton, V., Breuer, H., Brindza, P., Brown, D., Burtin, E., Calarco, J.R., Cardman, L.S., Carr, R., Cates, G.D., Cavata, C., Chai, Z., Chang, C.C., Chant, N.S., Chen, J.-P., Choi, S., Chudakov, E., Churchwell, S., Coman, M., Cisbani, E., Colilli, S., Colombel, N., Crateri, R., Dale, D.S., Degrande, N., de Jager, C.W., De Leo, R., Deur, A., Dezern, G., Diederich, B., Dieterich, S., di Salvo, R., Djawotho, P., Domingo, J., Ducret, J.-E., Dutta, D., Egiyan, K., Epstein, M.B., Escoffier, S., Esp, S., Ewell, L.A., Finn, J.M., Fissum, K.G., Folts, E., Fonvieille, H., Frois, B., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gavalya, A., Gayou, O., Gilad, S., Gilman, R., Giuliani, F., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Gorringe, T., Gricia, M., Griffioen, K., Hamilton, D., Hansen, J.-O., Hersman, F.W., Higinbotham, D.W., Holmes, R., Holmgren, H., Holtrop, M., d'Hose, N., Hovhannisyan, E., Howell, C., Huber, G.M., Hughes, E., Hyde-Wright, C.E., Ibrahim, H., Incerti, S., Iodice, M., Iommi, R., Ireland, D., Jaminion, S., Jardillier, J., Jensen, S., Jiang, X., Jones, C.E., Jones, M.K., Joo, K., Jutier, C., Kahl, W., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khandaker, M., Khayat, M., Kino, K., Kominis, I., Korsch, W., Kox, S., Kramer, K., Kumar, K.S., Kumbartzki, G., Kuss, M., Lagamba, L., Laveissière, G., Leone, A., LeRose, J.J., Marie, F., Levchuk, L., Leuschner, M., Lhuillier, D., Liang, M., Livingston, K., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Lucentini, M., Madey, R., Maeda, K., Malov, S., Manley, D.M., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martine, J., Mayilyan, S., McCarthy, J.S., McCormick, K., Mclntyre, J., McKeown, R.D., Meekins, D., van der Meer, R.L.J., Meziani, Z.-E., Michaels, R., Milbrath, B., Miller, J.A., Miller, W., Mitchell, J., Mougey, J., Nanda, S., Nathan, A., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Perdrisat, C.F., Perrino, R., Petratos, G.G., Petrosyan, A., Pierangeli, L., Platchkov, S., Pomatsalyuk, R., Pripstein, D., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransomez, R.D., Ravel, O., Reitz, B., Roblin, Y., Roche, R., Roedelbronn, M., Rondon-Aramayo, O.A., Roos, P.G., Rosner, G., Rowntree, D., Rutledge, G.A., Rutt, P.M., Rvachev, M., Sabatavenere, F., Saha, A., Saito, T., Santavenere, F., Sarty, A.J., Schneider, W.J., Segal, J.P., Serdarevic-Offermann, A., Shahinyan, A., Slifer, K., Smith, T.P., Soldi, A., Sorokin, P., Souder, P., Spiegel, S.L., Stevens, M.A., Strauch, S., Suleiman, R., Templon, J.A., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Van Hoorebeke, L., Van de Vyver, R., van Verst, S., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Walter, R., Watson, J.W., Watts, D.P., Weinstein, L.B., Wijesooriya, K., Wojtsekhowski, B., Xiang, H., Xiong, F., Xu, W., Zainea, D.G., Zeps, V., Zhao, J., Zheng, X., Zhou, Z.-L., Zhu, L., and Zolnierczuk, P.A.

Published
2004
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4. The HARP liquid hydrogen system

Author

van Uden, M.A., van der Meer, R.L.J., Bauer, Th.S., Bron, M., Buis, R., de Groen, P.J.M., Lefevere, Y., Nooren, G.J.L., Postma, H., van der Steenhoven, G., and Willering, H.W.

Published
1999
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5. Proton elastic form factor ratios to $Q^2$=3.5 GeV$^2$ by polarization transfer

Author

Punjabi, V., Perdrisat, C.F., Aniol, K.A., Baker, F.T., Berthot, J., Bertin, P.Y., Bertozzi, W., Besson, A., Bimbot, L., Boeglin, W.U., Brash, E.J., Brown, D., Calarco, J.R., Cardman, L.S., Chai, Z., Chang, C.-C., Chen, J.-P., Chudakov, E., Churchwell, S., Cisbani, E., Dale, D.S., De Leo, R., Deur, A., Diederich, B., Domingo, J.J., Epstein, M.B., Ewell, L.A., G. Fissum, K., Fleck, A., Fonvieille, H., Frullani, S., Gao, J., Garibaldi, F., Gasparian, A., Gerstner, G., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Green, A., Hansen, J.-O., Howell, C.R., Huber, G.M., Iodice, M., De Jager, C.W., Jaminion, S., Jiang, X., Jones, M.K., Kahl, W., Kelly, J.J., Khayat, M., Kramer, L.H., Kumbartzki, G., Kuss, M., Lakuriki, E., Laveissière, G., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Macri, R., Madey, R., Malov, S., Margaziotis, D.J., Markowitz, P., McCormick, K., McIntyre, J.I., Van Der Meer, R.L.J., Michaels, R., Milbrath, B.D., Mougey, J.Y., Nanda, S.K., Offermann, E.A.J.M., Papandreou, Z., Pentchev, L., Petratos, G.G., Piskunov, N.M., Pomatsalyuk, R.I., Prout, D.L., Quéméner, G., Ransome, R.D., Raue, B.A., Roblin, Y., Roche, R., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Smith, T.P., Sorokin, P., Strauch, S., Suleiman, R., Takahashi, K., Templon, J.A., Todor, L., Ulmer, P.E., Urciuoli, G.M., Vernin, P., Vlahovic, B., Voskanyan, H., Wijesooriya, K., Wojtsekhowski, B.B., Woo, R.J., Xiong, F., Zainea, G.D., Zhou, Z.-L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
electron-proton scattering, protons, polarisation in elementary particle interactions, electromagnetic form factors, FOS: Physical sciences, 25.30.Bf, 13.40.Gp, 24.85.+p, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

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, respectively, for the elastic $\vec e p \to e\vec p$ ~reaction in the four-momentum transfer squared range of 0.5 to 3.5 GeV$^2$. In the single-photon exchange approximation, the ratio $G_{Ep}/G_{Mp}$ is directly proportional to the ratio $P_t/P_{\ell}$. The simultaneous measurement of $P_{t}$ and $P_{\ell}$ in a polarimeter reduces systematic uncertainties. The results for the ratio $G_{Ep}/G_{Mp}$ show a systematic decrease with increasing $Q^2$, indicating for the first time a definite difference in the distribution of charge and magnetization in the proton. The data have been re-analyzed and systematic uncertainties have become significantly smaller than previously published results., Comment: 31 pages, 29 gfigures, submitted to Phys. Rev. C

Published
2005
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6. 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 $GeV^2$

Author

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., Van Hoorebeke, L., Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Audit, G., Auerbach, L., Baker, F.T., Baylac, M., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Boeglin, W.U., Brash, E.J., BRETON, Vincent, Breuer, H., Burtin, E., Calarco, J.R., Cardman, L.S., Cavata, C., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Dale, D.S., De Jager, C.W., De Leo, R., Deur, A., D'Hose, N., Dodge, G.E., Domingo, J.J., Elouadrhiri, L., Epstein, M.B., Ewell, L.A., Finn, J.M., Fissum, K.G., Fonvieille, H., Fournier, G., Frois, B., Frullani, S., Furget, C., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Grenier, P., Guichon, P.A.M., Hansen, J.O., Holmes, R., Holtrop, M., Howell, C., Huber, G.M., Hyde-Wright, C.E., Incerti, S., Iodice, M., Jardillier, J., Jones, M.K., Kahl, W., Kamalov, S., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khayat, M., Kino, K., Kox, S., Kramer, L.H., Kumar, K.S., Kumbartzki, G., Kuss, M., Leone, A., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Madey, R., Maeda, K., Malov, S., Manley, D.M., Marchand, C., Marchand, D., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C.J., McCormick, K., McIntyre, J., Mehrabyan, S., Merchez, F., Meziani, Z.E., Michaels, R., Miller, G.W., Mougey, J.Y., Nanda, S.K., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Perdrisat, C.F., Perrino, R., Petratos, G.G., Platchkov, S., Pomatsalyuk, R., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransome, R.D., Ravel, O., Real, J.S., Renard, F., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Serdarevic, A., Smith, T., Smirnov, George, Soldi, K., Sorokin, P., Souder, P.A., Suleiman, R., Templon, J.A., Terasawa, T., Tiator, L., Tieulent, R., Tomasi-Gustaffson, E., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Van De Vyver, R., Van Der Meer, R.L.J., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Watson, J.W., Weinstein, L.B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B.B., Zainea, D.G., Zhang, W.M., Zhao, J., Zhou, Z.L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
High Energy Physics - Experiment (hep-ex), 13.60.-r, 13.60.Fz, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract

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 obtained at center of mass (CM) backward angle, theta_gamma_gamma*, in a range of total (gamma* p) CM energy W from the proton mass up to W = 1.91 GeV. The data show resonant structures in the first and second resonance regions, and are well reproduced at higher W by the Bethe-Heitler+Born cross section, including t-channel pi0-exchange. At high W, our data, together with existing real photon data, show a striking Q**2 independence. Our measurement of the ratio of H(e,e'p)gamma to H(e,e'p)pi0 cross sections is presented and compared to model predictions., 6 pages, 5 figures, Bibtex format, to be submitted to Physical Review Letters includes cross section tables

Published
2004

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

Author

Laveissiere, G., Todor, L., Degrande, N., Jaminion, S., Jutier, C., Di Salvo, R., Van Hoorebeke, L., Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Audit, G., Auerbach, L., Baker, F.T., Baylac, M., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Boeglin, W.U., Brash, E.J., BRETON, Vincent, Breuer, H., Burtin, E., Calarco, J.R., Cardman, L.S., Cavata, C., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Dale, D.S., De Jager, C.W., De Leo, R., Deur, A., D'Hose, N., Dodge, G.E., Domingo, J.J., Elouadrhiri, L., Epstein, M.B., Ewell, L.A., Finn, J.M., Fissum, K.G., Fonvieille, H., Fournier, G., Frois, B., Frullani, S., Furget, C., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Grenier, P., Guichon, P.A.M., Hansen, J.O., Holmes, R., Holtrop, M., Howell, C., Huber, G.M., Hyde-Wright, C.E., Incerti, S., Iodice, M., Jardillier, J., Jones, M.K., Kahl, W., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khayat, M., Kino, K., Kox, S., Kramer, L.H., Kumar, K.S., Kumbartzki, G., Kuss, M., Leone, A., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Madey, R., Maeda, K., Malov, S., Manley, D.M., Marchand, C., Marchand, D., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C.J., McCormick, K., McIntyre, J., Mehrabyan, S., Merchez, F., Meziani, Z.E., Michaels, R., Miller, G.W., Mougey, J.Y., Nanda, S.K., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Perdrisat, C.F., Perrino, R., Petratos, G.G., Platchkov, S., Pomatsalyuk, R., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransome, R.D., Ravel, O., Real, J.S., Renard, F., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Serdarevic, A., Smith, T., Smirnov, George, Soldi, K., Sorokin, P., Souder, P.A., Suleiman, R., Templon, J.A., Terasawa, T., Tieulent, R., Tomasi-Gustaffson, E., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Van De Vyver, R., Van Der Meer, R.L.J., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Watson, J.W., Weinstein, L.B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B.B., Zainea, D.G., Zhang, W.M., Zhao, J., Zhou, Z.L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), 13.60.Fz, Elastic and Compton scattering, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Physics::Accelerator Physics
Abstract

We report a Virtual Compton Scattering study of the proton at low CM energies. We have determined the structure functions $P_{LL}-P_{TT}/\epsilon$ and $P_{LT}$, and the electric and magnetic Generalized Polarizabilities (GPs) $\alpha_E(Q2)$ and $\beta_M(Q2)$ at momentum transfer Q2= 0.92 and 1.76 GeV2. The electric GP shows a strong fall-off with Q2, and its global behavior does not follow a simple dipole form. The magnetic GP shows a rise and then a fall-off; this can be interpreted as the dominance of a long-distance diamagnetic pion cloud at low Q2, compensated at higher Q2 by a paramagnetic contribution from $\pi N$ intermediate states., Comment: 4 pages, 2 Figs. Version for PRL after PRL cancelled their request for reducing length of paper

Published
2004
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8. Backward electroproduction of $\pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$

Author

Laveissiere, G., Degrande, N., Jaminion, S., Jutier, C., Todor, L., Di Salvo, R., Van Hoorebeke, L., Alexa Stony, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Audit, G., Auerbach, L., Baker, F.T., Baylac, M., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Boeglin, W.U., Brash, E.J., BRETON, Vincent, Breuer, H., Burtin, E., Calarco, J.R., Cardman, L.S., Cavata, C., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Dale, D.S., De Jager, C.W., De Leo, R., Deur, A., D'Hose, N., Dodge, G.E., Domingo, J.J., Elouadrhiri, L., Epstein, M.B., Ewell, L.A., Finn, J.M., Fissum, K.G., Fonvieille, H., Fournier, G., Frois, B., Frullani, S., Furget, C., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Grenier, P., Guichon, P.A.M., Hansen, J.O., Holmes, R., Holtrop, M., Howell, C., Huber, G.M., Hyde-Wright, C.E., Incerti, S., Iodice, M., Jardillier, J., Jones, M.K., Kahl, W., Kamalov, S., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khayat, M., Kino, K., Kox, S., Kramer, L.H., Kumar, K.S., Kumbartzki, G., Kuss, M., Leone, A., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Madey, R., Maeda, K., Malov, S., Manley, D.M., Marchand, C., Marchand, D., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C.J., McCormick, K., McIntyre, J., Mehrabyan, S., Merchez, F., Meziani, Z.E., Michaels, R., Miller, G.W., Mougey, J.Y., Nanda, S.K., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Perdrisat, C.F., Perrino, R., Petratos, G.G., Platchkov, S., Pomatsalyuk, R., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransome, R.D., Ravel, O., Real, J.S., Renard, F., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Serdarevic, A., Smith, T., Smirnov, George, Soldi, K., Sorokin, P., Souder, P.A., Suleiman, R., Templon, J.A., Terasawa, T., Tiator, L., Tieulent, R., Tomasi-Gustaffson, E., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Van De Vyver, R., Van Der Meer, R.L.J., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Watson, J.W., Weinstein, L.B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B.B., Zainea, D.G., Zhang, W.M., Zhao, J., Zhou, Z.L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
electron-proton interactions, 13.60.Le, 14.20.Gk, Nuclear Theory, pion production, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, hadron electroproduction, Nuclear Experiment
Abstract

PHASE; International audience; 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 from the 4 GeV electron beam in Jefferson Lab's Hall A. The data span the range of the total (gamma*p) center-of-mass energy W from the pion production threshold to W=2.0 GeV. The differential cross sections sigmaT+epsilonsigmaL, sigmaTL, and sigmaTT were separated from the azimuthal distribution and are presented together with the MAID and SAID parametrizations.

Published
2004
Full Text
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9. Measurement of the generalized polarizabilities of the proton in virtual compton scattering at $Q^2=0.92 and 1.76 GeV^2$: II. Dispersion relation analysis

Author

Laveissiere, G., Todor, L., Degrande, N., Jaminion, S., Jutier, C., Di Salvo, R., Van Hoorebeke, L., Alexa, L.C., Anderson, B.D., Aniol, K.A., Arundell, K., Audit, G., Auerbach, L., Baker, F.T., Baylac, M., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Boeglin, W.U., Brash, E.J., BRETON, Vincent, Breuer, H., Burtin, E., Calarco, J.R., Cardman, L.S., Cavata, C., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Dale, D.S., De Jager, C.W., De Leo, R., Deur, A., D'Hose, N., Dodge, G.E., Domingo, J.J., Elouadrhiri, L., Epstein, M.B., Ewell, L.A., Finn, J.M., Fissum, K.G., Fonvieille, H., Fournier, G., Frois, B., Frullani, S., Furget, C., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Grenier, P., Guichon, P.A.M., Hansen, J.O., Holmes, R., Holtrop, M., Howell, C., Huber, G.M., Hyde-Wright, C.E., Incerti, S., Iodice, M., Jardillier, J., Jones, M.K., Kahl, W., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khayat, M., Kino, K., Kox, S., Kramer, L.H., Kumar, K.S., Kumbartzki, G., Kuss, M., Leone, A., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Madey, R., Maeda, K., Malov, S., Manley, D.M., Marchand, C., Marchand, D., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C.J., McCormick, K., McIntyre, J., Mehrabyan, S., Merchez, F., Meziani, Z.E., Michaels, R., Miller, G.W., Mougey, J.Y., Nanda, S.K., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Pasquini, B., Perdrisat, C.F., Perrino, R., Petratos, G.G., Platchkov, S., Pomatsalyuk, R., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransome, R.D., Ravel, O., Real, J.S., Renard, F., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Serdarevic, A., Smith, T., Smirnov, George, Soldi, K., Sorokin, P., Souder, P.A., Suleiman, R., Templon, J.A., Terasawa, T., Tieulent, R., Tomasi-Gustaffson, E., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Vanderhaeghen, M., Van De Vyver, R., Van Der Meer, R.L.J., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Watson, J.W., Weinstein, L.B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B.B., Zainea, D.G., Zhang, W.M., Zhao, J., Zhou, Z.L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

PHASE

Published
2004

10. Measurement of the generalized polarizabilities of the proton in virtual compton scattering at $Q^2=0.92 and 1.76 GeV^2$: I. Low energy expansion analysis

Author

Jaminion, S., Degrande, N., Laveissiere, G., Jutier, C., Todor, L., Di Salvo, R., Van Hoorebeke, L., Alexa, S., Anderson, B.D., Aniol, K.A., Arundell, K., Audit, G., Auerbach, L., Baker, F.T., Baylac, M., Berthot, J., Bertin, P.Y., Bertozzi, W., Bimbot, L., Boeglin, W.U., Brash, E.J., BRETON, Vincent, Breuer, H., Burtin, E., Calarco, J.R., Cardman, L.S., Cavata, C., Chang, C.C., Chen, J.P., Chudakov, E., Cisbani, E., Dale, D.S., De Jager, C.W., De Leo, R., Deur, A., D'Hose, N., Dodge, G.E., Domingo, J.J., Elouadrhiri, L., Epstein, M.B., Ewell, L.A., Finn, J.M., Fissum, K.G., Fonvieille, H., Fournier, G., Frois, B., Frullani, S., Furget, C., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Grenier, P., Guichon, P.A.M., Hansen, J.O., Holmes, R., Holtrop, M., Howell, C., Huber, G.M., Hyde-Wright, C.E., Incerti, S., Iodice, M., Jardillier, J., Jones, M.K., Kahl, W., Kato, S., Katramatou, A.T., Kelly, J.J., Kerhoas, S., Ketikyan, A., Khayat, M., Kino, K., Kox, S., Kramer, L.H., Kumar, K.S., Kumbartzki, G., Kuss, M., Leone, A., LeRose, J.J., Liang, M., Lindgren, R.A., Liyanage, N., Lolos, G.J., Lourie, R.W., Madey, R., Maeda, K., Malov, S., Manley, D.M., Marchand, C., Marchand, D., Margaziotis, D.J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C.J., McCormick, K., McIntyre, J., Mehrabyan, S., Merchez, F., Meziani, Z.E., Michaels, R., Miller, G.W., Mougey, J.Y., Nanda, S.K., Neyret, D., Offermann, E.A.J.M., Papandreou, Z., Perdrisat, C.F., Perrino, R., Petratos, G.G., Platchkov, S., Pomatsalyuk, R., Prout, D.L., Punjabi, V.A., Pussieux, T., Quéméner, G., Ransome, R.D., Ravel, O., Real, J.S., Renard, F., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P.M., Saha, A., Saito, T., Sarty, A.J., Serdarevic, A., Smith, T., Smirnov, George, Soldi, K., Sorokin, P., Souder, P.A., Suleiman, R., Templon, J.A., Terasawa, T., Tieulent, R., Tomasi-Gustaffson, E., Tsubota, H., Ueno, H., Ulmer, P.E., Urciuoli, G.M., Van De Vyver, R., Van Der Meer, R.L.J., Vernin, P., Vlahovic, B., Voskanyan, H., Voutier, E., Watson, J.W., Weinstein, L.B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B.B., Zainea, D.G., Zhang, W.M., Zhao, J., Zhou, Z.L., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HALL A, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract

PHASE

Published
2004

13. Interstellar X-ray absorption spectroscopy of oxygen, neon, and iron with the CHANDRA LETGS Spectrum of X0614+091

Author

Paerels, F., Brinkman, A.C., van der Meer, R.L.J., Kaastra, J.S., Kuulkers, E., den Boggende, A.J.F., Predehl, P., Drake, J.J., Kahn, S.M., Savin, D.W., McLaughlin, B.M., Astrophysics, Universiteit Utrecht, and Dep Natuurkunde

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Published
2001

14. Charged pion form factor between Q2=0.60 and 2.45 GeV2. II. Determination of, and results for, the pion form factor

Author

Huber, G.M., Huber, G.M., Blok, H.P., Horn, T., Beise, E.J., Gaskell, D., Mack, D.J., Tadevosyan, V., Volmer, J., Abbott, D., Aniol, K., Anklin, H., Armstrong, C., Arrington, J., Assamagan, K., Avery, S., Baker, O.K., Barrett, B., Bochna, C., Boeglin, W., Brash, E.J., Breuer, H., Chang, C.C., Chant, N., Christy, M.E., Dunne, J., Eden, T., Ent, R., Fenker, H., Gibson, E.F., Gilman, R., Gustafsson, K., Hinton, W., Holt, J., Jackson, H., Jin, S., Jones, M.K., Keppel, C.E., Kim, P.H., Kim, W., King, P.M., Klein, A., Koltenuk, D., Kovaltchouk, V., Liang, M., Liu, J., Lolos, G.J., Lung, A., Margaziotis, D.J., Markowitz, P., Matsumura, A., McKee, D., Meekins, D., Mitchell, J., Miyoshi, T., Mkrtchyan, H., Mueller, B., Niculescu, G., Niculescu, I., Okayasu, Y., Pentchev, L., Perdrisat, C., Pitz, D., Potterveld, D., Punjabi, V., Qin, L.M., Reimer, P.E., Reinhold, J., Roche, J., Roos, P.G., Sarty, A., Shin, I.K., Smith, G.R., Stepanyan, S., Tang, L.G., Tvaskis, V., van der Meer, R.L.J., Vansyoc, K., VanWestrum, D., Vidakovic, S., Vulcan, W., Warren, G., Wood, S.A., Xu, C., Yan, C., Zhao, W.-X., Zheng, X., Zihlmann, B., The Jefferson Lab Fπ Collaboration, Huber, G.M., Huber, G.M., Blok, H.P., Horn, T., Beise, E.J., Gaskell, D., Mack, D.J., Tadevosyan, V., Volmer, J., Abbott, D., Aniol, K., Anklin, H., Armstrong, C., Arrington, J., Assamagan, K., Avery, S., Baker, O.K., Barrett, B., Bochna, C., Boeglin, W., Brash, E.J., Breuer, H., Chang, C.C., Chant, N., Christy, M.E., Dunne, J., Eden, T., Ent, R., Fenker, H., Gibson, E.F., Gilman, R., Gustafsson, K., Hinton, W., Holt, J., Jackson, H., Jin, S., Jones, M.K., Keppel, C.E., Kim, P.H., Kim, W., King, P.M., Klein, A., Koltenuk, D., Kovaltchouk, V., Liang, M., Liu, J., Lolos, G.J., Lung, A., Margaziotis, D.J., Markowitz, P., Matsumura, A., McKee, D., Meekins, D., Mitchell, J., Miyoshi, T., Mkrtchyan, H., Mueller, B., Niculescu, G., Niculescu, I., Okayasu, Y., Pentchev, L., Perdrisat, C., Pitz, D., Potterveld, D., Punjabi, V., Qin, L.M., Reimer, P.E., Reinhold, J., Roche, J., Roos, P.G., Sarty, A., Shin, I.K., Smith, G.R., Stepanyan, S., Tang, L.G., Tvaskis, V., van der Meer, R.L.J., Vansyoc, K., VanWestrum, D., Vidakovic, S., Vulcan, W., Warren, G., Wood, S.A., Xu, C., Yan, C., Zhao, W.-X., Zheng, X., Zihlmann, B., and The Jefferson Lab Fπ Collaboration

Abstract

The charged pion form factor, Fπ(Q2), is an important quantity that can be used to advance our knowledge of hadronic structure. However, the extraction of Fπ from data requires a model of the 1H(e,e'π+)n reaction and thus is inherently model dependent. Therefore, a detailed description of the extraction of the charged pion form factor from electroproduction data obtained recently at Jefferson Lab is presented, with particular focus given to the dominant uncertainties in this procedure. Results for Fπ are presented for Q2=0.60-2.45 GeV2. Above Q2=1.5 GeV2, the Fπ values are systematically below the monopole parametrization that describes the low Q2 data used to determine the pion charge radius. The pion form factor can be calculated in a wide variety of theoretical approaches, and the experimental results are compared to a number of calculations. This comparison is helpful in understanding the role of soft versus hard contributions to hadronic structure in the intermediate Q2 regime.

Published
2008

17. Interstellar X-ray absorption spectroscopy of oxygen, neon, and iron with the CHANDRA LETGS Spectrum of X0614+091

Author

Astrophysics, Universiteit Utrecht, Dep Natuurkunde, Paerels, F., Brinkman, A.C., van der Meer, R.L.J., Kaastra, J.S., Kuulkers, E., den Boggende, A.J.F., Predehl, P., Drake, J.J., Kahn, S.M., Savin, D.W., McLaughlin, B.M., Astrophysics, Universiteit Utrecht, Dep Natuurkunde, Paerels, F., Brinkman, A.C., van der Meer, R.L.J., Kaastra, J.S., Kuulkers, E., den Boggende, A.J.F., Predehl, P., Drake, J.J., Kahn, S.M., Savin, D.W., and McLaughlin, B.M.

Published
2001

18. Supersonic gas jets as internal targets at NIKHEF

Author

Botto, T, primary, Bouwhuis, M, additional, Dimitroyannis, D, additional, Doets, M, additional, de Jager, C.W, additional, van der Meer, R.L.J, additional, Scharloo, M, additional, de Vries, H, additional, Norum, B.E, additional, and Welch, T.P, additional

Published
1995
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19. Comparison of the (e,e′), (e,e′p) and (γ,p) reactions on 10B

Author

De Bever, L.J., primary, Adler, J.-O., additional, Andersson, B.-E., additional, Blok, H.P., additional, Blouw, J., additional, Bobeldijk, I., additional, Branford, D., additional, Bulychev, S., additional, Cichocki, A., additional, Davison, T., additional, Fujiwara, M., additional, Hicks, R.S., additional, Hosono, K., additional, Ireland, D.G., additional, Isaksson, L., additional, De Jager, C.W., additional, Kalantar-Nayestanaki, N., additional, Kelly, J.J., additional, Kuwamoto, S., additional, Lapikás, L., additional, Livingston, K., additional, Van der Meer, R.L.J., additional, Miskimen, R., additional, Page, R.D., additional, Peterson, G.A., additional, Ruijter, H., additional, Sandell, A., additional, Schröder, B., additional, Shotter, A.C., additional, Van der Steenhoven, G., additional, Takahisa, K., additional, Takamatsu, J., additional, De Vries, H., additional, Wang, K., additional, De Witt Huberts, P.K.A., additional, Woods, P.J., additional, Yosoi, M., additional, and Ziakas, K., additional

Published
1995
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