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2. Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q^2=0.92 and 1.76 GeV^2

Author

Fonvieille, H., 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, V., 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., deJager, 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., 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, 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., 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., Quemener, 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, G., 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 der Meer, R. L. J., Van De Vyver, R., 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., and Zhou, Z. -L.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Virtual Compton Scattering (VCS) on the proton has been studied at Jefferson Lab using the exclusive photon electroproduction reaction (e p --> e p gamma). This paper gives a detailed account of the analysis which has led to the determination of the structure functions P_LL-P_TT/epsilon and P_LT, and the electric and magnetic generalized polarizabilities (GPs) alpha_E(Q^2) and beta_M(Q^2) at values of the four-momentum transfer squared Q^2= 0.92 and 1.76 GeV^2. These data, together with the results of VCS experiments at lower momenta, help building a coherent picture of the electric and magnetic GPs of the proton over the full measured Q^2-range, and point to their non-trivial behavior., Comment: version 2: modified according to PRC Editor's and Referee's recommendations. Archival paper for the E93-050 experiment at JLab Hall A. 28 pages, 23 figures, 5 cross-section tables. To be submitted to Phys.Rev.C

Published
2012
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3. 3He Spin-Dependent Cross Sections and Sum Rules

Author

E94010 Collaboration, Slifer, K., Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., Bertozzi, B., Black, T., Brash, E., Brown, D., Burtin, E., Calarco, J., Cates, G., Chai, Z., Chen, J. -P., Choi, Seonho, Chudakov, E., Atti, C. Ciofi degli, Cisbani, E., de Jager, C. W., Deur, A., DiSalvo, R., Dieterich, S., Djawotho, P., Finn, M., Fissum, K., Fonvieille, H., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Glockle, W., Golak, J., Goldberg, E., Gomez, J., Gorbenko, V., Hansen, J. -O., Hersman, B., Holmes, R., Huber, G. M., Hughes, E., Humensky, B., Incerti, S., Iodice, M., Jensen, S., Jiang, X., Jones, C., Jones, G., Jones, M., Jutier, C., Kamada, H., Ketikyan, A., Kominis, I., Korsch, W., Kramer, K., Kumar, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Laveissiere, G., Lerose, J. J., Liang, M., Liyanage, N., Lolos, G., Malov, S., Marroncle, J., McCormick, K., McKeown, R. D., Meziani, Z. -E., Michaels, R., Mitchell, J., Nogga, A., Pace, E., Papandreou, Z., Pavlin, T., Petratos, G. G., Pripstein, D., Prout, D., Ransome, R., Roblin, Y., Rowntree, D., Rvachev, M., Sabatie, F., Saha, A., Salme, G., Scopetta, S., Skibinski, R., Souder, P., Saito, T., Strauch, S., Suleiman, R., Takahashi, K., Teijiro, S., Todor, L., Tsubota, H., Ueno, H., Urciuoli, G., Van der Meer, R., Vernin, P., Voskanian, H., Witala, H., Wojtsekhowski, B., Xiong, F., Xu, W., Yang, J. -C., Zhang, B., and Zolnierczuk, P.

Subjects
Nuclear Experiment
Abstract

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 spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt--Cottingham and extended GDH sum rules for the first time. Impulse approximation and exact three-body Faddeev calculations are also compared to the data in the quasielastic region., Comment: Final version

Published
2008
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4. Photoproduction of neutral kaons on the liquid deuterium target in the threshold region

Author

Tsukada, K., Takahashi, T., Watanabe, T., Fujii, Y., Futatsukawa, K., Hashimoto, O., Hirose, K., Ito, K., Kameoka, S., Kanda, H., Maeda, K., Matsumura, A., Miura, Y., Miyase, H., Nakamura, S. N., Nomura, H., Nonaka, K., Osaka, T., Okayasu, Y., Tamura, H., Tsubota, H., Ukai, M., Yamauchi, H., Wakamatsu, M., Ishikawa, T., Kinoshita, T., Miyahara, F., Nakabayashi, T., Shimizu, H., Tamae, T., Yamazaki, H., Sasaki, A., Konno, O., Bydzovsky, P., and Sotona, M.

Subjects
Nuclear Experiment
Abstract

The photoproduction process of neutral kaons on a liquid deuterium target is investigated near the threshold region, Egamma = 0.8-1.1 GeV. K0 events are reconstructed from positive and negative pions, and differential cross sections are derived. Experimental momentum spectra are compared with those calculated in the spectator model using a realistic deuteron wave function. Elementary amplitudes as given by recent isobar models and a simple phenomenological model are used to study the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(gamma,K0)Lambda process, which provides additional constraints on current models of kaon photoproduction. The present study demonstrates that the n(gamma,K0)Lambda reaction can provide key information on the mechanism of the photoproduction of strangeness., Comment: 11 pages, 13 figures

Published
2007
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5. Photo-production of neutral kaons on 12C in the threshold region

Author

Watanabe, T., Bydžovský, P., Dobashi, K., Endo, S., Fujii, Y., Hashimoto, O., Ishikawa, T., Itoh, K., Kanda, H., Katoh, M., Kinoshita, T., Konno, O., Maeda, K., Matsumura, A., Miyahara, F., Miyase, H., Miyoshi, T., Mizunuma, K., Miura, Y., Nakamura, S. N., Nomura, H., Okayasu, Y., Osaka, T., Oyamada, M., Sasaki, A., Satoh, T., Shimizu, H., Sotona, M., Takahashi, T., Tamae, T., Tamura, H., Terasawa, T., Tsubota, H., Tsukada, K., Ukai, M., Wakamatsu, M., Yamauchi, H., and Yamazaki, H.

Subjects
Nuclear Experiment
Abstract

Kaon photo-production process on $^{12}$C has been studied by measuring neutral kaons in a photon energy range of 0.8$-$1.1 GeV. Neutral kaons were identified by the invariant mass constructed from two charged pions emitted in the $K^{0}_{S}\to\pi^{+}\pi^{-}$ decay channel. The differential cross sections as well as the integrated ones in the threshold photon energy region were obtained. The obtained momentum spectra were compared with a Spectator model calculation using elementary amplitudes of kaon photo-production given by recent isobar models. Present result provides, for the first time, the information on $n(\gamma,K^{0})\Lambda$ reaction which is expected to play an important role to construct models for strangeness production by the electromagnetic interaction. Experimental results show that cross section of $^{12}{\rm C}(\gamma,K^0)$ is of the same order to that of $^{12}{\rm C}(\gamma,K^+)$ and suggest that slightly backward $K^0$ angular distribution is favored in the $\gamma n\to K^0\Lambda$ process., Comment: 6 pages, 8 figures

Published
2006
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6. Measurement of the 6Li(e,e'p) reaction cross sections at low momentum transfer

Author

Hotta, T., Tamae, T., Miura, T., Miyase, H., Nakagawa, I., Suda, T., Sugawara, M., Tadokoro, T., Takahashi, A., Tanaka, E., and Tsubota, H.

Subjects
Nuclear Experiment
Abstract

The triple differential cross sections for the 6Li(e,e'p) reaction have been measured in the excitation energy region from 27 to 46 MeV in a search for evidence of the giant dipole resonance (GDR) in 6Li. The cross sections have no distinct structures in this energy region, and decrease smoothly with the energy transfer. Angular distributions are different from those expected with the GDR. Protons are emitted strongly in the momentum-transfer direction. The data are well reproduced by a DWIA calculation assuming a direct proton knockout process., Comment: 19 pages, 7 figures, revised text, to be published in Nucl. Phys. A

Published
1998
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7. The colonial legacy of herbaria

Author

Xiao Feng, Sepúlveda Cn, Bogaerts A, Thiébaut M, Guggisberg A, Daniel S. Park, Marcucci R, Gogoi R, Vaughan A, Sebola Rj, Whitfeld Tjs, Lee B, Stauffer F, Niezgoda C, Nelson Be, Mwachala G, Sumadijaya A, Cano A, James Sa, Jiří Danihelka, Perkins Kd, Garg A, Jonathan A. Kennedy, Musili P, Komil Ts, Giblin De, Ponce Mj, Paton A, Dongfen Zhang, Zuloaga Fo, Payette S, Shiyan Nm, Bijmoer R, Tsubota H, Rasingam L, Katagiri T, Betancur J, Ardiyani M, Mráz P, Thiers Bm, Belgrano M, Lee Sm, Rainer H, Bjorå Cs, Bärtschi B, Avendaño N, Melnikov D, Akiyama S, Barina Z, James C. Solomon, Marko Hyvärinen, Orli S, Risto Virtanen, Charles C. Davis, Masinde S, Rustiami H, Magri D, and Mulenko W

Subjects
0106 biological sciences, Flora, Biodiversity, Globe, 15. Life on land, Colonialism, 010603 evolutionary biology, 01 natural sciences, Natural history, medicine.anatomical_structure, Geography, Herbarium, medicine, Ethnology, Digitization, Decolonization, 010606 plant biology & botany
Abstract

Herbarium collections shape our understanding of the world’s flora and are crucial for addressing global change and biodiversity conservation. The formation of such natural history collections, however, are not free from sociopolitical issues of immediate relevance. Despite increasing efforts addressing issues of representation and colonialism in natural history collections, herbaria have received comparatively less attention. While it has been noted that the majority of plant specimens are housed in the global North, the extent of this disparity has not been rigorously quantified to date. Here, by analyzing over 85 million specimen records and surveying herbaria across the globe, we assess the colonial legacy of botanical collections and how we may move towards a more inclusive future. We demonstrate that colonial exploitation has contributed to an inverse relationship between where plant biodiversity exists in nature and where it is housed in herbaria. Such disparities persist in herbaria across physical and digital realms despite overt colonialism having ended over half a century ago, suggesting ongoing digitization and decolonization efforts have yet to alleviate colonial-era discrepancies. We emphasize the need for acknowledging the inconvenient history of herbarium collections and the implementation of a more equitable, global paradigm for their collection, curation, and use.

Published
2021

9. 200-MeV bremsstrahlung tagged photon beams at Sendai

Author

Hirose, K., Chiba, M., Inoue, M., Kanda, H., Kimura, R., Kino, K., Kobayashi, Y., Konno, O., Maeda, K., Miyase, H., Miyamoto, A., Ohtsuki, T., Saito, A., Suda, T., Takahashi, K., Tamae, T., Terasaki, Y., Terasawa, T., Tsubota, H., Tsuruta, T., Utoyama, M., Yuuki, H., Yamaguchi, Y., and Yamazaki, H.

Published
2006
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10. K 0 photoproduction on 12C in the threshold region

Author

Watanabe, T., Endo, S., Fujii, Y., Hashimoto, O., Hirose, K., Ishikawa, T., Ito, K., Kanda, H., Katoh, M., Kinoshita, T., Konno, O., Maeda, K., Matsumura, A., Miura, Y., Miyahara, F., Miyase, H., Mizunuma, K., Nakabayashi, T., Nakamura, S.N., Nomura, H., Okayasu, Y., Osaka, T., Otani, A., Oyamada, M., Sasaki, A., Sato, T., Shimizu, H., Takahashi, T., Tamae, T., Tamura, H., Terasawa, T., Tsubota, H., Tsukada, K., Ukai, M., Utoyama, M., Wakamatsu, M., Yamauchi, H., Yamaguchi, Y., Yamamoto, Y., and Yamazaki, H.

Published
2005
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12. 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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13. Measurement of proton–proton bremsstrahlung at 389 MeV

Author

Yasuda, K., Hotta, T., Kato, M., Kawabata, M., Maeda, Y., Matsuoka, N., Matsuzuka, T., Mizuno, Y., Nomachi, M., Noro, T., Sugaya, Y., Takahisa, K., Tamura, K., Yoshida, H.P., Yoshimura, M., Yokota, Y., Yuasa, Y., Imai, K., Murakami, T., Murata, J., Nakagawa, I., Tamae, T., Tsubota, H., and Akiyoshi, H.

Published
2001
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16. 3He Spin-Dependent Cross Sections and Sum Rules

Author

Temple University, Yarevan Physics Institute, Thomas Jefferson National Accelerator Facility, LPC IN2P3/CNRS, Universite´ Blaise Pascal, Massachusetts Institute of Technology, University of Regina, Kharkov Institute of Physics and Technology, University of New Hampshire, California Institute of Technology, Kent State University, Rutgers, The State University of New Jersey, Old Dominion University, INFN, Sezione di Perugia, INFN, Sezione Roma I, M. Smoluchowski Institute of Physics, Jagiellonian University, Syracuse University, Tohoku University, INFN, Sezione Sanita, CEA Saclay,9INFN, Sezione Tor Vergata, Yerevan Physics Institute, Chungnam National University, Princeton University, University of Kentucky, The College of William and Mary, Hampton University, Institut fu¨r Theoretische Physik II, Ruhr Universita¨t Bochum, Temple UniversityINFNSezione di Perugia, INFN, Sezione Sanita1California Institute of Technology, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, University of Massachusetts-Amherst, CEA Saclay, Institut fu¨r Kernphysik, INFN, Sezione Tor Vergata, Slifer, K, Amarian, M, Auerbach, L, Averett, T, Berthot, J, Bertin, P, Bertozzi, B, Black, T, Brash, E, Brown, D, Burtin, R, Nogga, A, Pace, E, Papandreou, Z, Pavlin, T, Petratos, G.G, Pripstein, D, Prout, D, Ransome, R, Roblin, Y, Rowntree, D, Saha, A, Rvachev, M, Sabatie´, F, Salme´, G, Scopetta, S, Skibinski, R, Souder, P, Saito, T, Strauch, S, Suleiman, R, Takahashi, K, Teijiro, S, Ueno, H, Todor, L, Tsubota, H, Urciuoli, G, Van, der Meer R, Vernin, P, Voskanian, H, Witala, H, Wojtsekhowski, B, Xiong, F, Xu, W, Yang, J.-C, Calarco, J, Zhang, B, Zolnierczuk, P, Cates, G, Chai, Z, Chen, J.-P, Choi, Seonho, Chudakov, E, Ciofi, degli Atti C, Cisbani, E, deJager, C.W, Deur, A, DiSalvo, R, Dietorich, S, Djawotho, P, Finn, M, Fissum, K, Fonvieille, H, Frullani, S, Gao, H, Gao, J, Garibaldi, F, Gasparian, A, Gilad, S, Gilman, R, Glamadin, A, Glashausser, C, Glo¨ckle, W, Golak, J, Goldberg, E, Gomez, J, Gorbenko, V, Hansen, J.-O, Hersman, B, Holmes, R, Huber, G.M, Hughes, E, Humensky, B, Incerti, S, Iodice, M, Jensen, S, Jiang, X, Jones, C, Jones, G, Jones, M, Jutier, C, Kamada, H, Ketikyan, A, Kominis, I, Korsch, W, Kramer, K, Kumae, K, Kumbartzki, G, Kuss, M, Lakuriqi, E, Laveissier, G, Lerose, J.J, Liang, M, Liyanage, N, Lolos, G, Malov, S, Marroncle, J, McCormick, K, McKeown, R.D, Meziani, Z.-E, Michaels, R, Mitchell, J, Temple University, Yarevan Physics Institute, Thomas Jefferson National Accelerator Facility, LPC IN2P3/CNRS, Universite´ Blaise Pascal, Massachusetts Institute of Technology, University of Regina, Kharkov Institute of Physics and Technology, University of New Hampshire, California Institute of Technology, Kent State University, Rutgers, The State University of New Jersey, Old Dominion University, INFN, Sezione di Perugia, INFN, Sezione Roma I, M. Smoluchowski Institute of Physics, Jagiellonian University, Syracuse University, Tohoku University, INFN, Sezione Sanita, CEA Saclay,9INFN, Sezione Tor Vergata, Yerevan Physics Institute, Chungnam National University, Princeton University, University of Kentucky, The College of William and Mary, Hampton University, Institut fu¨r Theoretische Physik II, Ruhr Universita¨t Bochum, Temple UniversityINFNSezione di Perugia, INFN, Sezione Sanita1California Institute of Technology, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, University of Massachusetts-Amherst, CEA Saclay, Institut fu¨r Kernphysik, INFN, Sezione Tor Vergata, Slifer, K, Amarian, M, Auerbach, L, Averett, T, Berthot, J, Bertin, P, Bertozzi, B, Black, T, Brash, E, Brown, D, Burtin, R, Nogga, A, Pace, E, Papandreou, Z, Pavlin, T, Petratos, G.G, Pripstein, D, Prout, D, Ransome, R, Roblin, Y, Rowntree, D, Saha, A, Rvachev, M, Sabatie´, F, Salme´, G, Scopetta, S, Skibinski, R, Souder, P, Saito, T, Strauch, S, Suleiman, R, Takahashi, K, Teijiro, S, Ueno, H, Todor, L, Tsubota, H, Urciuoli, G, Van, der Meer R, Vernin, P, Voskanian, H, Witala, H, Wojtsekhowski, B, Xiong, F, Xu, W, Yang, J.-C, Calarco, J, Zhang, B, Zolnierczuk, P, Cates, G, Chai, Z, Chen, J.-P, Choi, Seonho, Chudakov, E, Ciofi, degli Atti C, Cisbani, E, deJager, C.W, Deur, A, DiSalvo, R, Dietorich, S, Djawotho, P, Finn, M, Fissum, K, Fonvieille, H, Frullani, S, Gao, H, Gao, J, Garibaldi, F, Gasparian, A, Gilad, S, Gilman, R, Glamadin, A, Glashausser, C, Glo¨ckle, W, Golak, J, Goldberg, E, Gomez, J, Gorbenko, V, Hansen, J.-O, Hersman, B, Holmes, R, Huber, G.M, Hughes, E, Humensky, B, Incerti, S, Iodice, M, Jensen, S, Jiang, X, Jones, C, Jones, G, Jones, M, Jutier, C, Kamada, H, Ketikyan, A, Kominis, I, Korsch, W, Kramer, K, Kumae, K, Kumbartzki, G, Kuss, M, Lakuriqi, E, Laveissier, G, Lerose, J.J, Liang, M, Liyanage, N, Lolos, G, Malov, S, Marroncle, J, McCormick, K, McKeown, R.D, Meziani, Z.-E, Michaels, R, and Mitchell, J

Abstract

type:Journal Article, We present a measurement of the spin-dependent cross sections for the (3)(He) over right arrow((e) over right arrow ,e')X reaction in the quasielastic and resonance regions at a four-momentum transfer 0.1 <= Q(2)<= 0.9 GeV2. The spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt-Cottingham and extended Gerasimov-Drell-Hearn sum rules for the first time. The data are also compared to an impulse approximation calculation and an exact three-body Faddeev calculation in the quasielastic region., source:https://doi.org/10.1103/PhysRevLett.101.022303, source:http://www.aps.org

Published
2017

19. Study of Strangeness Photo-production in the Threshold Region at LNS-Tohoku(I. Nuclear Physics)

Author

Bydžovský, P., Ejima, M., Fujii, Y., Futatsukawa, K., Hashimoto, O., Hirose, K., Ishikawa, T., Kameoka, S., Kanda, H., Kato, F., Kinoshita, S., Kinoshita, T., Kon, T., Konno, O., Maeda, K., Matsumura, A., Miura, Y., Miyahara, F., Miyase, H., Nakabayashi, T., Nonaka, K., Ohtani, A., Okayasu, Y., Oyamada, M., Sasaki, A., Shimizu, H., Takahashi, T., Tamae, T., Tamura, H., Terasawa, T., Tsubota, H., Tsukada, K., Nakamura, S.N., Nomura, H., Ukai, M., Uchida, D., Yamauchi, H., Yamazaki, H., Yawata, K., Wakamatsu, M., and Watanabe, T.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

We have successfully measured neutral kaons, bombarding a liquid deuterium target with a photon beam in the threshold region from 0.8 to 1.1GeV. It was the first data for K^0 photoproduction on the deuteron in this energy region. The momentum spectra of K^0 production were compared with theoretical spectra calculated assuming isobar models for the elementary process and a realistic deuteron wave function for the target The present experiment has demonstrated a usefulness of the neutral kaon measurement for the investigation of photo strangeness production reactions.

Published
2007

21. A Quasi-free Photo-production of Neutral Kaons on ^<12>C in the Threshold Region(I. Nuclear Physics)

Author

Takahashi, T., Watanabe, T., Bydzovsky, P., Dobashi, K., Endo, S., Fujii, Y., Hashimoto, O., Ishikawa, T., Itoh, K., Kanda, H., Katoh, M., Kinoshita, T., Konno, O., Maeda, K., Matsumura, A., Miyahara, F., Miyase, H., Miyoshi, T., Mizunuma, K., Miura, Y., Nakamura, S. N., Nomura, H., Okayasu, Y., Osaka, T., Oyamada, M., Sasaki, A., Satoh, T., Shimizu, H., Sotona, M., Tamae, T., Tamura, H., Terasawa, H., Tsubota, H., Tsukada, K., Ukai, M., Wakamatsu, M., Yamauchi, H., and Yamazaki, H.

Subjects
Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment
Abstract

A quasi-free photo-production of neutral kaons on ^C has been measured in the threshold region. Neutral kaons were identified by the invariant mass of two charged pions after K_s →π^+π^- decay outside the target. The obtained cross section is almost the same magnitude as that of K^+. The data are also compared with the calculation using the elementary kaon photo-production model. The results are the first information on n(γ, K^0)Λ reaction which is necessary to improve the models.

Published
2004

22. Development of a Liquid Deuterium Target System for the Neutral Kaon Spectrometer(I. Nuclear Physics)

Author

Kanda, H., Dobashi, K., Endo, S., Fujii, Y., Hashimoto, O., Hirose, K., Ishikawa, T., Itoh, K., Katoh, M., Kinoshita, T., Kon, T., Konno, O., Maeda, K., Matsumura, A., Miyahara, F., Miyase, H., Miyoshi, T., Mizunuma, K., Miura, Y., Nakamura, S. N., Nomura, H., Okayasu, Y., Osaka, T., Oyamada, M., Sasaki, A., Satoh, T., Shimizu, H., Takahashi, T., Tamae, T., Tamura, H., Terasawa, T., Tsubota, H., Tsukada, K., Ukai, M., Wakamatsu, M., Watanabe, T., Yamauchi, H., and Yamazaki, H.

Abstract

We have developed a liquid deuterium target system to be used with the Neutral Kaon Spectrometer (NKS). We designed the system with attention to yield, background and safety. For maximizing the K^0 yield, target thickness was optimized and the density of the liquid was kept as high as possible. For minimizing the background, we tried to reduce the amount of material around the target region. For the safety operation, we adopted the LabVIEW on Linux which enabled the remote monitoring and controlling. The target cell is made of aluminum outer shell with a thickness of 1mm and beam windows of 75μm thick polyimide film. We adopted the carbon fiber reinforced plastic (CFRP) with a thickness of 1.5mm for the material of the wall of the vacuum chamber covering the target cell. We succeeded in suppressing the boiling of the liquid deuterium and keeping the state as long as 2 weeks. The density of the liquid deuterium throughout the beam time in May 2004 was 0.1731±0.00007g/cm^3 including long term stability and short term fluctuation. The total error of the number of the target is 0.63%, which is much less than the statistical error.

Published
2004

23. Comparison of the ^<16>O(e, e'p) Cross Section at Low Momentum Transfer with Relativistic Calculations Including MEC(I. Nuclear Physics)

Author

Hayashi, Y., Tamae, T., Abe, K., Hashimoto, R., Hirose, K., Ishikawa, T., Kanda, H., Konno, O., Maeda, K., Miyase, H., Nanao, M., Nishikawa, I., Ohtsuki, T., Sato, Y., Takahashi, K., Takahashi, T., Tsubota, H., Wakamatsu, M., and Yamazaki, H.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The (e, e'p_0) cross section of ^O was measured at an energy transfer of 60 MeV and a momentum transfer of 105.2 MeV/c, using a 199.53 MeV continuous electron beam. The result is compared with theoretical calculations based on the relativistic distorted-wave impulse approximation (RDWIA). The theoretical values overestimate the experimental ones by a factor of two. The contribution of meson exchange current (MEC) effects is important in the high missing momentum region.

Published
2004

24. Comparison of the ^<12>C(e, e'p) Cross Sections at Low Momentum Transfer With Relativistic Calculations(I. Nuclear Physics)

Author

Tamae, T., Sato, Y., Yokokawa, T., Asano, Y., Kawabata, M., Kimura, R., Konno, O., Miyase, H., Nakagawa, I., Nishikawa, I., Hirota, K., Tsubota, H., and Yamazaki, H.

Subjects
Nuclear Theory
Abstract

The (e, e'p_0) cross section of ^C previously measured using a 197.5 MeV continuous electron beam is compared with theoretical calculations based on the relativistic distorted-wave impulse approximation (RDWIA). The theoretical values overestimate the experimental ones by a factor of two. The contribution of meson exchange current (MEC) effects is important in the high missing momentum region.

Published
2003

26. Search for Two Nucleon States by the ^<12>C (γ, pn) ^<10>B Reaction(I. Nuclear Physics)

Author

Hirose, K., Chiba, M., Inoue, M., Kanda, H., Kino, K., Konno, O., Maeda, K., Miyase, H., Ohtsuki, T., Suda, T., Takahashi, K., Tamae, T., Terasawa, T., Tsubota, H., Utoyama, M., Wakamatsu, M., Yamaguchi, Y., Yamazaki, H., and Yuuki, H.

Subjects
Nuclear Experiment
Abstract

We performed the ^C(γ, pn) experiment using tagged photons in an energy range from 30 to 120 MeV. Protons and neutrons were detected by a range telescope and NE213 liquid scintillators, respectively. Missing energy spectra of the ^C(γ, pn) reaction were deduced to search for the two nucleon excited states. In this report, we show the experimental setup for the ^C(γ, pn) reaction using the tagged photon beams. The preliminary results are shown and discussed. The data analysis is in progress.

Published
2002

27. Study of Giant Resonances of ^9Be with the (e, e'n) Reaction(I. Nuclear Physics)

Author

Toda, H., Tamae, T., Asano, Y., Kanda, H., Kino, K., Konno, O., Maeda, K., Miyase, H., Nishikawa, I., Takahashi, K., Terasawa, T., Tsubota, H., Utoyama, M., Watabe, M., Yamaguchi, Y., and Yamazaki, H.

Subjects
Nuclear Experiment
Abstract

The (e, e' n) cross sections have been measured in the giant resonance region at three momentum transfers. The E1 cross section shows a shallow minimum at 22 MeV. It is believed that the reaction mechanism is different from each other in the both sides of the minimum. The angular distribution of emitted neutrons and the momentum-transfer dependence of the cross section suggest that the E2 component is distributed over a wide energy region. About 40% of branching-ratio is observed to leave the residual ^8Be nucleus at levels of 16.6 and 16.9 MeV.

Published
2002

28. Isovector E2/E0 strength in ^<28>Si studied by the (e, e'n) reaction II(I. Nuclear Physics)

Author

Kino, K., Asano, Y., Higuchi, M., Idosawa, T., Matsuura, Y., Nakagawa, T., Nishikawa, I., Saito, T., Suzuki, T., Takahashi, K., Tamae, T., Toda, H., Tsubota, H., Ueno, H., Utoyama, M., and Watabe, M.

Abstract

We have measured the ^Si (e, e'n) reaction in the excitation energy range 28.5- 39.5 MeV which is higher than that in the previous experiment. The obtained E1 strength agreed with that of the photoreaction. The E2-E0 component below 22 MeV showed a difference to that of the (e, e'p_^) reaction and was similar to the (e, e' α_1) and ( α, α ') reactions which contain dominantly isoscalar resonances. In the higher energy, the present E2-E0 data have a broad bump from 23 to 35 MeV which is not seen in the (α, α') reaction ; it is thought to be attributed to the isovector excitation. This interpretation is partially supported by the result of the ^Si(^7Li, ^7Be) ^Al experiment.

Published
2002

29. Study of (e, e' α) Reaction on ^9Be(I. Nuclear Physics)

Author

Asano, Y., Tamae, T., Kimura, R., Konno, O., Hirota, K., Maeda, K., Miyase, H., Nishikawa, I., Terasawa, T., Tsubota, H., and Yamazaki, H.

Subjects
Physics::Accelerator Physics, Nuclear Experiment
Abstract

The (e, e' a) cross section has been measured at energy transfers from 10.0 to 28.4 MeV and a momentum transfer of 99 MeV/c, using a 197 MeV continuous electron beam. The cross section rapidly increases with decreasing energy at angles smaller than 25°, while it appears flat at larger angles. The forward-peaked angular distribution was observed below 18 MeV, and the forward peak shrinks at higher energies. An amount of αparticles from decay of ^5He is estimated.

Published
2001

30. The 200 MeV Bremsstrahlung Tagged Photon Beam at LNS-Sendai(I. Nuclear Physics)

Author

Saito, A., Chiba, M., Kanda, H., Kimura, R., Kobayashi, Y., Konno, O., Maeda, K., Matui, H., Miyase, H., Miyamoto, A., Ohtsuki, T., Suda, T., Tamae, T., Terasaki, Y., Terasawa, T., Tsubota, H., Tsuruta, M., and Yamazaki, H.

Subjects
Physics::Optics, Physics::Accelerator Physics, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Nuclear Experiment
Abstract

We describe the 200-MeV bremsstrahlung photon tagging system, which was installed in the experimental Hall-1 at the Laboratory of Nuclear Science, Tohoku University. This system produces tagged photons from high duty electron beams supplied by Stretcher Booster Ring. The tagged photon energies are over a range from 20% to 80% of the incident electron energy. We carried out commissioning to examine the performance of the tagged photon beams produced by the 198 MeV electron beam. We demonstrated that the tagged photons can be employed for photonuclear reaction experiments with a momentum resolution Δp/p～1% at the tagged photon intensity I≤5×10^6.

Published
2000

31. Study of ^<12>C(e, e' p) Reaction at an Energy Transfer of 60 MeV(I. Nuclear Physics)

Author

Sato, Y., Tamae, T., Yokokawa, T., Asano, Y., Hirota, K., Kawabata, M., Kimura, R., Konno, O., Miyase, H., Nakagawa, I., Nishikawa, I., Tsubota, H., and Yamazaki, H.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The (e, e' p) cross section has been measured at an energy transfer of 60 MeV and a momentum transfer of 104.1 MeV/c, using a 197 MeV continuous electron beam. The reduced cross section at missing momenta between 81.3 and 321.2 MeV/c obtained from the experiment is compared with a distorted-wave impulse approximation (DWIA) in a reasonable agreement. This result demonstrates a high reliability of the DWIA calculation in this energy region, and supports the discussion that a large difference between the experimental data and the DWIA calculation in the (γ, p) reaction is related to the non-nucleonic degrees of freedom such as meson exchange currents.

Published
2000

32. Virtual Compton scattering and the generalized polarizabilities of the proton at Q²=0.92 and 1.76 GeV²

Author

Fonvieille, H, Laveissiere, G, Degrande, N, Jaminion, S, Jutier, C, Todor, L, Di Salvo, R, Van Hoorebeke, Luc, Alexa, LC, Anderson, BD, Aniol, KA, Arundell, K, Audit, G, Auerbach, L, Baker, FT, Baylac, M, Berthot, J, Bertin, PY, Bertozzi, W, Bimbot, L, Boeglin, WU, Brash, EJ, Breton, V, Breuer, H, Burtin, E, Calarco, JR, Cardman, LS, Cavata, C, Chang, CC, Chen, JP, Chudakov, E, Cisbani, E, Dale, DS, de Jager, CW, De Leo, R, Deur, A, d'Hose, N, Dodge, GE, Domingo, JJ, Elouadrhiri, L, Epstein, MB, Ewell, LA, Finn, JM, Fissum, KG, 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, PAM, Hansen, JO, Holmes, R, Holtrop, M, Howell, C, Huber, GM, Hyde, CE, Incerti, S, Iodice, M, Jardillier, J, Jones, MK, Kahl, W, Kato, S, Katramatou, AT, Kelly, JJ, Kerhoas, S, Ketikyan, A, Khayat, M, Kino, K, Kox, S, Kramer, LH, Kumar, KS, Kumbartzki, G, Kuss, M, Leone, A, LeRose, JJ, Liang, M, Lindgren, RA, Liyanage, N, Lolos, GJ, Lourie, RW, Madey, R, Maeda, K, Malov, S, Manley, DM, Marchand, C, Marchand, D, Margaziotis, DJ, Markowitz, P, Marroncle, J, Martino, J, McCormick, K, McIntyre, J, Mehrabyan, S, Merchez, F, Meziani, ZE, Michaels, R, Miller, GW, Mougey, JY, Nanda, SK, Neyret, D, Offermann, EAJM, Papandreou, Z, Pasquini, B, Perdrisat, CF, Perrino, R, Petratos, GG, Platchkov, S, Pomatsalyuk, R, Prout, DL, Punjabi, VA, Pussieux, T, Quemener, G, Ransome, RD, Ravel, O, Real, JS, Renard, F, Roblin, Y, Rowntree, D, Rutledge, G, Rutt, PM, Saha, A, Saito, T, Sarty, AJ, Serdarevic, A, Smith, T, Smirnov, G, Soldi, K, Sorokin, P, Souder, PA, Suleiman, R, Templon, JA, Terasawa, T, Tieulent, R, Tomasi-Gustaffson, E, Tsubota, H, Ueno, H, Ulmer, PE, Urciuoli, GM, Vanderhaeghen, M, Van der Meer, RLJ, Van de Vyver, R, Vernin, P, Vlahovic, B, Voskanyan, H, Voutier, E, Watson, JW, Weinstein, LB, Wijesooriya, K, Wilson, R, Wojtsekhowski, BB, Zainea, DG, Zhang, WM, Zhao, J, and Zhou, ZL

Subjects
Physics and Astronomy, LINEAR SIGMA-MODEL, NUCLEON POLARIZABILITIES, AMPLITUDE, ELECTROPRODUCTION, LOW-ENERGY, Nuclear Experiment, CHIRAL PERTURBATION-THEORY, REAL, THRESHOLD
Abstract

Virtual Compton scattering (VCS) on the proton has been studied at the Jefferson Laboratory using the exclusive photon electroproduction reaction ep -> ep gamma. This paper gives a detailed account of the analysis which has led to the determination of the structure functions P-LL - P-TT/epsilon and P-LT and the electric and magnetic generalized polarizabilities (GPs) alpha(E) (Q(2)) and beta(M) (Q(2)) at values of the four-momentum transfer squared Q(2) = 0.92 and 1.76 GeV2. These data, together with the results of VCS experiments at lower momenta, help building a coherent picture of the electric and magnetic GPs of the proton over the full measured Q(2) range and point to their nontrivial behavior.

Published
2012

33. 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

34. $Q^2$ evolution of the neutron spin structure moments using a $^3He$ target

Author

Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., Bertozzi, B., Black, T., Brash, E., Brown, D., Burtin, E., Calarco, J., Cates, G., Chai, Z., Chen, J. -P, Choi, S., Chudakov, E., Cisbani, E., Jager, C. W., Deur, A., Disalvo, R., Dieterich, S., Djawotho, P., Finn, M., Fissum, K., Fonvieille, H., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Alexander Glamazdin, Glashausser, C., Goldberg, E., Gomez, J., Gorbenko, V., Hansen, J. -O, Hersman, B., Holmes, R., Huber, G. M., Hughes, E., Humensky, B., Incerti, S., Iodice, M., Jensen, S., Jiang, X., Jones, C., Jones, G., Jones, M., Jutier, C., Ketikyan, A., Kominis, I., Korsch, W., Kramer, K., Kumar, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Laveissiere, G., Lerose, J., Liang, M., Liyanage, N., Lolos, G., Malov, S., Marroncle, J., Mccormick, K., Mckeown, R., Meziani, Z. -E, Michaels, R., Mitchell, J., Papandreou, Z., Pavlin, T., Petratos, G. G., Pripstein, D., Prout, D., Ransome, R., Roblin, Y., Rowntree, D., Rvachev, M., Sabatie, F., Saha, A., Slifer, K., Souder, P., Saito, T., Strauch, S., Suleiman, R., Takahashi, K., Teijiro, S., Todor, L., Tsubota, H., Ueno, H., Urciuoli, G., Meer, R., Vernin, P., Voskanian, H., Wojtsekhowski, B., Xiong, F., Xu, W., Yang, J. -C, Zhang, B., Zolnierczuk, P., Pellet, Jeanine, 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), and E94010

Subjects
High Energy Physics - Experiment (hep-ex), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [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 measured the spin structure functions $g_1$ and $g_2$ of $^3$He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.07 GeV off a polarized $^3$He target at a 15.5$^{\circ}$ scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the $Q^2$ evolution of $\Gamma_1(Q^2)=\int_0^{1} g_1(x,Q^2) dx$, $\Gamma_2(Q^2)=\int_0^1 g_2(x,Q^2) dx$ and $d_2 (Q^2) = \int_0^1 x^2[ 2g_1(x,Q^2) + 3g_2(x,Q^2)] dx$ for the neutron in the range 0.1 GeV$^2$ $\leq Q^2 \leq $ 0.9 GeV$^2$ with good precision. $ \Gamma_1(Q^2)$ displays a smooth variation from high to low $Q^2$. The Burkhardt-Cottingham sum rule holds within uncertainties and $d_2$ is non-zero over the measured range., Comment: 5 pages, 2 figures, submitted to Phys. Rev. Lett.. Updated Hermes data in Fig. 2 (top panel) and their corresponding reference. Updated the low x extrapolation error Fig. 2 (middle panel). Corrected references to ChiPT calculations

Published
2004

35. 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

36. 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

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

Author

G. Fissum, K., Liang, M., D. Anderson, B., A. Aniol, K., Auerbach, L., T. Baker, F., Berthot, J., Bertozzi, W., Bertin, P.Y., Bimbot, L., U. Boeglin, W., J. Brash, E., BRETON, Vincent, Breuer, H., Burtin, E., R. Calarco, J., S. Cardman, L., D. Cates, G., Cavata, C., C. Chang, C., Chen, J.-P., Cisbani, E., S. Dale, D., W. De Jager, C., De Leo, R., Deur, A., Diederich, B., Djawotho, P., Domingo, J., Ducret, J.-E., B. Epstein, M., Ewell, L.A., M. Finn, J., Fonvieille, H., Frois, B., Frullani, S., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Gorringe, T., W. Hersman, F., Holmes, R., Holtrop, M., D'Hose, N., Howell, C., M. Huber, G., E. Hyde-Wright, C., Iodice, M., Jaminion, S., K. Jones, M., Joo, K., Jutier, C., Kahl, W., Kato, S., Kelly, J.J., Kerhoas, S., Khandaker, M., Khayat, M., Kino, K., Korsch, W., Kramer, L., S. Kumar, K., Kumbartzki, G., Laveissière, G., Leone, A., LeRose, J.J., Levchuk, L., A. Lindgren, R., Liyanage, N., J. Lolos, G., W. Lourie, R., Madey, R., Maeda, K., Malov, S., M. Manley, D., J. Margaziotis, D., Markowitz, P., Martino, J., S. Mccarthy, J., McCormick, K., McIntyre, J., L. J. Van Der Meer, R., Meziani, Z.-E., Michaels, R., Mougey, J., Nanda, S., Neyret, D., A. J. M. Offermann, E., Papandreou, Z., F. Perdrisat, C., Perrino, R., G. Petratos, G., Platchkov, S., Pomatsalyuk, R., L. Prout, D., A. Punjabi, V., Pussieux, T., Quéméner, G., D. Ransome, R., Ravel, O., Roblin, Y., Roche, R., Rowntree, D., A. Rutledge, G., M. Rutt, P., Saha, A., Saito, T., J. Sarty, A., Serdarevic-Offermann, A., P. Smith, T., Soldi, A., Sorokin, P., Souder, P., Suleiman, R., A. Templon, J., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., E. Ulmer, P., M. Urciuoli, G., Vernin, P., Van Verst, S., Vlahovic, B., Voskanyan, H., W. Watson, J., B. Weinstein, L., Wijesooriya, K., Wojtsekhowski, B., G. Zainea, D., Zeps, V., 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), 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), 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), 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
Nuclear Theory, 25.30.Fj, 24.70.+s, 27.20.+n, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

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 (GeV/c)^2, q ~ 1 GeV/c, and w ~ 445 MeV. Use of a self-calibrating, self-normalizing, thin-film waterfall target enabled a systematically rigorous measurement. Differential cross-section data for proton knockout were obtained for 0 < Emiss < 120 MeV and 0 < pmiss < 350 MeV/c. These results have been used to extract the ALT asymmetry and the RL, RT, RLT, and RL+TT effective response functions. Detailed comparisons of the data with Relativistic Distorted-Wave Impulse Approximation, Relativistic Optical-Model Eikonal Approximation, and Relativistic Multiple-Scattering Glauber Approximation calculations are made. The kinematic consistency of the 1p-shell normalization factors extracted from these data with respect to all available 16O(e,e'p) data is examined. The Q2-dependence of the normalization factors is also discussed., 43 pages, 25 figures, all known typos now corrected

Published
2004

38. 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

39. 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

40. Photon electroproduction from hydrogen at backward angles and momentum transfer squared of $Q^{2}=1.0Gev^{2}$

Author

Laveissière, 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, Böglin, W, Brash, E J, Breton, V, 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, John 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, Gómez, 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, Le Rose, J J, Liang, M, Lindgren, R A, Liyanage, N K, 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, McCormick, K, McIntyre, J, Mehrabyan, S S, Merchez, F, Meziani, Z E, Michaels, R, Miller, G W, Mougey, J Y, Nanda, S K, Neyret, D, Offermann, E, Papandreou, Z, Perdrisat, C F, Perrino, R, Petratos, G G, Platchkov, S, Pomatsalyuk, R I, 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, Saitô, T, Sarty, A J, Serdarevic, A, Smith, T, Smirnov, G, Soldi, K, Sorokin, P, Souder, P A, Suleiman, R, Templon, J A, Terasawa, T, Tiator, L, Tieulent, R, Tomasi-Gustafsson, E, Tsubota, H, Ueno, H, Ulmer, P E, Urciuoli, G M, Van De Vyver, R, Van, R L J, der Meer, 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, and Zhou, Z L

Subjects
Particle Physics - Experiment
Published
2004

43. Separation of the longitudinal and transverse cross sections in the $^{1}H(e,e'K^{+})\Lambda$ and $^{1}H(e,e'K^{+})\Sigma^{0}$ reactions

Author

Mohring, R.M., Abbott, D., Ahmidouch, A., Amatuni, T.A., Ambrozewicz, P., Angelescu, T., Armstrong, C.S., Arrington, J., Assamagan, K., Avery, S., Bailey, K., Beard, K., Beedoe, S., Beise, E.J., Breuer, H., Carlini, R., Cha, J., Chang, C.C., Chant, N., Cisbani, E., Collins, G., Cummings, W., Danagoulian, S., De Leo, R., Duncan, F., Dunne, J., Dutta, D., Eden, T., Ent, R., Eraud, L., Ewell, L., Finn, M., Fortune, T., Frolov, V., Frullani, S., Furget, C., Garibaldi, F., Gaskell, D., Geesaman, D.F., Gueye, P., Gustafsson, K.K., Hansen, J.O., Harvey, M., Hinton, W., Hungerford, E., Iodice, M., Jackson, C., Keppel, C., Kim, W., Kino, K., Koltenuk, D., Kox, S., Kramer, L., Leone, T., Lung, A., Mack, D., Madey, R., Maeda, M., Majewski, S., Markowitz, P., Mart, T., Martoff, C.J., Meekins, D., Mihul, A., Mitchell, J., Mkrtchyan, H., Mtingwa, S., Niculescu, I., Perrino, R., Potterveld, D., Price, J.W., Raue, B.A., Real, J.S., Reinhold, J., Roos, P., Saito, T., Savage, G., Sawafta, R., Segel, R., Stepanyan, S., Stoler, P., Tadevosian, V., Tang, L., Teodorescu, L., Terasawa, T., Tsubota, H., Urciuoli, G.M., Volmer, J., Vulcan, W., Welch, T.P., Williams, R., Wood, S., Yan, C., Zeidman, B., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment
Abstract

We report measurements of cross sections for the reaction p(e,e'K)Y, for both the Lambda and Sigma_0 hyperon states, at an invariant mass of W=1.84 GeV and four-momentum transfers 0.5

Published
2003

44. Q$^2$ evolution of the generalized Gerasimov-Drell-Hearn integral for the neutron using a $^3$He target

Author

Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., Bertozzi, W., Black, T., Brash, E., Brown, D., Burtin, E., Calarco, J. R., Cates, G. D., Chai, Z., Chen, J. -P, Choi, S., Chudakov, E., Cisbani, E., Jager, C. W., Deur, A., Disalvo, R., Dieterich, S., Djawotho, P., Finn, M., Fissum, K., Fonvieille, H., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Alexander Glamazdin, Glashausser, C., Goldberg, E., Gomez, J., Gorbenko, V., Hansen, J. -O, Hersman, F. W., Holmes, R., Huber, G. M., Hughes, E. W., Humensky, T. B., Incerti, S., Iodice, M., Jensen, S., Jiang, X., Jones, C., Jones, G. M., Jones, M., Jutier, C., Ketikyan, A., Kominis, I., Korsch, W., Kramer, K., Kumar, K. S., Kumbartzki, G., Kuss, M., Lakuriqi, E., Laveissiere, G., Lerose, J., Liang, M., Liyanage, N., Lolos, G., Malov, S., Marroncle, J., Mccormick, K., Mckeown, R., Meziani, Z. -E, Michaels, R., Mitchell, J., Papandreou, Z., Pavlin, T., Petratos, G. G., Pripstein, D., Prout, D., Ransome, R., Roblin, Y., Rowntree, D., Rvachev, M., Sabatie, F., Saha, A., Slifer, K., Souder, P. A., Saito, T., Strauch, S., Suleiman, R., Takahashi, K., Teijiro, S., Todor, L., Tsubota, H., Ueno, H., Urciuoli, G., Meer, R., Vernin, P., Voskanian, H., Wojtsekhowski, B., Xiong, F., Xu, W., Yang, J. -C, Zhang, B., Zolnierczuk, P., 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), E94010, and Pellet, Jeanine

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

We present data on the inclusive scattering of polarized electrons from a polarized 3He target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5 degrees. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference sigma(1/2)-sigma(3/2). We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q2 of 0.1-0.9 GeV2.

Published
2002

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

Author

Liyanage, N., Anderson, B. D., Aniol, K. A., Auerbach, L., Baker, F. T., Berthot, J., Bertozzi, W., Bertin, P. Y., Bimbot, L., Boeglin, W. U., Brash, E. J., Vincent Breton, Breuer, H., Burtin, E., Calarco, J. R., Cardman, L., Cates, G. D., Cavata, C., Chang, C. C., Chen, J. P., Cisbani, E., Dale, D. S., Leo, R., Deur, A., Diederich, B., Djawotho, P., Domingo, J., Doyle, B., Ducret, J. E., Epstein, M. B., Ewell, L. A., Finn, J. M., Fissum, K. G., Fonvieille, H., Frois, B., Frullani, S., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Gorringe, T., Hersman, F. W., Holmes, R., Holtrop, M., Hose, N. D., Howell, C., Huber, G. M., Hyde-Wright, C. E., Iodice, M., Jager, C. W., Jaminion, S., Jones, M. K., Joo, K., Jutier, C., Kahl, W., Kato, S., Kelly, J. J., Kerhoas, S., Khandaker, M., Khayat, M., Kino, K., Korsch, W., Kramer, L., Kumar, K. S., Kumbartzki, G., Laveissiere, G., Leone, A., Lerose, J. J., Levchuk, L., Liang, M., Lindgren, R. A., Lolos, G. J., Lourie, R. W., Madey, R., Maeda, K., Malov, S., Manley, D. M., Margaziotis, D. J., Markowitz, P., Martino, J., Mccarthy, J. S., Mccormick, K., Mcintyre, J., Meer, R. L. J., Meziani, Z. E., Michaels, R., Mougey, J., Nanda, S., 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., Roblin, Y., Roche, R., Rowntree, D., Rutledge, G. A., Saha, A., Saito, T., Sarty, A. J., Serdarevic-Offermann, A., Smith, T. P., Soldi, A., Sorokin, P., Souder, P., Suleiman, R., Templon, J. A., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., Ulmer, P. E., Urciuoli, G. M., Vernin, P., Verst, S., Vlahovic, B., Voskanian, H., Watson, J. W., Weinstein, L. B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B., Zainea, D. G., Zeps, V., 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), 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), HALL A, 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), and 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)

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

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 60 MeV and P_miss > 200 MeV/c, the cross section is relatively constant. Calculations which include contributions from pion exchange currents, isobar currents and short-range correlations account for the shape and the transversity but only for half of the magnitude of the measured cross section.

Published
2001

46. Study of double pion photoproduction on the deuteron

Author

Hirose, K., Ejima, M., Fujibayashi, T., Fujii, Y., Futatsukawa, K., Hashimoto, O., Ishikawa, T., Kameoka, S., Kanda, H., Kato, F., Kinoshita, S., Kinoshita, T., Kon, T., Konno, O., Maeda, K., Matsumura, A., Miura, Y., Miyahara, F., Miyase, H., Nakabayashi, T., Nakamura, S.N., Nomura, H., Nonaka, K., Ohtani, A., Okayasu, Y., Oyamada, M., Sasaki, A., Shimizu, H., Takahashi, T., Tamae, T., Tamura, H., Terasawa, T., Tsubota, H., Tsukada, K., Uchida, D., Ukai, M., Wakamatsu, M., Watanabe, T., Yamauchi, H., Yamazaki, H., and Yawata, K.

Published
2009
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47. Polarization transfer in the ${16}O$ ($\vec{e},e'\vec{p}$) $^{15}$N reaction

Author

Malov, S., Wijesooriya, K., Baker, F. T., Bimbot, L., Brash, E. J., Chang, C. C., Finn, J. M., Fissum, K. G., Gao, J., Gilman, R., Glashausser, C., Jones, M. K., Kelly, J. J., Kumbartzki, G., Liyanage, N., Mcintyre, J., Nanda, S., Perdrisat, C. F., Punjabi, V. A., Quéméner, G., Ransome, R. D., Rutt, P. M., Zainea, D. G., Anderson, B. D., Aniol, K. A., Auerbach, L., Berthot, J., Bertozzi, W., Bertin, P. Y., Boeglin, W. U., Vincent Breton, Breuer, H., Burtin, E., Calarco, J. R., Cardman, L., Cates, G. D., Cavata, C., Chen, J. P., Cisbani, E., Dale, D. S., Leo, R., Deur, A., Diederich, B., Djawotho, P., Domingo, J., Doyle, B., Ducret, J. E., Epstein, M. B., Ewell, L. A., Fleniken, J., Fonvieille, H., Frois, B., Frullani, S., Garibaldi, F., Gasparian, A., Gilad, S., Glamazdin, A., Gomez, J., Gorbenko, V., Gorringe, T., Griffioen, K., Hersman, F. W., Hines, J., Holmes, R., Holtrop, M., Hose, N. D., Howell, C., Huber, G. M., Hyde-Wright, C. E., Iodice, M., Jager, C. W., Jaminion, S., Joo, K., Jutier, C., Kahl, W., Kato, S., Kerhoas, S., Khandaker, M., Khayat, M., Kino, K., Korsch, W., Kramer, L., Kumar, K. S., Laveissiere, G., Leone, A., Lerose, J. J., Levchuk, L., Liang, M., Lindgren, R. A., Lolos, G. J., Lourie, R. W., Madey, R., Maeda, K., Manley, D. M., Margaziotis, D. J., Markowitz, P., Marroncle, J., Martino, J., Mccarthy, J. S., Mccormick, K., Meer, R. L. J., Meziani, Z. E., Michaels, R., Mougey, J., Neyret, D., Offermann, E. A. J. M., Papandreou, Z., Perrino, R., Petratos, G. G., Platchkov, S., Pomatsalyuk, R., Prout, D. L., Pussieux, T., Ravel, O., Roblin, Y., Roche, R., Rowntree, D., Rutledge, G. A., Saha, A., Saito, T., Sarty, A. J., Serdarevic-Offermann, A., Smith, T. P., Soldi, A., Sorokin, P., Souder, P., Suleiman, R., Templon, J. A., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., Ulmer, P. E., Urciuoli, G. M., Vernin, P., Verst, S., Vlahovic, B., Voskanian, H., Watson, J. W., Weinstein, L. B., Wilson, R., Wojtsekhowski, B., Zeps, V., Zhao, J., Zhou, Z. L., Institut de Physique Nucléaire d'Orsay (IPNO), 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), 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), HALL A, 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), and 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)

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

The first (e,e'p) polarization transfer measurements on a nucleus heavier than deuterium have been carried out at Jefferson Laboratory. Transverse and longitudinal components of the polarization of protons ejected in the reaction 16O(e,e'p) were measured in quasielastic perpendicular kinematics at a Q^2 of 0.8 (GeV/c)^2. The data are in good agreement with state of the art calculations, but do not exclude possible changes in the ratio of the electric to magnetic form factors of the nucleon in the nuclear medium at the level of recent theoretical predictions.

Published
2000

48. Dynamical relativistic effects in quasielastic 1p-shell proton knockout from $^{16}$O

Author

Gao, J., Anderson, B. D., Aniol, K. A., Auerbach, L., Baker, F. T., Beise, E. J., Berthot, J., Bertin, P. Y., Bertozzi, W., Bimbot, L., Boeglin, W. U., Brash, E. J., Vincent Breton, Breuer, H., Burtin, E., Calarco, J. R., Cardman, L. S., Cates, G. D., Cavata, C., Chang, C. C., Chant, N. S., Chen, J. P., Cisbani, E., Dale, D. S., Deur, A., Diederich, B., Djawotho, P., Doyle, B., Ducret, J. E., Epstein, M. B., Ewell, L. A., Finn, J. M., Fissum, K. G., Fonvieille, H., Frois, B., Frullani, S., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Gorringe, T., Griffieon, K., Hersman, F. W., Holmes, R., Holtrop, M., Hose, N. D., Howell, C., Huber, G. M., Hyde-Wright, C., Iodice, M., Jager, C. W., Jaminion, S., Jones, M. K., Joo, K., Jutier, C., Kahl, W., Kato, S., Kelly, J. J., Kerhoas, S., Khandaker, M., Khayat, M., Kino, K., Korsch, W., Kramer, L. H., Kumar, K. S., Kumbartzki, G., Laveissiere, G., Leo, R., Leone, A., Le Rose, J. J., Levchuk, L., Liang, M., Lindgren, R. A., Liyanage, N., Lolos, G. J., Lourie, R. W., Madey, R., Maeda, K., Malov, S., Manley, D. M., Margaziotis, D. J., Markowitz, P., Marroncle, J., Martino, J., Mccarty, J. S., Mccormick, K., Mcintyre, J., Meer, R. L. J., Meziani, Z. E., Michaels, R., 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., Roblin, Y., Roche, R., Rondon-Aramayo, O. A., Roos, P. G., Rowntree, D., Rutledge, G., Rutt, P. M., Saha, A., Saito, T., Sarty, A. J., Serdarevic-Offermann, A., Smith, T., Soldi, K., Sorokin, P., Souder, P. A., Suleiman, R., Templon, J. A., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., Ulmer, P. E., Urciuoli, G. M., Vernin, P., Verst, S., Vlahovic, B., Voskanyan, H., Watson, J. W., Weinstein, L. B., Wijesooriya, K., Wilson, R., Wojtsekhowski, B. B., Zainea, D. G., Zeps, V., 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), 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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), 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), HALL A, 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), and 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)

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

We have measured the cross section for quasielastic 1p-shell proton knockout in the 16O(e,e′p) reaction at ω=0.439GeV and Q2=0.8(GeV/c)2 for missing momentum Pmiss≤355MeV/c. We have extracted the response functions RL+TT, RT, RLT, and the left-right asymmetry, ALT, for the 1p1/2 and the 1p3/2 states. The data are well described by relativistic distorted wave impulse approximation calculations. At large Pmiss, the structure observed in ALT indicates the existence of dynamical relativistic effects. (APS)

Published
2000

49. Quasielastic 1p-shell proton knockout from $^{16}O$ at $Q^{2} = 0.8 (GeV/c)^{2}$

Author

Gao, J, Anderson, B D, Aniol, K A, Auerbach, L B, Baker, F T, Beise, E J, Berthot, J, Bertin, P Y, Bertozzi, W, Bimbot, L, Brash, E J, Breton, V, Breuer, H, Burtin, E, Böglin, W, Calarco, J R, Cardman, L S, Cates, G D, Cavata, C, Chang, C C, Chant, N S, Chen, J P, Cisbani, E, D'Hose, N, Dale, D S, De Jager, C W, De Leo, R, Deur, A, Diederich, B, Djawotho, P, Doyle, B, Ducret, J E, Epstein, M B, Ewell, L A, Finn, J M, Fissum, K G, Fonvieille, H, Frois, Bernard, Frullani, S, Garibaldi, F, Gasparian, A, Gilad, S, Gilman, R, Glamazdin, A V, Glashausser, C, Gorbenko, V G, Gorringe, T P, Griffieon, K, Gómez, J, Hersman, F W, Holmes, R, Holtrop, M, Howell, C, Huber, G M, Hyde-Wright, C E, Iodice, M, Jaminion, S, Jones, M K, Joo, K K, Jutier, C, Kahl, W E, Kato, S, Kelly, J J, Kerhoas, S, Khandaker, M, Khayat, M, Kino, K, Korsch, W, Kramer, L, Kumar, K S, Kumbartzki, G J, Laveissière, G, Le Rose, J J, Leone, A, Levchuk, L G, Liang, M, Lindgren, R A, Liyanage, N K, Lolos, G J, Lourie, R W, Madey, R, Maeda, K I, Malov, S Y, Manley, D M, Margaziotis, D J, Markowitz, P, Martino, J, McCarthy, J S, McCormick, K, McIntyre, J, Meziani, Z E, Michaels, R, Mougey, J, Nanda, S, Neyret, D, Offermann, E, Papandreou, Z, Perdrisat, C F, Perrino, R, Petratos, G G, Platchkov, S K, Pomatsalyuk, R I, Prout, D L, Punjabi, V A, Pussieux, T, Quéméner, G, Ransome, R D, Ravel, O, Roblin, Y, Roché, R, Rondon-Aramayo, O A, Roos, P G, Rowntree, D, Rutledge, G A, Rutt, P M, Saha, A, Saitô, T, Sarty, A J, Serdarevic-Offermann, A, Smith, T P, Soldi, A, Sorokin, P, Souder, P A, Suleiman, R, Templon, J A, Terasawa, T, Todor, L, Tsubota, H, Ueno, H, Ulmer, P E, Urciuoli, G M, Van Verst, S P, Van der Meer, R L J, Vernin, P, Vlahovic, B, Voskanyan, H, Watson, J W, Weinstein, L B, Wijesooriya, K, Wilson, R, Wojtsekhowski, B B, Zainea, D G, Zeps, V, Zhao, J, and Zhou, Z L

Subjects
Nuclear Physics
Published
1999

50. 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

Author

Alexa, L. C., Anderson, B. D., Aniol, K. A., Arundell, K., Auerbach, L., Baker, F. T., Berthot, J., Bertin, P. Y., Bertozzi, W., Bimbot, L., Boeglin, W. U., Brash, E. J., Vincent Breton, 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., Degrande, N., Leo, R., Deur, A., Hose, N. D., Diederich, B., Domingo, J. J., Epstein, M. B., Ewell, L. A., Finn, J. M., Fissum, K. G., Fonvieille, H., Frois, B., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Gomez, J., Gorbenko, V., Hansen, J. O., Holmes, R., Holtrop, M., Howell, C., Huber, G. M., Hyde-Wright, C., Iodice, M., Jager, C. W., Jaminion, S., Jardillier, J., Jones, M. K., Jutier, C., Kahl, W., Kato, S., Katramatou, A. T., Kelly, J. J., Kerhoas, S., Ketikian, A., Khayat, M., Kino, K., Kramer, L. H., Kumar, K. S., Kumbartzki, G., Kuss, M., Laveissiere, G., Leone, A., Le Rose, J. J., Liang, M., Lindgren, R. A., Liyanage, N., Lolos, G. J., Lourie, R. W., Madey, R., Maeda, K., Malov, S., Manley, D. M., Margaziotis, D. J., Markowitz, P., Marroncle, J., Martino, J., Martoff, C. J., Mccormick, K., Mcintyre, J., Meer, R. L. J., Mehrabian, S., 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., Roblin, Y., Rowntree, D., Rutledge, G., Rutt, P. M., Saha, A., Saito, T., Sarty, A. J., Serdarevic, A., Smith, T., Soldi, K., Sorokin, P., Souder, P. A., Suleiman, R., Templon, J. A., Terasawa, T., Todor, L., Tsubota, H., Ueno, H., Ulmer, P. E., Urciuoli, G. M., Hoorebeke, L., Vernin, P., Vlahovic, B., Voskanian, H., 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), 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
High Energy Physics::Lattice, Nuclear Theory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract

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 the Hall A Facility of Jefferson Laboratory. The data are compared to theoretical models based on the impulse approximation with inclusion of meson-exchange currents, and to predictions of quark dimensional scaling and perturbative quantum chromodynamics

Published
1999

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