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Title: Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q 2 = 0.92 and 1.76 G e V 2

Abstract

We report a Virtual Compton Scattering study of the proton at low CM energies. We have determined the structure functions P{sub LL} - P{sub TT}/{epsilon} and P{sub LT}, and the electric and magnetic Generalized Polarizabilities (GPs) {alpha}{sub E}(Q{sup 2}) and {beta}{sub M}(Q{sup 2}) at momentum transfer Q{sup 2} = 0.92 and 1.76 GeV{sup 2}. The electric GP shows a strong fall-off with Q{sup 2}, 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 Q{sup 2}, compensated at higher Q{sup 2} by a paramagnetic contribution from {pi}N intermediate states.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
Contributing Org.:
Jefferson Lab Hall A Collaboration
OSTI Identifier:
834099
Report Number(s):
JLAB-PHY-04-35; DOE/ER/40150-2953; hep-ph/0404243
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0407061
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 93; Journal Issue: 12; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CLOUDS; COMPTON EFFECT; DIPOLES; GLOBAL POSITIONING SYSTEM; MOMENTUM TRANSFER; PIONS; PROTONS; STRUCTURE FUNCTIONS

Citation Formats

Laveissière, 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, 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, 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., 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., Quémenér, 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 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., and Zhou, Z. -L. Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q2=0.92 and 1.76  GeV2. United States: N. p., 2004. Web. doi:10.1103/PhysRevLett.93.122001.
Laveissière, 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, 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, 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., 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., Quémenér, 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 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. Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q2=0.92 and 1.76  GeV2. United States. https://doi.org/10.1103/PhysRevLett.93.122001
Laveissière, 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, 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, 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., 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., Quémenér, 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 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., and Zhou, Z. -L. 2004. "Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q2=0.92 and 1.76  GeV2". United States. https://doi.org/10.1103/PhysRevLett.93.122001. https://www.osti.gov/servlets/purl/834099.
@article{osti_834099,
title = {Measurement of the Generalized Polarizabilities of the Proton in Virtual Compton Scattering at Q2=0.92 and 1.76  GeV2},
author = {Laveissière, G. and Todor, L. and Degrande, N. and Jaminion, S. and Jutier, C. and Di Salvo, R. and Van Hoorebeke, L. and Alexa, L. C. and Anderson, B. D. and Aniol, K. A. and Arundell, K. and Audit, G. and Auerbach, L. and Baker, F. T. and Baylac, M. and Berthot, J. and Bertin, P. Y. and Bertozzi, W. and Bimbot, L. and Boeglin, W. U. and Brash, E. J. and Breton, V. and Breuer, H. and Burtin, E. and Calarco, J. R. and Cardman, L. S. and Cavata, C. and Chang, C. -C. and Chen, J. -P. and Chudakov, E. and Cisbani, E. and Dale, D. S. and de Jager, C. W. and De Leo, R. and Deur, A. and d'Hose, N. and Dodge, G. E. and Domingo, J. J. and Elouadrhiri, L. and Epstein, M. B. and Ewell, L. A. and Finn, J. M. and Fissum, K. G. and Fonvieille, H. and Fournier, G. and Frois, B. and Frullani, S. and Furget, C. and Gao, H. and Gao, J. and Garibaldi, F. and Gasparian, A. and Gilad, S. and Gilman, R. and Glamazdin, A. and Glashausser, C. and Gomez, J. and Gorbenko, V. and Grenier, P. and Guichon, P. A. M. and Hansen, J. O. and Holmes, R. and Holtrop, M. and Howell, C. and Huber, G. M. and Hyde-Wright, C. E. and Incerti, S. and Iodice, M. and Jardillier, J. and Jones, M. K. and Kahl, W. and Kato, S. and Katramatou, A. T. and Kelly, J. J. and Kerhoas, S. and Ketikyan, A. and Khayat, M. and Kino, K. and Kox, S. and Kramer, L. H. and Kumar, K. S. and Kumbartzki, G. and Kuss, M. and Leone, A. and LeRose, J. J. and Liang, M. and Lindgren, R. A. and Liyanage, N. and Lolos, G. J. and Lourie, R. W. and Madey, R. and Maeda, K. and Malov, S. and Manley, D. M. and Marchand, C. and Marchand, D. and Margaziotis, D. J. and Markowitz, P. and Marroncle, J. and Martino, J. and McCormick, K. and McIntyre, J. and Mehrabyan, S. and Merchez, F. and Meziani, Z. E. and Michaels, R. and Miller, G. W. and Mougey, J. Y. and Nanda, S. K. and Neyret, D. and Offermann, E. A. J. M. and Papandreou, Z. and Pasquini, B. and Perdrisat, C. F. and Perrino, R. and Petratos, G. G. and Platchkov, S. and Pomatsalyuk, R. and Prout, D. L. and Punjabi, V. A. and Pussieux, T. and Quémenér, G. and Ransome, R. D. and Ravel, O. and Real, J. S. and Renard, F. and Roblin, Y. and Rowntree, D. and Rutledge, G. and Rutt, P. M. and Saha, A. and Saito, T. and Sarty, A. J. and Serdarevic, A. and Smith, T. and Smirnov, G. and Soldi, K. and Sorokin, P. and Souder, P. A. and Suleiman, R. and Templon, J. A. and Terasawa, T. and Tieulent, R. and Tomasi-Gustaffson, E. and Tsubota, H. and Ueno, H. and Ulmer, P. E. and Urciuoli, G. M. and Vanderhaeghen, M. and Van De Vyver, R. and Van der Meer, R. L. J. and Vernin, P. and Vlahovic, B. and Voskanyan, H. and Voutier, E. and Watson, J. W. and Weinstein, L. B. and Wijesooriya, K. and Wilson, R. and Wojtsekhowski, B. B. and Zainea, D. G. and Zhang, W-M. and Zhao, J. and Zhou, Z. -L.},
abstractNote = {We report a Virtual Compton Scattering study of the proton at low CM energies. We have determined the structure functions P{sub LL} - P{sub TT}/{epsilon} and P{sub LT}, and the electric and magnetic Generalized Polarizabilities (GPs) {alpha}{sub E}(Q{sup 2}) and {beta}{sub M}(Q{sup 2}) at momentum transfer Q{sup 2} = 0.92 and 1.76 GeV{sup 2}. The electric GP shows a strong fall-off with Q{sup 2}, 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 Q{sup 2}, compensated at higher Q{sup 2} by a paramagnetic contribution from {pi}N intermediate states.},
doi = {10.1103/PhysRevLett.93.122001},
url = {https://www.osti.gov/biblio/834099}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 12,
volume = 93,
place = {United States},
year = {2004},
month = {9}
}

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