Author: "Hyde-Wright, C E." / Language: english - Searchworks@Jio Institute Digital Library Search Results

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65 results on '"Hyde-Wright, C E."'

1. Evidence for a backward peak in the γd → π0d cross section near the η threshold

Author: Ilieva, Y., Berman, B. L., Kudryavtsev, A. E., Strakovsky, I. I., Tarasov, V. E., Amarian, M., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Batourine, V., Battaglieri, M., Bedlinskiy, I., Bellis, M., Benmouna, N., Biselli, A. S., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Chen, S., Cole, P. L., Collins, P., Coltharp, P., Crabb, D., Crede, V., De Masi, R., De Sanctis, E., De Vita, R., Degtyarenko, P. V., Deur, A., Dickson, R., Djalali, C., Dodge, G. E., Donnelly, J., Doughty, D., Dugger, M., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Eugenio, P., Fedotov, G., Feldman, G., Funsten, H., Garçon, M., Gavalian, G., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gonenc, A., Gothe, R. W., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, R. S., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C. E., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., Jo, H. S., Joo, K., Juengst, H. G., Kalantarians, N., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Kossov, M., Krahn, Z., Kramer, L. H., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Lachniet, J., Laget, J. M., Langheinrich, J., Lawrence, D., Livingston, K., Lu, H., MacCormick, M., Markov, N., McKinnon, B., Mecking, B. A., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Mirazita, M., Miskimen, R., Mokeev, V., Moriya, K., Morrow, S. A., Moteabbed, M., Munevar, E., Mutchler, G. S., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Paterson, C., Pierce, J., Pivnyuk, N., Pogorelko, O., Pozdniakov, S., Price, J. W., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, G., Ripani, M., Ritchie, B. G., Ronchetti, F., Rosner, G., Rossi, P., Sabatié, F., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Shvedunov, N. V., Smith, E. S., Smith, L. C., Sober, D. I., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strauch, S., Taiuti, M., Tedeschi, D. J., Thoma, U., Tkabladze, A., Tkachenko, S., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Watts, D. P., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Zana, L., Zhang, J., Zhao, B., Zhao, Z., and The CLAS Collaboration
Published: 2010
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2. Exclusive ρ0 electroproduction on the proton at CLAS

Author: Morrow, S. A., Guidal, M., Garçon, M., Laget, J. M., Smith, E. S., Adams, G., Adhikari, K. P., Aghasyan, M., Amaryan, M. J., Anghinolfi, M., Asryan, G., Audit, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Barrow, S., Battaglieri, M., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., Biselli, A. S., Blaszczyk, L., Bonner, B. E., Bookwalter, C., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Carnahan, B., Casey, L., Cazes, A., Chen, S., Cheng, L., Cole, P. L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crannell, H., Crede, V., Cummings, J. P., Dale, D., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Denizli, H., Dennis, L., Deur, A., Dhamija, S., Dharmawardane, K. V., Dhuga, K. S., Dickson, R., Didelez, J. -P., Djalali, C., Dodge, G. E., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Fersch, R., Feuerbach, R. J., Forest, T. A., Fradi, A., Gavalian, G., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gohn, W., Gordon, C. I. O., Gothe, R. W., Graham, L., Griffioen, K. A., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, H., Hanretty, C., Hardie, J., Hassall, N., Heddle, D., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hourany, E., Hyde-Wright, C. E., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., Jo, H. S., Johnstone, J. R., Joo, K., Juengst, H. G., Kalantarians, N., Keller, D., Kellie, J. D., Khandaker, M., Khetarpal, P., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Kossov, M., Kramer, L. H., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Kuznetsov, V., Lachniet, J., Langheinrich, J., Lawrence, D., Li, Ji, Livingston, K., Lu, H. Y., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., McCracken, M., McKinnon, B., McNabb, J. W. C., Mecking, B. A., Mehrabyan, S., Melone, J. J., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Morand, L., Moreno, B., Moriya, K., Moteabbed, M., Mueller, J., Munevar, E., Mutchler, G. S., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., O’Rielly, G. V., Osipenko, M., Ostrovidov, A. I., Park, K., Park, S., Pasyuk, E., Paterson, C., Anefalos Pereira, S., Philips, S. A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Popa, I., Pozdniakov, S., Preedom, B. M., Price, J. W., Procureur, S., Prok, Y., Protopopescu, D., Qin, L. M., Raue, B. A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Rubin, P. D., Sabatié, F., Saini, M. S., Salamanca, J., Salgado, C., Santoro, J. P., Sapunenko, V., Schott, D., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Sharov, D., Shvedunov, N. V., Skabelin, A. V., Smith, L. C., Sober, D. I., Sokhan, D., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., Taiuti, M., Tedeschi, D. J., Tkabladze, A., Tkachenko, S., Todor, L., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Watts, D. P., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Yurov, M., Zana, L., Zhang, J., Zhao, B., Zhao, Z. W., and The CLAS Collaboration
Published: 2009
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3. Deeply virtual and exclusive electroproduction of ω-mesons

Author: Morand, L., Doré, D., Garçon, M., Guidal, M., Laget, J. -M., Morrow, S., Sabatié, F., Smith, E., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Audit, G., Avakian, H., Bagdasaryan, H., Ball, J., Ball, J. P., Baltzell, N. A., Barrow, S., Batourine, V., Battaglieri, M., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., Biselli, A. S., Boiarinov, S., Bonner, B. E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Cazes, A., Chen, S., Cole, P. L., Cords, D., Corvisiero, P., Crabb, D., Cummings, J. P., De Sanctis, E., DeVita, R., Degtyarenko, P. V., Denizli, H., Dennis, L., Deur, A., Dharmawardane, K. V., Dhuga, K. S., Djalali, C., Dodge, G. E., Donnelly, J., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Eugenio, P., Fatemi, R., Feldman, G., Fersch, R. G., Feuerbach, R. J., Funsten, H., Gavalian, G., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. -X., Goetz, J. T., Gordon, C. I. O., Gothe, R. W., Griffioen, K. A., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hakobyan, R. S., Hardie, J., Heddle, D., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C. E., Ilieva, Y., Ireland, D. G., Ito, M. M., Jenkins, D., Jo, H. -S., Joo, K., Juengst, H. G., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Kossov, M., Kubarovski, V., Kramer, L. H., Kuhn, S. E., Kuhn, J., Lachniet, J., Langheinrich, J., Lawrence, D., Lee, T., Li, Ji, Livingston, K., Marchand, C., Maximon, L. C., McAleer, S., McKinnon, B., McNabb, J. W. C., Mecking, B. A., Mehrabyan, S., Melone, J. J., Mestayer, M. D., Meyer, C. A., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Mueller, J., Mutchler, G. S., Napolitano, J., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niyazov, R. A., Nozar, M., O’Rielly, G. V., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Philips, S. A., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Popa, I., Pozdniakov, S., Preedom, B. M., Price, J. W., Prok, Y., Protopopescu, D., Raue, B. A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B. G., Ronchetti, F., Rosner, G., Rossi, P., Rubin, P. D., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Shaw, J., Skabelin, A. V., Smith, L. C., Sober, D. I., Stavinsky, A., Stepanyan, S., Stepanyan, S. S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., Taiuti, M., Tedeschi, D. J., Thoma, U., Tkabladze, A., Todor, L., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Zana, L., and The CLAS Collaboration
Published: 2005
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4. Evidence for a backward peak in the gamma d -> pi(0)d cross section near the eta threshold

Author: Ilieva, Y., Berman, B. L., Kudryavtsev, A. E., Strakovsky, I. I., Tarasov, V. E., Amarian, M., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Batourine, V., Battaglieri, M., Bedlinskiy, I., Bellis, M., Benmouna, N., Biselli, A. S., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Chen, S., Cole, P. L., Collins, P., Coltharp, P., Crabb, D., Crede, V., De Masi, R., De Sanctis, E., De Vita, R., Degtyarenko, P. V., Deur, A., Dickson, R., Djalali, C., Dodge, G. E., Donnelly, J., Doughty, D., Dugger, M., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Eugenio, P., Fedotov, G., Feldman, G., Funsten, H., Garçon, M., Gavalian, G., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gonenc, A., Gothe, R. W., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, R. S., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde Wright, C. E., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., H. S., Jo, Joo, K., Juengst, H. G., Kalantarians, N., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Kossov, M., Krahn, Z., Kramer, L. H., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Lachniet, J., Laget, J. M., Langheinrich, J., Lawrence, D., Livingston, K., Lu, H., Maccormick, M., Markov, N., Mckinnon, B., Mecking, B. A., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Mirazita, M., Miskimen, R., Mokeev, V., Moriya, K., Morrow, S. A., Moteabbed, M., Munevar, E., Mutchler, G. S., Nadel Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Paterson, C., Pierce, J., Pivnyuk, N., Pogorelko, O., Pozdniakov, S., Price, J. W., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, Giovanni, Ripani, M., Ritchie, B. G., Ronchetti, F., Rosner, G., Rossi, P., Sabatié, F., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Shvedunov, N. V., Smith, E. S., Smith, L. C., Sober, D. I., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strauch, S., Taiuti, MAURO GINO, Tedeschi, D. J., Thoma, U., Tkabladze, A., Tkachenko, S., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Watts, D. P., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.
Subjects: Nuclear and High Energy Physics, D ELASTIC-SCATTERING, COHERENT PION-PHOTOPRODUCTION, D ELASTIC-SCATTERING, DIBARYON RESONANCES, NEAR-THRESHOLD, MESIC NUCLEUS, BOUND-STATES, DEUTERON, MESON, SIGNATURE, REGION, DIBARYON RESONANCES, Nuclear Theory, MESIC NUCLEUS, COHERENT PION-PHOTOPRODUCTION, Resonance (particle physics), BOUND-STATES, REGION, Nuclear physics, Pion, Intermediate state, NEAR-THRESHOLD, Nuclear Experiment, Physics, Range (particle radiation), Eta meson, SIGNATURE, DEUTERON, Amplitude, High Energy Physics::Experiment, MESON, Nucleon, Excitation
Abstract: High-quality cross sections for the reaction gamma+d->pi^0+d have been measured using the CLAS at Jefferson Lab over a wide energy range near and above the eta-meson photoproduction threshold. At backward c.m. angles for the outgoing pions, we observe a resonance-like structure near E_gamma=700 MeV. Our model analysis shows that it can be explained by eta excitation in the intermediate state. The effect is the result of the contribution of the N(1535)S_11 resonance to the amplitudes of the subprocesses occurring between the two nucleons and of a two-step process in which the excitation of an intermediate eta meson dominates., Comment: slightly modified title, additional paragraph and a table (Table 2) added on p. 5; to be submitted to EPJA, 6 pages, 3 figures
Published: 2010

5. Electroproduction of ϕ(1020) mesons at 1.4⩽Q2⩽3.8 GeV2 measured with the CLAS spectrometer

Author: Santoro, J. P., Smith, E. S., Garcon, M., Guidal, M., Laget, J. M., Weiss, C., Adams, G., Amaryan, M. J., Anghinolfi, M., Asryan, G., Audit, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J., Ball, J. P., Baltzell, N. A., Barrow, S., Battaglieri, M., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., Biselli, A. S., Blaszczyk, L., Bonner, B. E., Bookwalter, C., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bueltmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Casey, L., Cazes, A., Chen, S., Cheng, L., Cole, P. L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crannell, H., Crede, V., Cummings, J. P., Dale, D., Dashyan, N., De Masi, R., De Sanctis, E., De Vita, R., Degtyarenko, P. V., Denizli, H., Dennis, L., Deur, A., Dhamija, S., Dharmawardane, K. V., Dhuga, K. S., Dickson, R., Djalali, C., Dodge, G. E., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feuerbach, R. J., Ficenec, J., Forest, T. A., Fradi, A., Funsten, H., Gavalian, G., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gohn, W., Gordon, C. I. O., Gothe, R. W., Graham, L., Griffioen, K. A., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, H., Hanretty, C., Hardie, J., Hassall, N., Heddle, D., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C. E., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., Jo, H. S., Johnstone, J. R., Joo, K., Juengst, H. G., Kalantarians, N., Keller, D., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Kossov, M., Krahn, Z., Kramer, L. H., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Kuznetsov, V., Lachniet, J., Langheinrich, J., Lawrence, D., Li, Ji, Livingston, K., Lu, H. Y., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., McKinnon, B., McNabb, J. W. C., Mecking, B. A., Mehrabyan, S., Melone, J. J., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Morand, L., Moreno, B., Moriya, K., Morrow, S. A., Moteabbed, M., Mueller, J., Munevar, E., Mutchler, G. S., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., O'Rielly, G. V., Osipenko, M., Ostrovidov, A. I., Park, K., Park, S., Pasyuk, E., Paterson, C., Pereira, S. Anefalos, Philips, S. A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Popa, I., Pozdniakov, S., Preedom, B. M., Price, J. W., Procureur, S., Prok, Y., Protopopescu, D., Qin, L. M., Raue, B. A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatie, F., Saini, M. S., Salamanca, J., Salgado, C., Sapunenko, V., Schott, D., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Sharov, D., Shvedunov, N. V., Skabelin, A. V., Smith, L. C., Sober, D. I., Sokhan, D., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., TaiUti, M., Tedeschi, D. J., Tkabladze, A., Tkachenko, S., Todor, L., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Watts, D. P., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Yurov, M., Zana, L., Zhang, J., Zhao, B., and Zhao, Z. W.
Subjects: Nuclear and High Energy Physics
Abstract: Electroproduction of exclusive phi vector mesons has been studied with the CLAS detector in the kinematic range 1.4
Published: 2008
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6. First measurement of target and double spin asymmetries for ep -> ep pi(0) in the nucleon resonance region above the delta(1232)

Author: Biselli, A. S., Burkert, V. D., Amaryan, M. J., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Battaglieri, M., Bedlinskiy, I., Bellis, M., Benmouna, N., Berman, B. L., Blaszczyk, L., Bookwalter, C., Boiarinov, S., Bosted, P., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bueltmann, S., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Casey, L., Chen, S., Cheng, L., Cole, P. L., Collins, P., Coltharp, P., Crabb, D., Crede, V., Dale, D., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Deur, A., Dhamija, S., Dickson, R., Djalali, C., Dodge, G. E., Doughty, D., Dugger, M., Dzyubak, O. P., Egiyan, H., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fedotov, G., Feuerbach, R., Fersch, R., Forest, T. A., Fradi, A., Garcon, M., Gavaliann, G., Gevorgyan, N., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. X., Goetz, J. T., Gohn, W., Gothe, R. W., Graham, L., Griffioen, K. A., Guidal, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C. E., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., Jo, H. S., Johnstone, J. R., Joo, K., Juengst, H. G., Kalantarians, N., Keller, D., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Kossov, M., Krahn, Z., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Kuznetsov, V., Lachniet, J., Laget, J. M., Langheinrich, J., Lawrence, D., Livingston, K., Lu, H. Y., MacCormick, M., Markov, N., Mattione, P., McKinnon, B., McNabb, J. W. C., Mecking, B. A., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrow, S. A., Moteabbed, M., Munevar, E., Mutchler, G. S., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., Osipenko, M., Ostrovidov, A. I., Park, K., Park, S., Pasyuk, E., Paterson, C., Pereira, S. Anefalos, Pierce, J., Pivnyuk, N., Pogorelko, O., Pozdniakov, S., Price, J. W., Prok, Y., Protopopescu, D., Raue, B. A., Ricco, G., Ripani, M., Ritchie, B. G., Rosner, G., Rossi, P., Sabatie, F., Saini, M. S., Salamanca, J., Salgado, C., Santoro, J. P., Sapunenko, V., Schott, D., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Sharov, D., Shvedunov, N. V., Smith, E. S., Sober, D. I., Sokhan, D., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., Taiuti, M., Tedeschi, D. J., Tkabladze, A., Tkachenko, S., Todor, L., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Watts, D. P., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Yurov, M., Zana, L., Zhang, J., Zhao, B., and Zhao, Z. W.
Published: 2008

7. An Electromagnetic Calorimeter for the JLab Real Compton Scattering Experiment

Author: Hamilton, D. J., Shahinyan, A., Wojtsekhowski, B., Annand, J. R. M., Chang, T. -H., Chudakov, E., Danagoulian, A., Degtyarenko, P., Egiyan, K., Gilman, R., Gorbenko, V., Hines, J., Hovhannisyan, E., Hyde-Wright, C. E., de Jager, C. W., Ketikyan, A., Mamyan, V. H., Michaels, R., Nathan, A. M., Nelyubin, V., Rachek, I., Roedelbrom, M., Petrosyan, A., Pomatsalyuk, R., Popov, V., Segal, J., Shestakov, Y., Templon, J., and Voskanyan, H.
Subjects: Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: A lead-glass hodoscope calorimeter that was constructed for use in the Jefferson Lab Real Compton Scattering experiment is described. The detector provides a measurement of the coordinates and the energy of scattered photons in the GeV energy range with resolutions of 5 mm and 6%/\sqrt(E{\gamma} [GeV]). Features of both the detector design and its performance in the high luminosity environment during the experiment are presented., Comment: text updated according to published version
Published: 2007

8. Q*2 DEPENDENCE OF THE S(11)(1535) PHOTOCOUPLING AND EVIDENCE FOR A P-WAVE RESONANCE IN ETA ELECTROPRODUCTION

Author: Denizli, H., Mueller, J., Dytman, S., Leber, M. L., Levine, R. D., Miles, J., Kim, K. Y., Adams, G., Amaryan, M. J., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Barrow, S., Batourine, V., Battaglieri, M., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Bianchi, N., Biselli, A. S., Bonner, B. E., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Cetina, C., Chen, S., Cole, P. L., Coleman, A., Collins, P., Coltharp, P., Cords, D., Corvisiero, Pietro, Crabb, D., Crede, V., Cummings, J. P., Dashyan, N., De Vita, R., De Sanctis, E., Degtyarenko, P. V., Dennis, L., Deur, A., Dhuga, K. S., Dickson, R., Djalali, C., Dodge, G. E., Donnelly, J., Doughty, D., Dragovitsch, P., Dugger, M., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., El Fassi, L., Elouadrhiri, L., Empl, A., Eugenio, P., Farhi, L., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R. J., Forest, T. A., Frolov, V., Funsten, H., Gaff, S. J., Garçon, M., Gavalian, G., Gilfoyle, G. P., Giovanetti, K. L., Girard, P., Girod, F. X., Goetz, J. T., Gonenc, A., Gothe, R. W., Griffioen, K. A., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hakobyan, R. S., Hardie, J., Heddle, D., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hu, J., Hyde Wright, C. E., Ilieva, Y., Ireland, D. G., Ishkhanov, B. S., Isupov, E. L., Ito, M. M., Jenkins, D., H. S., Jo, Joo, K., Juengst, H. G., Kalantarians, N., Kelley, J. H., Kellie, J. D., Khandaker, M., Kim, K., Kim, W., Klein, A., Klein, F. J., Klusman, M., Kossov, M., Kramer, L. H., Kubarovsky, V., Kuhn, J., Kuhn, S. E., Kuleshov, S. V., Lachniet, J., Laget, J. M., Langheinrich, J., Lawrence, D., Livingston, K., H. Y., Lu, Lukashin, K., Maccormick, M., Manak, J. J., Markov, N., Mcaleer, S., Mckinnon, B., Mcnabb, J. W. C., Mecking, B. A., Mestayer, M. D., Meyer, C. A., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Moriya, K., Morrow, S. A., Moteabbed, M., Muccifora, V., Mutchler, G. S., Nadel Turonski, P., Napolitano, J., Nasseripour, R., Nelson, S. O., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niroula, M. R., Niyazov, R. A., Nozar, M., O'Rielly, G. V., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Paterson, C., Peterson, G., Philips, S. A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Pozdniakov, S., Preedom, B. M., Price, J. W., Prok, Y., Protopopescu, D., Qin, L. M., Raue, B. A., Riccardi, G., Ricco, Giovanni, Ripani, M., Ritchie, B. G., Ronchetti, F., Rosner, G., Rossi, P., Rowntree, D., Rubin, P. D., Sabatié, F., Sabourov, K., Salamanca, J., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Shafi, A., Sharabian, Y. G., Shaw, J., Shvedunov, N. V., Simionatto, S., Skabelin, A. V., Smith, E. S., Smith, L. C., Sober, D. I., Sokhan, D., Spraker, M., Stavinsky, A., Stepanyan, S. S., Stepanyan, S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., Taiuti, MAURO GINO, Taylor, S., Tedeschi, D. J., Thoma, U., Thompson, R., Tkabladze, A., Tkachenko, S., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Wang, K., Watts, D. P., Weinstein, L. B., Weller, H., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Yun, J., Zana, L., Zhang, J., Zhao, B., and Zhao, Z. W.
Subjects: BARYON RESONANCE, FORM-FACTORS, SIGMA-T, S11 1535 RESONANCE, MESON PHOTOPRODUCTION, ISOBAR MODEL, QUARK-MODEL, PROTON, S11(1535), S11 1535 RESONANCE, QUARK-MODEL, MESON PHOTOPRODUCTION, BARYON RESONANCE, ISOBAR MODEL, FORM-FACTORS, SIGMA-T, S11(1535), REGION, PROTON, REGION
Published: 2007

9. Measurements of the electron-helicity dependent cross sections of deeply virtual compton scattering with CEBAF at 12 GeV

Author: Roche, J., Hyde-Wright, C. E., Michel, B., Muñoz Camacho, C., Gavalian, G., Amarian, M., Bultmann, S., Dodge, G.E., Juengst, H., Lachniet, J., Radyushkin, A., Ulmer, P.E., Weinstein, L.B., Ball, J., Bertin, P.Y., Brossard, M., De Masi, R., Garçon, M., Girod, F.-X., Guidal, M., Mac Cormick, M., Mazouz, M., Niccolai, S., Pire, B., Procureur, S., Sabatié, F., Voutier, E., Wallon, S., Camsonne, A., Chen, J.-P., Chudakov, E., Deur, A., Gaskell, D., Higinbotham, D., De Jager, C., LeRose, J., Hansen, O., Michaels, R., Nanda, S., Saha, A., Stepanyan, S., Wotjtsekhowski, B., Markowitz, P.E.C., Zheng, X., Gilman, R., Jiang, X., Kuchina, E., Ransome, R., Deshpande, A., Liyanage, N., Choi, Seonho, Kang, Hyekoo, Lee, Byungwuek, Oh, Yumin, Song, Jongsog, Sirca, S., 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), 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, 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: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Jefferson Lab PAC-30 proposal. 43 pages, 13 figures - Proposition d'expérience; We propose precision measurements of the helicity-dependent and helicity independent cross sections for the ep->epg reaction in Deeply Virtual Compton Scattering (DVCS) kinematics. DVCS scaling is obtained in the limits Q^2>>Lambda_{QCD}^2, x_Bj fixed, and -\Delta^2=-(q-q')^22 GeV, and -\Delta^21 GeV^2. We will use our successful technique from the 5.75 GeV Hall A DVCS experiment (E00-110). With polarized 6.6, 8.8, and 11 GeV beams incident on the liquid hydrogen target, we will detect the scattered electron in the Hall A HRS-L spectrometer (maximum central momentum 4.3 GeV/c) and the emitted photon in a slightly expanded PbF_2 calorimeter. In general, we will not detect the recoil proton. The H(e,e'g)X missing mass resolution is sufficient to isolate the exclusive channel with 3% systematic precision.
Published: 2006

10. 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

11. Measurement of the proton spin structure function $g_1(x,Q^2)$ for $Q2$ from 0.15 to 1.6 GeV$^2$ with CLAS

Author: Fatemi, R., Skabelin, A. V., Burkert, V. D., Crabb, D., Vita, R., Kuhn, S. E., Minehart, R., Adams, G., Anciant, E., Anghinolfi, M., Asavapibhop, B., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Ball, J. P., Barrow, S., Battaglieri, M., Beard, K., Bektasoglu, M., Bellis, M., Bertozzi, W., Bianchi, N., Biselli, A. S., Boiarinov, S., Bonner, B. E., Bosted, P. E., Bouchigny, S., Bradford, R., Branford, D., Brooks, W. K., Butuceanu, C., Calarco, J. R., Carman, D. S., Carnahan, B., Cetina, C., Ciciani, L., Clark, R., Cole, P. L., Coleman, A., Connelly, J., Cords, D., Corvisiero, P., Crannell, H., Cummings, J. P., Sanctis, E., Degtyarenko, P. V., Denizli, H., Dennis, L., Dharmawardane, K. V., Dhuga, K. S., Djalali, C., Dodge, G. E., Doughty, D., Dragovitsch, P., Dugger, M., Dytman, S., Eckhause, M., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Empl, A., Eugenio, P., Farhi, L., Feuerbach, R. J., Freyberger, A., Ficenec, J., Forest, T. A., Frolov, V., Funsten, H., Gaff, S. J., Garçon, M., Gavalian, G., Gilad, S., Gilfoyle, G. P., Giovanetti, K. L., Girard, P., Gordon, C. I. O., Griffioen, K. A., Guidal, M., Guillo, M., Guo, L., Gyurjyan, V., Hadjidakis, C., Hancock, D., Hardie, J., Heddle, D., Heimberg, P., Hersman, F. W., Hicks, K., Hicks, R. S., Holtrop, M., Hu, J., Hyde-Wright, C. E., Ilieva, Y., Ito, M. M., Jenkins, D., Joo, K., Keith, C., Kelley, J. H., Kellie, J. D., Khandaker, M., Kim, K. Y., Kim, K., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Klusman, M., Kossov, M., Koubarovski, V., Kramer, L. H., Kuang, Y., Kuhn, J., Lachniet, J., Laget, J. M., Lawrence, D., Li, J., Livingston, K., Longhi, A., Lukashin, K., Major, W., Manak, J. J., Marchand, C., Mcaleer, S., Mcnabb, J. W. C., Mecking, B. A., Mehrabyan, S., Mestayer, M. D., Meyer, C. A., Mikhail Osipenko, Mirazita, M., Miskimen, R., Morand, L., Morrow, S. A., Muccifora, V., Mueller, J., Mutchler, G. S., Napolitano, J., Nasseripour, R., Nelson, S. O., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niyazov, R. A., Nozar, M., O Brien, J. T., O Rielly, G. V., Osipenko, M., Park, K., Pasyuk, E., Peterson, G., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Pozdniakov, S., Preedom, B. M., Price, J. W., Prok, Y., Protopopescu, D., Qin, L. M., Raue, B. A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B. G., Rock, S. E., Ronchetti, F., Rossi, P., Rowntree, D., Rubin, P. D., Sabatié, F., Sabourov, K., Salgado, C., Santoro, J. P., Sapunenko, V., Sargsyan, M., Schumacher, R. A., Seely, M., Serov, V. S., Sharabian, Y. G., Shaw, J., Simionatto, S., Smith, E. S., Smith, T., Smith, L. C., Sober, D. I., Sorrel, L., Spraker, M., Stavinsky, A., Stepanyan, S., Stoler, P., Strauch, S., Taiuti, M., Taylor, S., Tedeschi, D. J., Thoma, U., Thompson, R., Todor, L., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Wang, K., Weinstein, L. B., Weller, H., Weygand, D. P., Whisnant, C. S., Wolin, E., Wood, M. H., Yegneswaran, A., Yun, J., Zhang, B., Zhao, J., Zhou, Z., 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), and CLAS
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract: Double-polarization asymmetries for inclusive ep scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally polarized NH3 target in the CLAS detector. The polarized structure function g(1)(x,Q2) was extracted throughout the nucleon resonance region and into the deep inelastic regime, for Q(2)=0.15-1.64 GeV2. The contributions to the first moment Gamma(1)(Q2)= integral g(1)(x,Q2) dx were determined up to Q(2)=1.2 GeV2. Using a parametrization for g(1) in the unmeasured low x regions, the complete first moment was estimated over this Q2 region. A rapid change in Gamma(1) is observed for Q21 GeV2, with a sign change near Q(2)=0.3 GeV2, indicating dominant contributions from the resonance region. At Q(2)=1.2 GeV2 our data are below the perturbative QCD evolved scaling value.
Published: 2003

12. Measurement of ep→e^{′}pπ^{+}π^{-} and Baryon Resonance Analysis

Author: Ripani, M., Burkert, V. D., Mokeev, V., Battaglieri, M., De Vita, R., Golovach, E., Taiuti, MAURO GINO, Adams, G., Anciant, E., Anghinolfi, M., Asavapibhop, B., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Ball, J. P., Barrow, S., Beard, K., Bektasoglu, M., Bellis, M., Berman, B. L., Bianchi, N., Biselli, A. S., Boiarinov, S., Bonner, B. E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Calarco, J. R., Carman, D. S., Carnahan, B., Cazes, A., Cetina, C., Ciciani, L., Cole, P. L., Coleman, A., Cords, D., Corvisiero, Pietro, Crabb, D., Crannell, H., Cummings, J. P., De Sanctis, E., Degtyarenko, P. V., Denizli, H., Dennis, L., Dharmawardane, K. V., Djalali, C., Dodge, G. E., Doughty, D., Dragovitsch, P., Dugger, M., Dytman, S., Eckhause, M., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Empl, A., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R. J., Ficenec, J., Forest, T. A., Funsten, H., Gaff, S. J., Gai, M., Garçon, M., Gavalian, G., Gilad, S., Gilfoyle, G. P., Giovanetti, K. L., Girard, P., Griffioen, K., Guidal, M., Guillo, M., Guo, L., Gyurjyan, V., Hadjidakis, C., Hardie, J., Heddle, D., Heimberg, P., Hersman, F. W., Hicks, K., Hicks, R. S., Holtrop, M., Hu, J., Hyde Wright, C. E., Ishkhanov, B., Ito, M. M., Jenkins, D., Joo, K., Kelley, J. H., Kellie, J. D., Khandaker, M., Kim, K. Y., Kim, K., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Klusman, M., Kossov, M., Kramer, L. H., Kuang, Y., Kuhn, S. E., Kuhn, J., Lachniet, J., Laget, J. M., Lawrence, D., Ji, Li, Livingston, K., Longhi, A., Lukashin, K., Manak, J. J., Marchand, C., Mcaleer, S., Mccarthy, J., Mcnabb, J. W. C., Mecking, B. A., Mestayer, M. D., Meyer, C. A., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Morand, L., Morrow, S. A., Mozer, M. U., Muccifora, V., Mueller, J., Murphy, L. Y., Mutchler, G. S., Napolitano, J., Nasseripour, R., Nelson, S. O., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niyazov, R. A., Nozar, M., O’Rielly, G. V., Opper, A. K., Osipenko, M., Park, K., Pasyuk, E., Peterson, G., Philips, S. A., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Pozdniakov, S., Preedom, B. M., Price, J. W., Prok, Y., Protopopescu, D., Qin, L. M., Quinn, B., Raue, B. A., Riccardi, G., Ricco, Giovanni, Ritchie, B. G., Ronchetti, F., Rossi, P., Rowntree, D., Rubin, P. D., Sabatié, F., Sabourov, K., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Shafi, A., Sharabian, Y. G., Shaw, J., Simionatto, S., Skabelin, A. V., Smith, E. S., Smith, L. C., Sober, D. I., Spraker, M., Stavinsky, A., Stepanyan, S., Stoler, P., Strakovsky, I. I., Taylor, S., Tedeschi, D. J., Thoma, U., Thompson, R., Todor, L., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Wang, K., Weinstein, L. B., Weller, H., Weygand, D. P., Whisnant, C. S., Wolin, E., Wood, M. H., Yegneswaran, A., Yun, J., Zhang, B., Zhao, J., and Zhou, Z.
Published: 2003

13. The ep$\rightarrow$e'p$\eta$ reaction at and above the S$_{11}$(1535) baryon resonance

Author: Thompson, R., Dytman, S., Kim, K Y., Mueller, J., Adams, G S., Amaryan, M J., Anciant, E., Anghinolfi, M., Asavapibhop, B., Auger, T., Audit, G., Avakian, H., Barrow, S., Battaglieri, M., Beard, K., Bektasoglu, M., Berman, B L., Bertozzi, W., Bianchi, N., Biselli, A., Boiarinov, S., Bonner, B E., Briscoe, W J., Brooks, W., Burkert, V D., Calarco, J R., Capitani, G., Carman, D S., Carnahan, B., Cetina, C., Cole, P L., Coleman, A., Connelly, J., Cords, D., Corvisiero, P., Crabb, D., Crannell, H., Cummings, J., Day, D., Degtyarenko, P V., Demirchyan, R A., Dennis, L C., Deppman, A., de Sanctis, E., de Vita, R., Dhuga, K S., Djalali, C., Dodge, G E., Doughty, D., Dragovitsch, P., Dugger, M., Eckhause, M., Efremenko, y V., Egiyan, H., Egiyan, K S., Elouadrhiri, L., Farhi, L., Feuerbach, R J., Ficenec, J., Fissum, K., Freyberger, A., Funsten, H., Gai, M., Gavrilov, V B., Gilfoyle, G P., Giovanetti, K., Gilad, S., Girard, Pascal, Griffioen, K A., Guidal, M., Guillo, M., Gyurjyan, V., Hancock, D., Hardie, J., Heddle, D., Heisenberg, J., Hersman, F W., Hicks, K., Hicks, R S., Holtrop, M., Hyde-Wright, C E., Ito, M M., Jenkins, D., Joo, K., Kane, J., Khandaker, M., Kim, W., Klein, A., Klein, F J., Klusman, M., Kossov, M., Kuhn, S E., Kuang, Y., Laget, J M., Lawrence, D., Leskin, G A., Longhi, A., Loukachine, K., Lucas, M., Magahiz, R., Major, R W., Manak, J J., Marchand, C., Matthews, S K., Maximon, L., Mcaleer, S., Mccarthy, J., Mcnabb, J W C., Mecking, B A., Mestayer, M D., Meyer, C A., Minehart, R., Mirazita, M., Miskimen, R., Muccifora, V., Murphy, L., Mutchler, G S., Napolitano, J., Niyazov, R A., Ohandjanyan, M S., O'Brien, J T., Opper, A., Patois, Y., Perrot-Kunne, F., Peterson, G A., Philips, S., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Preedom, B M., Price, J W., Qin, L M., Raue, B A., Reolon, a R., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B G., Ronchetti, F., Rossi, P., Roudot, F., Rowntree, D., Rubin, P D., Salgado, C W., Sanzone, M., Sapunenko, V., Sarty, A., Sargsyan, M., Schumacher, R A., Shafi, A., Sharabian, y G., Shaw, J., Shuvalov, S M., Skabelin, A., Smith, T., Smith, C., Smith, E S., Sober, D I., Spraker, M., Stepanyan, S., Stoler, P., Taiuti, M., Taragin, M F., Taylor, S., Tedeschi, D., Tung, T Y., Vineyard, M F., Vlassov, A., Weller, H., Weinstein, L B., Welsh, R., Weygand, D P., Whisnant, S., Witkowski, M., Wolin, E., Yegneswaran, A., Yun, J., Zhou, Z., Zhao, J., 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), CLAS, and Robert, Suzanne
Subjects: [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment
Abstract: New cross sections for the reaction e p -> ep eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q^2 = 0.25--1.5 GeV^2. This large kinematic range allows extraction of important new information about response functions, photocouplings, and eta N coupling strengths of baryon resonances. Expanded W coverage shows sharp structure at W \~ 1.7 GeV; this is shown to come from interference between S and P waves and can be interpreted in terms of known resonances. Improved values are derived for the photon coupling amplitude for the S11(1535) resonance.
Published: 2001

14. 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
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15. 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
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16. 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

17. Virtual Compton scattering under $\pi^{0}$ threshold at $Q^{2} = 0.33 GeV ^{2}

Author: Roche, J, Bartsch, P, Berthot, J, Bertin, P Y, Breton, V, Böglin, W, Böhm, R, Caprano, T, D'Hose, N, De Meyer, G, Degrande, N, Derber, S, Distler, M, Ducret, J E, Edelhoff, R, Ewald, I, Fonvieille, H, Friedrich, J M, Geiges, R, Gousset, T, Guichon, P A M, Holvoet, H, Hyde-Wright, C E, Jennewein, P, Kahrau, M, Kerhoas, S, Korn, M, Kramer, H M, Krygier, K W, Kunde, V, Lannoy, B, Lhuillier, D, Liesenfeld, A, Marchand, C, Marchand, D, Martino, J, Merkel, H, Merle, K, Merle, P, Mougey, J, Neuhausen, R, Offermann, E, Pospischil, T, Quéméner, G, Ravel, O, Roblin, Y, Rosner, G, Ryckbosch, D, Sauer, P U, Schardt, S, Schmieden, H, Tamas, G, Tytgat, M H G, Van Hoorebeke, L, Van de Vyver, R, Van de Wiele, J, Vanderhaeghen, M, Vernin, P, Wagner, A, Walcher, T, and Wolf, S
Subjects: Particle Physics - Experiment
Published: 1999

18. Measurement of the deuteron spin structure function $g_{1}^{d}(x)$ for $1 (GeV/c)^{2} < Q^{2} < 40 (GeV/c)^{2}$

Author: Anthony, P L, Arnold, R G, Averett, T, Band, H R, Berisso, M C, Borel, H, Bosted, P E, Bültmann, S, Buénerd, M, Chupp, T E, Churchwell, S, Court, G R, Crabb, D, Day, D, Decowski, P, De Pietro, P, Erbacher, R D, Erickson, R, Feltham, A, Fonvieille, H, Frlez, E, Gearhart, R A, Ghazikhanian, V, Gómez, J, Griffioen, K A, Harris, C, Houlden, M A, Hughes, E W, Hyde-Wright, C E, Igo, G, Incerti, S, Jensen, J, Johnson, J R, King, P M, Kolomensky, Yu G, Kuhn, S E, Lindgren, R, Lombard-Nelsen, R M, Marroncle, J, McCarthy, J, McKee, P M, Meyer, W T, Mitchell, G, Mitchell, J, Olson, M N, Penttilä, S, Peterson, G, Petratos, G G, Pitthan, R, Pocanic, D, Prepost, R, Prescott, C, Qin, L M, Raue, B A, Reyna, D, Rochester, L S, Rock, S E, Rondon-Aramayo, O A, Sabatié, F, Sick, I, Smith, T, Sorrell, L, Staley, F, Saint-Lorant, S J, Stuart, L M, Szalata, Z M, Terrien, Y, Tobias, A, Todor, L, Toole, T, Trentalange, S, Walz, D, Welsh, R C, Wesselmann, F R, Wright, T R, Young, C C, Zeier, M, Zhu, H, and Zihlmann, B
Subjects: Nuclear Physics
Published: 1999

19. VCS above 8 GeV: the experimental challenge

Author: Bertin, P Y, Roblin, Y, and Hyde-Wright, C E
Subjects: Detectors and Experimental Techniques
Published: 1999

20. The experimental challenge of virtual Compton scattering above 8 GeV

Author: Bertin, P. Y., Roblin, Y., and Hyde-Wright, C. E.
Subjects: High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), deeply virtual Compton scattering, Bethe-Heitler – Compton interference terms, electron-positron (beam charge) asymmetry, electron-beam helicity asymmetry, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Experiment
Abstract: We discuss the experimental issues confronting measurements of the virtualCompton-scattering (VCS) reaction ep→epγ with electron beams of energy 6 – 30 GeV. We specifically address the kinematics of deeply-virtual-Comptonscattering (deep inelastic scattering, with coincident detection of the exclusive real photon nearly parallel to the virtual photon direction) and large transverse momentum VCS (high energy VCS of arbitrary Q2, and the recoil proton emitted with high-momentum transverse to the virtual photon direction). We discuss the experimental equipment necessary for these measurements. For the deeply virtual Compton scattering, we emphasize the importance of the Bethe-Heitler – Compton interference terms that can be measured with the electron-positron (beam charge) asymmetry, and the electron beam helicity asymmetry, Raspravljamo teško´ce s kojima se sučeljavaju mjerenja reakcija virtualnog Comptonovog raspršenja (VCS) ep→epγ pri energijama elektrona od 6 do 30 GeV. Posebno se razmatra kinematika duboko virtualnog Comptonovog raspršenja i VCS s velikim prijenosom impulsa. Raspravljamo mjerne uređaje koji su potrebni za takva mjerenja. Za duboko virtualno Comptonovo raspršenje, naglašavamo važnost Bethe-Heitlerovih interferentnih članova koji se mogu mjeriti asimetrijom elektronpozitron (naboj snopa) i asimetrijom heliciteta elektronskog snopa.
Published: 1999

21. Quasielastic 12C(e,e'p) Reaction at High Momentum Transfer

Author: Morrison, J. H., Baghaei, H., Bertozzi, W., Gilad, S., Glickman, J., Hyde-Wright, C. E., Kalantar-Nayestanaki, N., Lourie, R. W., Penn, S., Ulmer, P. E., Weinstein, L. B., Cottman, B. H., Ghedira, L., Winhold, E. J., Calarco, J. R., Wise, J., Boberg, P., Chang, C. C., Zhang, D., Aniol, K., Epstein, M. B., Margaziotis, D. J., Finn, J. M., Perdrisat, C., and Punjabi, V.
Subjects: Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: We measured the 12C(e,e'p) cross section as a function of missing energy in parallel kinematics for (q,w) = (970 MeV/c, 330 MeV) and (990 MeV/c, 475 MeV). At w=475 MeV, at the maximum of the quasielastic peak, there is a large continuum (E_m > 50 MeV) cross section extending out to the deepest missing energy measured, amounting to almost 50% of the measured cross section. The ratio of data to DWIA calculation is 0.4 for both the p- and s-shells. At w=330 MeV, well below the maximum of the quasielastic peak, the continuum cross section is much smaller and the ratio of data to DWIA calculation is 0.85 for the p-shell and 1.0 for the s-shell. We infer that one or more mechanisms that increase with $\omega$ transform some of the single-nucleon-knockout into multinucleon knockout, decreasing the valence knockout cross section and increasing the continuum cross section., Comment: 14 pages, 7 figures, Revtex (multicol, prc and aps styles), to appear in Phys Rev C
Published: 1998

22. Virtual Compton scattering at the nucleon

Author: D'Hose, N, Bartsch, P, Berthot, J, Bertin, P Y, Breton, V, Böglin, W, Böhm, R, Caprano, T, De Meyer, G, Degrande, N, Derber, S, Distler, M, Ducret, J E, Edelhoff, R, Ewald, I, Fonvieille, H, Friedrich, J M, Geiges, R, Gousset, T, Guichon, P A M, Holvoet, H, Hyde-Wright, C E, Jennewein, P, Kahrau, M, Kerhoas, S, Korn, M, Kramer, H M, Krygier, K W, Kunde, V, Lannoy, B, Lhuillier, D, Liesenfeld, A, Marchand, C, Marchand, D, Martino, J, Merkel, H, Merle, K, Merle, P, Mougey, J, Neuhausen, R, Offermann, E, Pospischil, T, Quéméner, G, Ravel, O, Roblin, Y, Roche, J, Rosner, G, Ryckbosch, D, Sauer, P U, Schardt, S, Schmieden, H, Tamas, G, Tytgat, M H G, Van Hoorebeke, L, Van de Vyver, R, Van de Wiele, J, Vanderhaeghen, M, Vernin, P, Wagner, A, Walcher, T, and Wolf, S
Subjects: Particle Physics - Phenomenology
Published: 1997

23. Measurement of the proton and deuteron spin structure function $g_1$ in the resonance region

Author: Abe, K., Akagi, T., Anthony, P. L., Antonov, R., Arnold, R. G., Averett, T., Band, H. R., Bauer, J. M., Borel, H., Bosted, P. E., Vincent Breton, Button-Shafer, J., Chen, J. P., Chupp, T. E., Clendenin, J., Comptour, C., Coulter, K. P., Court, G., Crabb, D., Daoudi, M., Day, D., Dietrich, F. S., Dunne, J., Dutz, H., Erbacher, R., Fellbaum, J., Feltham, A., Fonvieille, H., Frlez, E., Garvey, D., Gearhart, R. A., Gomez, J., Grenier, P., Griffioen, K. A., Hoibraten, S., Hughes, E. W., Hyde-Wright, C. E., Johnson, J. R., Kawall, D., Klein, A., Kuhn, S. E., Kuriki, M., Lindgren, R., Liu, T. J., Lombard-Nelsen, R. M., Marroncle, J., Maruyama, T., Maruyama, X. K., Mccarthy, J., Meyer, W., Meziani, Z. E., Minehart, R., Mitchell, J., Morgenstern, J., Petratos, G. G., Pitthan, R., Pocanic, D., Prescott, C., Prepost, R., Raines, P., Raue, B. A., Reyna, D., Rijllart, A., Roblin, Y., Rochester, L. S., Rock, S. E., Rondon, O. A., Sick, I., Smith, L. C., Smith, T. B., Spengos, M., Staley, F., Steiner, P., Stuart, L. M., Suekane, F., Szalata, Z. M., Hao Tang, Terrien, Y., Usher, T., Walz, D., Wesselmann, F., White, J. L., Witte, K., Young, C. C., Youngman, B., Yuta, H., Zapalac, G., Zihlmann, B., Zimmerman, D., 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 E143
Subjects: [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Abstract: We have measured the proton and deuteron spin structure functions g[sup p][sub 1] and g[sup d][sub 1] in the region of the nucleon resonances for W2 < 5GeV2 and Q2(similar, equals)0.5 and Q2(similar, equals)1.2GeV2 by inelastically scattering 9.7 GeV polarized electrons off polarized 15NH3 and 15ND3 targets. We observe significant structure in g[sup p][sub 1] in the resonance region. We have used the present results, together with the deep-inelastic data at higher W2, to extract Gamma (Q2)(equivalent)01 g1(x,Q2)dx. This is the first information on the low-Q2 evolution of Gamma toward the Gerasimov-Drell-Hearn limit at Q2 = 0.
Published: 1997

24. Virtual Compton Scattering $\gamma *p \to \gamma ' p'$

Author: Lhuillier, D, Berthot, J, Breton, P Y, Berton, V, Böglin, W, Böhm, R, D'Hose, N, Distler, M, Ducret, J E, Edelhoff, R, Fonvieille, H, Friedrich, J M, Geiges, R, Gousset, T, Guichon, P A M, Holvoet, H, Hyde-Wright, C E, Jennewein, P, Kahrau, M, Kerhoas, S, Korn, M, Kramer, H M, Krygier, K W, Kunde, V, Lannoy, B, Liesenfeld, A, Marchand, C, Marchand, D, Martino, J, Merkel, H, Merle, K, De Meyer, G, Mougey, J, Neuhausen, R, Offermann, E, Pospischil, T, Quéméner, G, Ravel, O, Roblin, Y, Roche, J, Rosner, G, Ryckbosch, D, Sauer, P U, Schmieden, H, Schardt, S, Tamas, G, Vanderhaeghen, M, Van Hoorebeke, L, Van de Vyver, R, Van de Wiele, J, Vernin, P, Wagner, A, Walcher, T, and Wolf, S
Subjects: Particle Physics - Experiment
Published: 1996

25. Monte Carlo simulation of virtual Compton scattering at MAMI

Author: Van Hoorebeke, L, Berthot, J, Bertin, V, Böglin, W, Böhm, R, D'Hose, N, De Meyer, G, Degrande, N, Distler, M, Ducret, J E, Edelhoff, R, Fonvieille, H, Friedrich, J M, Geiges, R, Gousset, T, Guichon, P A M, Holvoet, H, Hyde-Wright, C E, Jennewein, P, Kahrau, M, Kerhoas, S, Korn, M, Kramer, H M, Krygier, K W, Kunde, V, Lannoy, B, Lhuillier, D, Liesenfeld, A, Marchand, C, Marchand, D, Martino, J, Merkel, H, Merle, K, Mougey, J, Neuhausen, R, Offermann, E, Pospischil, T, Quéméner, G, Ravel, O, Roblin, Y, Roche, J, Rosner, G, Ryckbosch, D, Sauer, P U, Schardt, S, Schmieden, H, Tamas, G, Van de Vyver, J, Van de Wiele, J, Vanderhaeghen, T, Vernin, P, Wagner, A, Walcher, T, and Wolf, S
Subjects: Particle Physics - Phenomenology
Published: 1996

26. Nucleon structure study by virtual Compton scattering

Author: Berthot, J, Audit, G, Bertin, P Y, Braghieri, A, Breton, V, Böglin, W, Böhm, R, Cavata, C, D'Hose, N, Distler, M, Ducret, J E, Edelhoff, R, Fonvieille, H, Friedrich, J M, Geiges, R, Gousset, T, Guichon, P A M, Hyde-Wright, C E, Jennewein, P, Kahrau, M, Kerhoas, S, Korn, M, Kramer, H M, Krygier, K W, Kunde, V, Lhuillier, D, Liesenfeld, A, Marchand, C, Marchand, D, Martino, J, Merle, K, Mougey, J, Neuhausen, R, Offermann, E, Pedroni, P, Pospischil, T, Quéméner, G, Ravel, O, Roche, J, Rosner, G, Ryckbosch, D, Sauer, P U, Schardt, S, Schmieden, H, Tamas, G, Van Hoorebeke, L, Van de Vyver, R, Vanderhaeghen, M, Vernin, P, Wagner, A, Walcher, T, and Wolf, S
Subjects: Particle Physics - Phenomenology
Published: 1995

27. Precision measurement of R = $\sigma_{L}$/$\sigma_{T}$ on hydrogen, deuterium, and beryllium targets in deep inelastic electron scattering

Author: Tao, L H, Andivahis, L, Anthony, P L, Arnold, R G, Banerjee, A, Bodek, Arie, Bosted, P E, Button-Shafer, J, Dasu, S, De Barbaro, P, Dietrich, F S, Dunne, J, Frodyma, M B, Gearhart, R A, Gómez, J, Griffioen, K A, Hicks, R A, Hyde-Wright, C E, Keppel, C E, Kuhn, S E, Lung, A, Peterson, G A, Petratos, G G, Riordan, Michael, Rock, S E, Rokni, S H, Spengos, M, Stuart, L M, Szalata, Z M, Van Bibber, K, Walker, R, Wang, K, White, J L, and Yang, U K
Subjects: Particle Physics - Experiment
Published: 1995

28. Nucleon structure study by virtual Compton scattering at high momentum transfer

Author: Berthot, J, Bertin, P Y, Breton, V, Fonvieille, H, Quéméner, G, Ravel, O, Audit, G, Berheim, M, Fournier, G, Gousset, T, Guichon, P A M, Guidal, M, D'Hose, N, Kerhoas, S, Marchand, C, Marroncle, J, Martino, J, Mougey, J, Vernin, P, Van de Wiele, J, Ryckbosch, D, Van de Vyver, R, Van Hoorebeke, L, Hyde-Wright, C E, Weinstein, L B, Ulmer, P E, Meziani, Z E, and Nathan, A M
Subjects: Particle Physics - Phenomenology
Published: 1995

29. Nucleon structure study by virtual Compton scattering

Author: Audit, G, Bernheim, M, Fournier, G, Gousset, T, Guichon, P A M, Guidal, M, D'Hose, N, Kunne, Fabienne, Lakehal-Ayat, L, Kerhoas, S, Marchand, C, Marroncle, J, Martino, J, Mougey, J, Saghai, B, Vernin, P, Berthot, J, Bertin, P Y, Comptour, C, Breton, V, Fonvieille, H, Quéméner, G, Ravel, O, Van de Wiele, J, Ryckbosh, D, Van de Vyver, R, Hyde-Wright, C E, Weinstein, L B, Ulmer, P E, Meziani, Z E, Kawall, D, Elouadrhiri, L, Finn, J M, Gómez, J, Le Rose, J J, Michael, R, Nanda, S, and Saha, A
Subjects: Particle Physics - Phenomenology
Published: 1993

30. The NE11 experiment at SLAC and the neutron form factors

Author: Stuart, L M, Lung, A, Bosted, P E, Andivahis, L, Alster, J, Arnold, R G, Chang, C C, Dietrich, F S, Dodge, W R, Gearhart, R A, Gómez, J, Griffioen, K A, Hicks, R S, Hyde-Wright, C E, Keppel, C E, Kuhn, S E, Lichtenstadt, J, Miskimen, R A, Peterson, G A, Petratos, G G, Rock, S E, Rokni, S H, Sakumoto, W K, Spengos, M, Swartz, K L, Szalata, Z M, and Tao, L H
Subjects: Particle Physics - Experiment
Published: 1993

31. TRANSVERSE IMAGING OF THE PROTON IN EXCLUSIVE DIFFRACTIVE pp SCATTERING.

Author: HYDE-WRIGHT, C. E., FRANKFURT, L., STRIKMAN, M., and WEISS, C.
Subjects: PROTONS, DIFFRACTIVE scattering, QUANTUM chromodynamics, PARTONS, DISTRIBUTION (Probability theory)
Published: 2007

32. POLARIZABILITIES IN REAL AND VIRTUAL COMPTON SCATTERING.

Author: Hyde-Wright, C. E.
Subjects: COMPTON scattering, HADRONS, PHOTONS, NEUTRONS, POLARIZATION (Nuclear physics)
Published: 2001

33. Precise extraction of the induced polarization in the 4He(e,e'p)3H reaction.

Author: Malace SP, Paolone M, Strauch S, Albayrak I, Arrington J, Berman BL, Brash EJ, Briscoe B, Camsonne A, Chen JP, Christy ME, Chudakov E, Cisbani E, Craver B, Cusanno F, Ent R, Garibaldi F, Gilman R, Glamazdin O, Glister J, Higinbotham DW, Hyde-Wright CE, Ilieva Y, de Jager CW, Jiang X, Jones MK, Keppel CE, Khrosinkova E, Kuchina E, Kumbartzki G, Lee B, Lindgren R, Margaziotis DJ, Meekins D, Michaels R, Park K, Pentchev L, Perdrisat CF, Piasetzky E, Punjabi VA, Puckett AJ, Qian X, Qiang Y, Ransome RD, Saha A, Sarty AJ, Schulte E, Solvignon P, Subedi RR, Tang L, Tedeschi D, Tvaskis V, Udias JM, Ulmer PE, Vignote JR, Wesselmann FR, Wojtsekhowski B, and Zhan X
Abstract: We measured with unprecedented precision the induced polarization P(y) in (4)He(e,e'p)(3)H at Q(2)=0.8 and 1.3 (GeV/c)(2). The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are overestimated by a calculation with strong charge-exchange effects. Our data are used to constrain the strength of the spin-independent charge-exchange term in the latter calculation.
Published: 2011
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34. Polarization transfer in the 4He(e,e'p)3H reaction at Q2=0.8 and 1.3 (GeV/c)2.

Author: Paolone M, Malace SP, Strauch S, Albayrak I, Arrington J, Berman BL, Brash EJ, Briscoe B, Camsonne A, Chen JP, Christy ME, Chudakov E, Cisbani E, Craver B, Cusanno F, Ent R, Garibaldi F, Gilman R, Glamazdin O, Glister J, Higinbotham DW, Hyde-Wright CE, Ilieva Y, de Jager CW, Jiang X, Jones MK, Keppel CE, Khrosinkova E, Kuchina E, Kumbartzki G, Lee B, Lindgren R, Margaziotis DJ, Meekins D, Michaels R, Park K, Pentchev L, Perdrisat CF, Piasetzky E, Punjabi VA, Puckett AJ, Qian X, Qiang Y, Ransome RD, Saha A, Sarty AJ, Schulte E, Solvignon P, Subedi RR, Tang L, Tedeschi D, Tvaskis V, Udias JM, Ulmer PE, Vignote JR, Wesselmann FR, Wojtsekhowski B, and Zhan X
Abstract: Proton recoil polarization was measured in the quasielastic 4He(e,e'p)3H reaction at Q{2}=0.8 and 1.3 (GeV/c){2} with unprecedented precision. The polarization-transfer coefficients are found to differ from those of the 1H(e,e'p) reaction, contradicting a relativistic distorted-wave approximation and favoring either the inclusion of medium-modified proton form factors predicted by the quark-meson coupling model or a spin-dependent charge-exchange final-state interaction. For the first time, the polarization-transfer ratio is studied as a function of the virtuality of the proton.
Published: 2010
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35. Precise measurement of the neutron magnetic form factor G(M)n in the few-GeV2 region.

Author: Lachniet J, Afanasev A, Arenhövel H, Brooks WK, Gilfoyle GP, Higinbotham D, Jeschonnek S, Quinn B, Vineyard MF, Adams G, Adhikari KP, Amaryan MJ, Anghinolfi M, Asavapibhop B, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Beard K, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Bonner BE, Bookwalter C, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Bültmann S, Burkert VD, Calarco JR, Careccia SL, Carman DS, Casey L, Cheng L, Cole PL, Coleman A, Collins P, Cords D, Corvisiero P, Crabb D, Crede V, Cummings JP, Dale D, Daniel A, Dashyan N, De Masi R, De Vita R, De Sanctis E, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dhamija S, Dharmawardane KV, Dhuga KS, Dickson R, Djalali C, Dodge GE, Doughty D, Dragovitsch P, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, El Fassi L, Elouadrhiri L, Empl A, Eugenio P, Fatemi R, Fedotov G, Fersch R, Feuerbach RJ, Forest TA, Fradi A, Gabrielyan MY, Garçon M, Gavalian G, Gevorgyan N, Giovanetti KL, Girod FX, Goetz JT, Gohn W, Golovatch E, Gothe RW, Graham L, Griffioen KA, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hanretty C, Hardie J, Hassall N, Heddle D, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hu J, Huertas M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Johnstone JR, Joo K, Juengst HG, Kageya T, Kalantarians N, Keller D, Kellie JD, Khandaker M, Khetarpal P, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klusman M, Konczykowski P, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Kuznetsov V, Laget JM, Langheinrich J, Lawrence D, Lima AC, Livingston K, Lowry M, Lu HY, Lukashin K, Maccormick M, Malace S, Manak JJ, Markov N, Mattione P, McAleer S, McCracken ME, McKinnon B, McNabb JW, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Mineeva T, Minehart R, Mirazita M, Miskimen R, Mokeev V, Moreno B, Moriya K, Morrow SA, Moteabbed M, Mueller J, Munevar E, Mutchler GS, Nadel-Turonski P, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, O'Rielly GV, Osipenko M, Ostrovidov AI, Park K, Park S, Pasyuk E, Paterson C, Pereira SA, Philips SA, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Popa I, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Rosner G, Rossi P, Rowntree D, Rubin PD, Sabatié F, Saini MS, Salamanca J, Salgado C, Sandorfi A, Santoro JP, Sapunenko V, Schott D, Schumacher RA, Serov VS, Sharabian YG, Sharov D, Shaw J, Shvedunov NV, Skabelin AV, Smith ES, Smith LC, Sober DI, Sokhan D, Starostin A, Stavinsky A, Stepanyan S, Stepanyan SS, Stokes BE, Stoler P, Stopani KA, Strakovsky II, Strauch S, Suleiman R, Taiuti M, Taylor S, Tedeschi DJ, Thompson R, Tkabladze A, Tkachenko S, Ungaro M, Vlassov AV, Watts DP, Wei X, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Yun J, Yurov M, Zana L, Zhang J, Zhao B, and Zhao ZW
Abstract: The neutron elastic magnetic form factor was extracted from quasielastic electron scattering on deuterium over the range Q;{2}=1.0-4.8 GeV2 with the CLAS detector at Jefferson Lab. High precision was achieved with a ratio technique and a simultaneous in situ calibration of the neutron detection efficiency. Neutrons were detected with electromagnetic calorimeters and time-of-flight scintillators at two beam energies. The dipole parametrization gives a good description of the data.
Published: 2009
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36. Search for the photoexcitation of exotic mesons in the pi+pi+pi- system.

Author: Nozar M, Salgado C, Weygand DP, Guo L, Adams G, Li J, Eugenio P, Amaryan MJ, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Battaglieri M, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Blaszczyk L, Bonner BE, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Casey L, Cazes A, Chen S, Cheng L, Cole PL, Collins P, Coltharp P, Cords D, Corvisiero P, Crabb D, Crannell H, Crede V, Cummings JP, Dale D, Dashyan N, De Masi R, De Vita R, De Sanctis E, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Dhuga KS, Dickson R, Djalali C, Dodge GE, Doughty D, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, El Fassi L, Elouadrhiri L, Fatemi R, Fedotov G, Feuerbach RJ, Forest TA, Fradi A, Funsten H, Garçon M, Gavalian G, Gevorgyan N, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gothe RW, Griffioen KA, Guidal M, Guillo M, Guler N, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hanretty C, Hardie J, Hassall N, Heddle D, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Johnstone JR, Joo K, Juengst HG, Kalantarians N, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Kossov M, Krahn Z, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Kuznetsov V, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Livingston K, Lu HY, Maccormick M, Markov N, Mattione P, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mehrabyan S, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Mirazita M, Miskimen R, Mokeev V, Moreno B, Moriya K, Morrow SA, Moteabbed M, Mueller J, Munevar E, Mutchler GS, Nadel-Turonski P, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, O'Rielly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Anefalos Pereira S, Philips SA, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Popa I, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Rubin PD, Sabatié F, Salamanca J, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Sharov D, Shvedunov NV, Skabelin AV, Smith ES, Smith LC, Sober DI, Sokhan D, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strakovsky II, Strauch S, Taiuti M, Tedeschi DJ, Thoma U, Tkabladze A, Tkachenko S, Todor L, Ungaro M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, Zhao B, and Zhao ZW
Abstract: A search for exotic mesons in the pi;{+}pi;{+}pi;{-} system photoproduced by the charge exchange reaction gammap-->pi;{+}pi;{+}pi;{-}(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4 GeV range, produced through bremsstrahlung from a 5.744 GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83 000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic J;{PC}=1;{-+} resonant state in the 1 to 2 GeV mass range. Our partial wave analysis shows production of the a_{2}(1320) and the pi_{2}(1670) mesons, but no evidence for the a_{1}(1260), nor the pi_{1}(1600) exotic state at the expected levels. An upper limit of 13.5 nb is determined for the exotic pi_{1}(1600) cross section, less than 2% of the a_{2}(1320) production.
Published: 2009
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37. Bayesian analysis of pentaquark signals from CLAS data.

Author: Ireland DG, McKinnon B, Protopopescu D, Ambrozewicz P, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Batourine V, Battaglieri M, Bedlinskiy I, Bellis M, Benmouna N, Berman BL, Biselli AS, Blaszczyk L, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Casey L, Chen S, Cheng L, Cole PL, Collins P, Coltharp P, Crabb D, Crede V, Dashyan N, De Masi R, De Vita R, De Sanctis E, Degtyarenko PV, Deur A, Dickson R, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dzyubak OP, Egiyan KS, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Feldman G, Fradi A, Funsten H, Garçon M, Gavalian G, Gevorgyan N, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gohn W, Gonenc A, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Gyurjyan V, Hafidi K, Hakobyan H, Hanretty C, Hassall N, Hersman FW, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ishkhanov BS, Isupov EL, Jenkins D, Jo HS, Johnstone JR, Joo K, Juengst HG, Kalantarians N, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Kossov M, Krahn Z, Kramer LH, Kubarovsky V, Kuhn J, Kuleshov SV, Kuznetsov V, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Livingston K, Lu HY, Maccormick M, Markov N, Mattione P, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Mirazita M, Miskimen R, Mokeev V, Moreno B, Moriya K, Morrow SA, Moteabbed M, Munevar E, Mutchler GS, Nadel-Turonski P, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Pereira SA, Pierce J, Pivnyuk N, Pogorelko O, Pozdniakov S, Price JW, Procureur S, Prok Y, Raue BA, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Sabatié F, Salamanca J, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Sharov D, Shvedunov NV, Smith LC, Sober DI, Sokhan D, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strauch S, Taiuti M, Tedeschi DJ, Tkabladze A, Tkachenko S, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, Zhao B, and Zhao ZW
Abstract: We examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a Theta(+) pentaquark, while the other found no such evidence. The unique feature of these two experiments was that they were performed with the same experimental setup. Using a Bayesian analysis, we find that the results of the two experiments are in fact compatible with each other, but that the first measurement did not contain sufficient information to determine unambiguously the existence of a Theta(+). Further, we suggest a means by which the existence of a new candidate particle can be tested in a rigorous manner.
Published: 2008
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38. Search for medium modifications of the rho meson.

Author: Nasseripour R, Wood MH, Djalali C, Weygand DP, Tur C, Mosel U, Muehlich P, Adams G, Amaryan MJ, Ambrozewicz P, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Battaglieri M, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Blaszczyk L, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Casey L, Chen S, Cole PL, Collins P, Coltharp P, Crabb D, Crannell H, Crede V, Cummings JP, Dashyan N, De Masi R, De Vita R, De Sanctis E, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Dickson R, Dodge GE, Doughty D, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Feldman G, Feuerbach RJ, Funsten H, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gordon CI, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hakobyan RS, Hanretty C, Hardie J, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Johnstone JR, Joo K, Juengst HG, Kalantarians N, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Krahn Z, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Li J, Livingston K, Lu HY, Maccormick M, Markov N, Mattione P, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mehrabyan S, Melone JJ, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Moriya K, Morrow SA, Moteabbed M, Mueller J, Munevar E, Mutchler GS, Nadel-Turonski P, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Anefalos Pereira S, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Sabatié F, Salamanca J, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Sharov D, Shvedunov NV, Smith ES, Smith LC, Sober DI, Sokhan D, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strakovsky II, Strauch S, Taiuti M, Tedeschi DJ, Tkabladze A, Tkachenko S, Todor L, Ungaro M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Williams M, Wolin E, Yegneswaran A, Zana L, Zhang B, Zhang J, Zhao B, and Zhao ZW
Abstract: The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, rho, omega, and varphi, are observed via their decay to e;{+}e;{-}, in order to reduce the effects of final-state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the rho meson. The rho mass spectrum is extracted from the data on various nuclei, 2H, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the rho meson.
Published: 2007
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39. Experimental study of exclusive 2H(e,e'p)n reaction mechanisms at high Q2.

Author: Egiyan KS, Asryan G, Gevorgyan N, Griffioen KA, Laget JM, Kuhn SE, Adams G, Amaryan MJ, Ambrozewicz P, Anghinolfi M, Audit G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Blaszczyk L, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Cazes A, Chen S, Cole PL, Collins P, Coltharp P, Cords D, Corvisiero P, Crabb D, Crede V, Cummings JP, Dashyan N, De Masi R, De Vita R, De Sanctis E, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Dickson R, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dytman S, Dzyubak OP, Egiyan H, El Fassi L, Elouadrhiri L, Eugenio P, Fatemi R, Fedotov G, Feldman G, Feuerbach RJ, Fersch R, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gonenc A, Gordon CI, Gothe RW, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hakobyan RS, Hanretty C, Hardie J, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kalantarians N, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Krahn Z, Kramer LH, Kubarovsky V, Kuhn J, Kuleshov SV, Lachniet J, Langheinrich J, Lawrence D, Li J, Livingston K, Lu HY, Maccormick M, Marchand C, Markov N, Mattione P, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mehrabyan S, Melone JJ, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Moriya K, Morrow SA, Moteabbed M, Mueller J, Munevar E, Mutchler GS, Nadel-Turonski P, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, O'Rielly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Anefalos Pereira S, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Sabatié F, Salamanca J, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shvedunov NV, Skabelin AV, Smith ES, Smith LC, Sober DI, Sokhan D, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strauch S, Taiuti M, Tedeschi DJ, Thoma U, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, Zhao B, and Zhao ZW
Abstract: The reaction 2H(e,e'p)n has been studied with full kinematic coverage for photon virtuality 1.75NN transition is the primary contribution at higher momenta.
Published: 2007
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40. Scaling tests of the cross section for deeply virtual Compton scattering.

Author: Camacho CM, Camsonne A, Mazouz M, Ferdi C, Gavalian G, Kuchina E, Amarian M, Aniol KA, Beaumel M, Benaoum H, Bertin P, Brossard M, Chen JP, Chudakov E, Craver B, Cusanno F, de Jager CW, Deur A, Feuerbach R, Fieschi JM, Frullani S, Garçon M, Garibaldi F, Gayou O, Gilman R, Gomez J, Gueye P, Guichon PA, Guillon B, Hansen O, Hayes D, Higinbotham D, Holmstrom T, Hyde-Wright CE, Ibrahim H, Igarashi R, Jiang X, Jo HS, Kaufman LJ, Kelleher A, Kolarkar A, Kumbartzki G, Laveissière G, Lerose JJ, Lindgren R, Liyanage N, Lu HJ, Margaziotis DJ, Meziani ZE, McCormick K, Michaels R, Michel B, Moffit B, Monaghan P, Nanda S, Nelyubin V, Potokar M, Qiang Y, Ransome RD, Réal JS, Reitz B, Roblin Y, Roche J, Sabatié F, Saha A, Sirca S, Slifer K, Solvignon P, Subedi R, Sulkosky V, Ulmer PE, Voutier E, Wang K, Weinstein LB, Wojtsekhowski B, Zheng X, and Zhu L
Abstract: We present the first measurements of the e[over -->]p-->epgamma cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region. The Q(2) dependence (from 1.5 to 2.3 GeV(2)) of the helicity-dependent cross section indicates the twist-2 dominance of DVCS, proving that generalized parton distributions (GPDs) are accessible to experiment at moderate Q(2). The helicity-independent cross section is also measured at Q(2)=2.3 GeV(2). We present the first model-independent measurement of linear combinations of GPDs and GPD integrals up to the twist-3 approximation.
Published: 2006
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41. Measurement of the N-->Delta(+)(1232) transition at high-momentum transfer by pi(0) electroproduction.

Author: Ungaro M, Stoler P, Aznauryan I, Burkert VD, Joo K, Smith LC, Adams G, Amarian M, Ambrozewicz P, Anghinolfi M, Asryan G, Audit G, Avakian H, Bagdasaryan H, Ball JP, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Bedliski I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Bonner BE, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Cazes A, Chen S, Cole PL, Coltharp P, Cords D, Corvisiero P, Crabb D, Cummings JP, Sanctis ED, Devita R, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Eugenio P, Fatemi R, Fedotov G, Feldman G, Feuerbach RJ, Funsten H, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz J, Gordon CI, Gothe RW, Griffioen KA, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hakobyan RS, Hardie J, Heddle D, Hersman FW, Hleiqawi I, Holtrop M, Hicks K, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Juengst HG, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Li J, Livingston K, Marchand C, Markov N, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mehrabyan S, Melone JJ, Mestayer MD, Meyer CA, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Morand L, Morrow SA, Mueller J, Mutchler GS, Napolitano J, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula M, Niyazov RA, Nozar M, O'rielly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Philips SA, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Skabelin AV, Smith ES, Sober DI, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Strakovsky II, Strauch S, Taiuti M, Tedeschi DJ, Thoma U, Tkabladze A, Todor L, Tkachenko S, Tur C, Vineyard MF, Vlassov AV, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang B, Zhang J, and Zhao B
Abstract: We report a new measurement of the exclusive electroproduction reaction gamma(*)p-->pi(0)p to explore the evolution from soft nonperturbative physics to hard processes via the Q(2) dependence of the magnetic (M(1+)), electric (E(1+)), and scalar (S(1+)) multipoles in the N-->Delta transition. 9000 differential cross section data points cover W from threshold to 1.4 GeV/c(2), 4pi center-of-mass solid angle, and Q(2) from 3 to 6 GeV(2)/c(2), the highest yet achieved. It is found that the magnetic form factor G(M)(*) decreases with Q(2) more steeply than the proton magnetic form factor, the ratio E(1+)/M(1+) is small and negative, indicating strong helicity nonconservation, and the ratio S(1+)/M(1+) is negative, while its magnitude increases with Q(2).
Published: 2006
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42. Search for Theta++ pentaquarks in the exclusive reaction gammap-->K+K-p.

Author: Kubarovsky V, Battaglieri M, De Vita R, Goett J, Guo L, Mutchler GS, Stoler P, Weygand DP, Ambrozewicz P, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Batourine V, Bedlinskiy I, Bellis M, Benmouna N, Berman BL, Biselli AS, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Chen S, Clinton E, Cole PL, Collins P, Coltharp P, Crabb D, Crannell H, Crede V, Cummings JP, De Masi R, Dale D, De Sanctis E, Degtyarenko PV, Deur A, Dharmawardane KV, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Eugenio P, Fedotov G, Funsten H, Gabrielyan MY, Gan L, Garçon M, Gasparian A, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Glamazdin O, Goetz JT, Golovach E, Gonenc A, Gordon CI, Gothe RW, Griffioen KA, Guidal M, Guler N, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan RS, Hardie J, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Kramer LH, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Li J, Livingston K, Lu H, MacCormick M, Markov N, McKinnon B, Mecking BA, Melone JJ, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mochalov V, Mokeev V, Morand L, Morrow SA, Moteabbed M, Nadel-Turonski P, Nakagawa I, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Price JW, Prok Y, Protopopescu D, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shvedunov NV, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Strakovsky II, Strauch S, Taiuti M, Tedeschi DJ, Teymurazyan A, Thoma U, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Weinstein LB, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, and Zhao B
Abstract: The reaction gammap --> pK+K- was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a Theta++ pentaquark, a narrow, doubly charged baryon state having strangeness S=+1 and isospin I=1, in the pK+ invariant mass spectrum. No statistically significant evidence of a Theta++ was found. Upper limits on the total and differential cross section for the reaction gammap --> K-Theta++ were obtained in the mass range from 1.5 to 2.0 GeV/c2, with an upper limit for a narrow resonance with a mass M(Theta++) = 1.54 GeV/c2 of about 0.15 nb, 95% C.L.. This result places a stringent upper limit on the Theta++ width Gamma(Theta++) <0.1 MeV/c2.
Published: 2006
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43. Measurement of deeply virtual compton scattering with a polarized-proton target.

Author: Chen S, Avakian H, Burkert VD, Eugenio P, Adams G, Amarian M, Ambrozewicz P, Anghinolfi M, Asryan G, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Beard K, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Bonner BE, Bouchigny S, Boiarinov S, Bosted P, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Cazes A, Cole PL, Collins P, Coltharp P, Cords D, Corvisiero P, Crabb D, Crannell H, Crede V, Cummings JP, DeMasi R, DeVita R, De Sanctis E, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Dhuga KS, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, El Fassi L, Elouadrhiri L, Fatemi R, Fedotov G, Feldman G, Feuerbach RJ, Forest TA, Funsten H, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Golovatch E, Gonenc A, Gothe RW, Griffioen KA, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hakobyan RS, Hardie J, Heddle D, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Huertas M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Keith C, Kellie JD, Khandaker M, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klusman M, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Li J, Lima AC, Livingston K, Lu H, Lukashin K, MacCormick M, Markov N, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Morand L, Morrow SA, Moteabbed M, Mueller J, Mutchler GS, Nadel-Turonski P, Napolitano J, Nasseripour R, Natasha N, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, O'Rielly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Philips SA, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Popa I, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Rowntree D, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shaw J, Shvedunov NV, Skabelin AV, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strakovsky II, Strauch S, Suleiman R, Taiuti M, Tedeschi DJ, Thoma U, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vanderhaeghen M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Yun J, Zana L, Zhang J, Zhao B, and Zhao Z
Abstract: The longitudinal target-spin asymmetry AUL for the exclusive electroproduction of high-energy photons was measured for the first time in ep-->e;'pgamma. The data have been accumulated at JLab with the CLAS spectrometer using 5.7 GeV electrons and a longitudinally polarized NH3 target. A significant azimuthal angular dependence was observed, resulting from the interference of the deeply virtual Compton scattering and Bethe-Heitler processes. The amplitude of the sinvarphi moment is 0.252+/-0.042stat+/-0.020sys. Theoretical calculations are in good agreement with the magnitude and the kinematic dependence of the target-spin asymmetry, which is sensitive to the generalized parton distributions H and H.
Published: 2006
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44. Search for the Theta+ Pentaquark in the gammad--> DeltanK+ reaction measured with the CLAS spectrometer.

Author: Niccolai S, Mirazita M, Rossi P, Baltzell NA, Carman DS, Hicks K, McKinnon B, Mibe T, Stepanyan S, Tedeschi DJ, Adams G, Ambrozewicz P, Anefalos Pereira S, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Batourine V, Battaglieri M, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Biselli AS, Boiarinov S, Bouchigny S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carnahan B, Chen S, Cole PL, Collins P, Coltharp P, Crabb D, Crannell H, Crede V, Cummings JP, Dashyan N, Degtyarenko PV, De Masi R, Deppman A, De Sanctis E, Deur A, Devita R, Dharmawardane KV, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dzyubak OP, Egiyan H, Egiyan KS, El Fassi L, Elouadrhiri L, Eugenio P, Fedotov G, Feldman G, Funsten H, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gonenc A, Gordon CI, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hafidi K, Hakobyan H, Hakobyan RS, Hardie J, Hersman FW, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Langheinrich J, Lawrence D, Lee T, Li J, Livingston K, Lu H, MacCormick M, Markov N, Mecking BA, Mellor J, Melone JJ, Mestayer MD, Meyer CA, Mikhailov K, Minehart R, Miskimen R, Mokeev V, Morand L, Morrow SA, Moteabbed M, Mutchler GS, Nadel-Turonski P, Napolitano J, Nasseripour R, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, de Oliveira Echeimberg J, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shvedunov NV, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stokes BE, Stoler P, Strakovsky II, Strauch S, Taiuti M, Thoma U, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Watts DP, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, Zhao B, and Zhao Z
Abstract: For the first time, the reaction gammad-->DeltanK+ has been analyzed in order to search for the exotic pentaquark baryon Theta+(1540). The data were taken at Jefferson Laboratory, using the Hall-B tagged-photon beam of energy between 0.8 and 3.6 GeV and the CEBAF Large Acceptance Spectrometer (CLAS). No statistically significant structures were observed in the nK+ invariant-mass distribution. The upper limit on the gammad-->DeltaTheta+ integrated cross section has been calculated and found to be between 5 and 25 nb, depending on the production model assumed. The upper limit on the differential cross section is also reported.
Published: 2006
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45. Search for the Theta+ pentaquark in the reaction gammad --> pK-K+n.

Author: McKinnon B, Hicks K, Baltzell NA, Carman DS, Mestayer MD, Mibe T, Mirazita M, Niccolai S, Rossi P, Stepanyan S, Tedeschi DJ, Ambrozewicz P, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Batourine V, Battaglieri M, Bedlinskiy I, Bellis M, Benmouna N, Berman BL, Biselli AS, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Chen S, Cole PL, Collins P, Coltharp P, Crabb D, Crede V, Dale D, De Masi R, DeVita R, De Sanctis E, Degtyarenko PV, Deur A, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Eugenio P, Fedotov G, Feldman G, Funsten H, Gabrielyan M, Gan L, Garçon M, Gasparian A, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gonenc A, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Gyurjyan V, Hakobyan RS, Hersman FW, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Langheinrich J, Lawrence D, Livingston K, Lu H, MacCormick M, Mecking BA, Meyer CA, Mikhailov K, Miskimen R, Mokeev V, Morrow SA, Moteabbed M, Mutchler GS, Nakagawa I, Nadel-Turonski P, Nasseripour R, Niculescu G, Niculescu I, Niczyporuk BB, Niroula MR, Niyazov RA, Nozar M, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Pierce J, Pivnyuk N, Pogorelko O, Pozdniakov S, Price JW, Prok Y, Protopopescu D, Raue BA, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stokes BE, Stoler P, Strakovsky II, Strauch S, Taiuti M, Teymurazyan A, Thoma U, Tkabladze A, Tkachenko S, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, Zhao B, and Zhao Z
Abstract: A search for the Theta+ in the reaction gammad --> pK-K+n was completed using the CLAS detector at Jefferson Lab. A study of the same reaction, published earlier, reported the observation of a narrow Theta+ resonance. The present experiment, with more than 30 times the integrated luminosity of our earlier measurement, does not show any evidence for a narrow pentaquark resonance. The angle-integrated upper limit on Theta+ production in the mass range of 1.52-1.56 GeV/c2 for the gammad --> pK-Theta+ reaction is 0.3 nb (95% C.L.). This upper limit depends on assumptions made for the mass and angular distribution of Theta+ production. Using Lambda(1520) production as an empirical measure of rescattering in the deuteron, the cross section upper limit for the elementary gamman --> K-Theta+ reaction is estimated to be a factor of 10 higher, i.e., approximately 3 nb (95% C.L.).
Published: 2006
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46. Measurement of two- and three-nucleon short-range correlation probabilities in nuclei.

Author: Egiyan KS, Dashyan NB, Sargsian MM, Strikman MI, Weinstein LB, Adams G, Ambrozewicz P, Anghinolfi M, Asavapibhop B, Asryan G, Avakian H, Baghdasaryan H, Baillie N, Ball JP, Baltzell NA, Batourine V, Battaglieri M, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Biselli AS, Bonner BE, Bouchigny S, Boiarinov S, Bradford R, Branford D, Brooks WK, Bültmann S, Burkert VD, Bultuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Chen S, Cole PL, Coltharp P, Corvisiero P, Crabb D, Crannell H, Cummings JP, De Sanctis E, DeVita R, Degtyarenko PV, Denizli H, Dennis L, Dharmawardane KV, Djalali C, Dodge GE, Donnelly J, Doughty D, Dragovitsch P, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Elouadrhiri L, Empl A, Eugenio P, Fatemi R, Fedotov G, Feuerbach RJ, Forest TA, Funsten H, Gavalian G, Gevorgyan NG, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hardie J, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hu J, Huertas M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klimenko A, Klusman M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Kuleshov S, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Livingston K, Maximon LC, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Morrow SA, Mueller J, Mutchler GS, Nadel-Turonski P, Napolitano J, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niyazov RA, O'Relly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Peterson C, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Rowntree D, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shaw J, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan S, Stokes BE, Stoler P, Strauch S, Suleiman R, Taiuti M, Taylor S, Tedeschi DJ, Thompson R, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Yun J, Zana L, and Zhang J
Abstract: The ratios of inclusive electron scattering cross sections of 4He, 12C, and 56Fe to 3He have been measured at 1 < xB <. At Q2 > 1.4 GeV2, the ratios exhibit two separate plateaus, at 1.5 < xB < 2 and at xB > 2.25. This pattern is predicted by models that include 2- and 3-nucleon short-range correlations (SRC). Relative to A = 3, the per-nucleon probabilities of 3-nucleon SRC are 2.3, 3.1, and 4.4 times larger for A = 4, 12, and 56. This is the first measurement of 3-nucleon SRC probabilities in nuclei.
Published: 2006
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47. Eta' photoproduction on the proton for photon energies from 1.527 to 2.227 GeV.

Author: Dugger M, Ball JP, Collins P, Pasyuk E, Ritchie BG, Adams G, Ambrozewicz P, Anciant E, Anghinolfi M, Asavapibhop B, Asryan G, Audit G, Avakian H, Bagdasaryan H, Baillie N, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Beard K, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Bianchi N, Biselli AS, Bonner BE, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Chen S, Cole PL, Coleman A, Coltharp P, Cords D, Corvisiero P, Crabb D, Crannell H, Credé V, Cummings JP, De Sanctis E, DeVita R, Degtyarenko PV, Denizli H, Dennis L, Deur A, Dharmawardane KV, Dhuga KS, Djalali C, Dodge GE, Donnelly J, Doughty D, Dragovitsch P, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Empl A, Eugenio P, Fatemi R, Fedotov G, Feldman G, Feuerbach RJ, Forest TA, Funsten H, Garçon M, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gothe RW, Griffioen KA, Guidal M, Guillo M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hakobyan RS, Hardie J, Heddle D, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hu J, Huertas M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klimenko AV, Klusman M, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Lima AC, Livingston K, Lukashin K, Manak JJ, Marchand C, Maximon LC, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Morrow SA, Muccifora V, Mueller J, Mutchler GS, Nadel-Turonski P, Napolitano J, Nasseripour R, Niccolai S, Niculescu G, Niczyporuk BB, Niyazov RA, Nozar M, O'Rielly GV, Osipenko M, Ostrovidov AI, Park K, Paterson C, Philips SA, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ronchetti F, Rosner G, Rossi P, Rowntree D, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Shafi A, Sharabian YG, Shaw J, Simionatto S, Skabelin AV, Smith ES, Smith LC, Sober DI, Spraker M, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strakovsky II, Strauch S, Taiuti M, Taylor S, Tedeschi DJ, Thoma U, Thompson R, Tkabladze A, Tkachenko S, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Wang K, Weinstein LB, Weller H, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Yun J, Zana L, and Zhang J
Abstract: Differential cross sections for the reaction gamma p --> eta' p have been measured with the CLAS spectrometer and a tagged photon beam with energies from 1.527 to 2.227 GeV. The results reported here possess much greater accuracy than previous measurements. Analyses of these data suggest for the first time the coupling of the eta'N channel to both the S11(1535) and P11(1710) resonances, known to couple strongly to the etaN channel in photoproduction on the proton, and the importance of J = 3/2 resonances in the process.
Published: 2006
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48. Search for Theta+ (1540) Pentaquark in High-Statistics Measurement of gammap-->K0K+n at CLAS.

Author: Battaglieri M, De Vita R, Kubarovsky V, Guo L, Mutchler GS, Stoler P, Weygand DP, Ambrozewicz P, Anghinolfi M, Asryan G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Batourine V, Bedlinskiy I, Bellis M, Benmouna N, Berman BL, Biselli AS, Bouchigny S, Boiarinov S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Chen S, Clinton E, Cole PL, Coltharp P, Crabb D, Crannell H, Cummings JP, Dale D, De Sanctis E, Degtyarenko PV, Deur A, Dharmawardane KV, Djalali C, Dodge GE, Donnelly J, Doughty D, Dugger M, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Eugenio P, Fedotov G, Funsten H, Gabrielyan MY, Gan L, Garçon M, Gasparian A, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Glamazdin O, Goett J, Goetz JT, Golovach E, Gonenc A, Gordon CI, Gothe RW, Griffioen KA, Guidal M, Guler N, Gyurjyan V, Hadjidakis C, Hakobyan RS, Hardie J, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim W, Klein A, Klein FJ, Klimenko AV, Kossov M, Kramer LH, Kuhn J, Kuhn SE, Kuleshov SV, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Li J, Livingston K, McKinnon B, Mecking BA, Melone JJ, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mochalov V, Mokeev V, Morand L, Morrow SA, Nadel-Turonski P, Nakagawa I, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niyazov RA, Nozar M, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Pozdniakov S, Price JW, Prok Y, Protopopescu D, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Ronchetti F, Rosner G, Rossi P, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Strakovsky II, Strauch S, Taiuti M, Tedeschi DJ, Teymurazyan A, Thoma U, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Weinstein LB, Williams M, Wolin E, Wood MH, Yegneswaran A, Zana L, Zhang J, and Zhao B
Abstract: The exclusive reaction gammap-->K0K+n was studied in the photon energy range between 1.6 and 3.8 GeV searching for evidence of the exotic baryon Theta+ (1540)-->nK+. The decay to nK+requires the assignment of strangeness S=+1 to any observed resonance. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility corresponding to an integrated luminosity of 70 pb-1. No evidence for the Theta+ pentaquark was found. Upper limits were set on the production cross section as function of center-of-mass angle and nK+ mass. The 95% C.L. upper limit on the total cross section for a narrow resonance at 1540 MeV was found to be 0.8 nb.
Published: 2006
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49. Beam-helicity asymmetries in double-charged-pion photoproduction on the proton.

Author: Strauch S, Berman BL, Adams G, Ambrozewicz P, Anghinolfi M, Asavapibhop B, Asryan G, Audit G, Avakian H, Bagdasaryan H, Baillie N, Ball JP, Baltzell NA, Barrow S, Batourine V, Battaglieri M, Beard K, Bedlinskiy I, Bektasoglu M, Bellis M, Benmouna N, Bennhold C, Biselli AS, Boiarinov S, Bouchigny S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Bültmann S, Burkert VD, Butuceanu C, Calarco JR, Careccia SL, Carman DS, Carnahan B, Chen S, Cole PL, Coleman A, Coltharp P, Cords D, Corvisiero P, Crabb D, Crannell H, Cummings JP, Degtyarenko PV, Denizli H, Dennis L, De Sanctis E, Deur A, Devita R, Dharmawardane KV, Dhuga KS, Djalali C, Dodge GE, Donnelly J, Doughty D, Dragovitsch P, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Empl A, Eugenio P, Fatemi R, Fedotov G, Feldman G, Feuerbach RJ, Fix A, Forest TA, Funsten H, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Goetz JT, Gothe RW, Griffioen KA, Guidal M, Guler N, Guo L, Gyurjyan V, Hadjidakis C, Hakobyan RS, Hardie J, Heddle D, Hersman FW, Hicks K, Hleiqawi I, Holtrop M, Hu J, Huertas M, Hyde-Wright CE, Ilieva Y, Ireland DG, Ishkhanov BS, Ito MM, Jenkins D, Jo HS, Joo K, Juengst HG, Kellie JD, Khandaker M, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klimenko AV, Klusman M, Kossov M, Kramer LH, Kubarovsky V, Kuhn J, Kuhn SE, Lachniet J, Laget JM, Langheinrich J, Lawrence D, Lee T, Lima AC, Livingston K, Lukashin K, Manak JJ, Marchand C, McAleer S, McKinnon B, McNabb JW, Mecking BA, Mestayer MD, Meyer CA, Mibe T, Mikhailov K, Minehart R, Mirazita M, Miskimen R, Mokeev V, Morrow SA, Muccifora V, Mueller J, Mutchler GS, Nadel-Turonski P, Napolitano J, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niyazov RA, Nozar M, O'rielly GV, Osipenko M, Ostrovidov AI, Park K, Pasyuk E, Paterson C, Philips SA, Pierce J, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Roberts W, Ronchetti F, Rosner G, Rossi P, Rowntree D, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Shafi A, Sharabian YG, Shaw J, Skabelin AV, Smith ES, Smith LC, Sober DI, Stavinsky A, Stepanyan SS, Stepanyan S, Stokes BE, Stoler P, Strakovsky II, Suleiman R, Taiuti M, Taylor S, Tedeschi DJ, Thoma U, Thompson R, Tkabladze A, Tkachenko S, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Wang K, Weinstein LB, Weygand DP, Williams M, Wolin E, Wood MH, Yegneswaran A, Yun J, Zana L, and Zhang J
Abstract: Beam-helicity asymmetries for the two-pion-photoproduction reaction gammap-->ppi(+)pi(-) have been studied for the first time in the resonance region for center-of-mass energies between 1.35 and 2.30 GeV. The experiment was performed at Jefferson Lab with the CEBAF Large Acceptance Spectrometer using circularly polarized tagged photons incident on an unpolarized hydrogen target. Beam-helicity-dependent angular distributions of the final-state particles were measured. The large cross-section asymmetries exhibit strong sensitivity to the kinematics and dynamics of the reaction. The data are compared with the results of various phenomenological model calculations, and show that these models currently do not provide an adequate description for the behavior of this new observable.
Published: 2005
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50. Onset of asymptotic scaling in deuteron photodisintegration.

Author: Rossi P, Mirazita M, Ronchetti F, De Sanctis E, Adams G, Ambrozewicz P, Anciant E, Anghinolfi M, Asavapibhop B, Audit G, Avakian H, Bagdasaryan H, Ball JP, Barrow S, Battaglieri M, Beard K, Bektasoglu M, Bellis M, Benmouna N, Berman BL, Bertozzi W, Bianchi N, Biselli AS, Boiarinov S, Bonner BE, Bouchigny S, Bradford R, Branford D, Briscoe WJ, Brooks WK, Burkert VD, Butuceanu C, Calarco JR, Carman DS, Carnahan B, Chen S, Cole PL, Cords D, Corvisiero P, Crabb D, Crannell H, Cummings JP, De Vita R, Degtyarenko PV, Denizli H, Dennis L, Deppman A, Dharmawardane KV, Dhuga KS, Djalali C, Dodge GE, Doughty D, Dragovitsch P, Dugger M, Dytman S, Dzyubak OP, Egiyan H, Egiyan KS, Elouadrhiri L, Empl A, Eugenio P, Fatemi R, Feuerbach RJ, Ficenec J, Forest TA, Funsten H, Gai M, Gavalian G, Gilad S, Gilfoyle GP, Giovanetti KL, Gordon CI, Griffioen K, Guidal M, Guillo M, Guo L, Gyurjyan V, Hadjidakis C, Hakobyan RS, Hardie J, Heddle D, Hersman FW, Hicks K, Hicks RS, Holtrop M, Hu J, Hyde-Wright CE, Ilieva Y, Ito MM, Jenkins D, Jo HS, Joo K, Kellie JD, Khandaker M, Kim KY, Kim K, Kim W, Klein A, Klein FJ, Klimenko AV, Klusman M, Kossov M, Kramer LH, Kuhn J, Kuhn SE, Lachniet J, Laget JM, Lawrence D, Li J, Lima AC, Livingston K, Lukashin K, Manak JJ, Marchand C, McAleer S, McCarthy J, McNabb JW, Mecking BA, Mehrabyan S, Melone JJ, Mestayer MD, Meyer CA, Mikhailov K, Miskimen R, Mokeev V, Morand L, Morrow SA, Muccifora V, Mueller J, Mutchler GS, Napolitano J, Nasseripour R, Niccolai S, Niculescu G, Niculescu I, Niczyporuk BB, Niyazov RA, Nozar M, O'Brien JT, O'Rielly GV, Osipenko M, Ostrovidov A, Park K, Pasyuk E, Peterson G, Philips SA, Pivnyuk N, Pocanic D, Pogorelko O, Polli E, Pozdniakov S, Preedom BM, Price JW, Prok Y, Protopopescu D, Qin LM, Raue BA, Riccardi G, Ricco G, Ripani M, Ritchie BG, Rosner G, Rowntree D, Rubin PD, Sabatié F, Salgado C, Santoro JP, Sapunenko V, Schumacher RA, Serov VS, Sharabian YG, Shaw J, Simionatto S, Skabelin AV, Smith ES, Smith LC, Sober DI, Spraker M, Stavinsky A, Stepanyan S, Stokes B, Stoler P, Strakovsky II, Strauch S, Taiuti M, Taylor S, Tedeschi DJ, Thoma U, Thompson R, Tkabladze A, Todor L, Tur C, Ungaro M, Vineyard MF, Vlassov AV, Wang K, Weinstein LB, Weller H, Weygand DP, Whisnant CS, Wolin E, Wood MH, Yegneswaran A, Yun J, Zhang B, and Zhou Z
Abstract: We investigate the transition from the nucleon-meson to the quark-gluon description of the strong interaction using the photon energy dependence of the d(gamma,p)n differential cross section for photon energies above 0.5 GeV and center-of-mass proton angles between 30 degrees and 150 degrees. A possible signature for this transition is the onset of cross-section s(-11) scaling with the total energy squared, s, at some proton transverse momentum P(T). The results show that the scaling has been reached for proton transverse momentum above about 1.1 GeV/c. This may indicate that the quark-gluon regime is reached above this momentum.
Published: 2005
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Articles

journal articles & other e-resources