Search

Your search keyword '"Niroula, M.R."' showing total 17 results
Start Over Author "Niroula, M.R."
17 results on '"Niroula, M.R."'

1. Moments of the spin structure functions g1p and g1d for 0.05<Q2<3.0 GeV2

Author

Prok, Y., Bosted, P., Burkert, V.D., Deur, A., Dharmawardane, K.V., Dodge, G.E., Griffioen, K.A., Kuhn, S.E., Minehart, R., Adams, G., 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., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B.L., Biselli, A.S., Blaszczyk, L., Boiarinov, S., Bonner, B.E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W.J., Brooks, W.K., Bültmann, S., 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., 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., Dhuga, K.S., Dickson, R., Djalali, C., 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., Feldman, G., Fersh, R.G., Feuerbach, R.J., Forest, T.A., Fradi, A., Funsten, H., Garçon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Golovatch, E., Gothe, R.W., 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, F.W., Hicks, K., Hleiqawi, I., Holtrop, M., Huertas, 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., Keith, C.D., Kellie, J.D., Khandaker, M., Kim, K.Y., Kim, K., Kim, W., Klein, A., Klein, F.J., Klusman, M., Kossov, M., Krahn, Z., Kramer, L.H., Kubarovsky, V., Kuhn, J., Kuleshov, S.V., Kuznetsov, V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Li, Ji, Lima, A.C.S., Livingston, K., Lu, H.Y., Lukashin, K., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., McKinnon, B., McNabb, J.W.C., Mecking, B.A., Mestayer, M.D., Meyer, C.A., Mibe, T., Mikhailov, K., 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., 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., Protopopescu, D., Qin, L.M., Raue, B.A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Rowntree, D., Rubin, P.D., Sabatié, F., Salamanca, J., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Seely, M.L., Serov, V.S., Sharabian, Y.G., Sharov, D., Shaw, J., Shvedunov, N.V., Skabelin, A.V., Smith, E.S., 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., Suleiman, R., 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., Yun, J., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.W.

Subjects
Nuclear and High Energy Physics
Published
2009
Full Text
View/download PDF

2. Measurement of the x- and Q2-dependence of the asymmetry A1 on the nucleon

Author

Dharmawardane, K.V., Kuhn, S.E., Bosted, P., Prok, Y., Adams, G., Ambrozewicz, P., Anghinolfi, M., 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., Biselli, A.S., Bonner, B.E., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Brooks, W.K., Bültmann, S., Burkert, V.D., Butuceanu, C., Calarco, J.R., Careccia, S.L., Carman, D.S., Carnahan, B., Cazes, A., Chen, S., Cole, P.L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crannell, H., Crede, V., Cummings, J.P., De Masi, R., DeVita, R., De Sanctis, E., Degtyarenko, P.V., Denizli, H., Dennis, L., Deur, A., Djalali, C., Dodge, G.E., Donnelly, J., Doughty, D., Dragovitsch, P., Dugger, M., Dytman, S., Dzyubak, O.P., Egiyan, H., Egiyan, K.S., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feuerbach, R.J., Forest, T.A., Funsten, H., Garçon, M., Gavalian, G., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Golovatch, E., Gonenc, A., Gothe, R.W., Griffioen, K.A., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, R.S., Hardie, J., Heddle, D., Hersman, F.W., Hicks, K., Hleiqawi, I., Holtrop, M., Huertas, M., Hyde-Wright, C.E., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Ito, M.M., Jenkins, D., Jo, H.S., Joo, K., Juengst, H.G., Keith, C., Kellie, J.D., Khandaker, M., Kim, K.Y., Kim, K., Kim, W., Klein, A., Klein, F.J., Klusman, M., Kossov, M., Kramer, L.H., Kubarovsky, V., Kuhn, J., Kuleshov, S.V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Li, Ji, Lima, A.C.S., Livingston, K., Lu, H., 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., Morand, L., Morrow, S.A., Moteabbed, M., Mueller, J., Mutchler, G.S., Nadel-Turonski, P., Napolitano, J., 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., Pasyuk, E., Paterson, C., Philips, S.A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Pozdniakov, S., Preedom, B.M., Price, J.W., Protopopescu, D., Qin, L.M., Raue, B.A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Ronchetti, F., Rosner, G., Rossi, P., Rowntree, D., Rubin, P.D., Sabatié, F., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Serov, V.S., Sharabian, Y.G., Shaw, J., Shvedunov, N.V., Skabelin, A.V., Smith, E.S., Smith, L.C., Sober, D.I., Stavinsky, A., Stepanyan, S.S., Stepanyan, S., Stokes, B.E., Stoler, P., Strakovsky, I.I., Strauch, S., Suleiman, R., Taiuti, M., Taylor, S., Tedeschi, D.J., Thoma, U., Thompson, R., Tkabladze, A., Tkachenko, S., 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., Yun, J., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.

Subjects
Nuclear and High Energy Physics
Published
2006
Full Text
View/download PDF

3. Differential cross sections and recoil polarizations for the reaction gamma p -> K+ Sigma0

Author

Dey, B., Meyer, C.A., Bellis, M., E. Mccracken, M., Williams, M., Adhikari, K.P., Aghasyan, M., Anghinolfi, M., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Berman, B., Biselli, A.S., Branford, D., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Carman, D.S., Crede, V., D'Angelo, A., Daniel, A., De Vita, R., De Sanctis, E., Deur, A., Dhamija, S., Dickson, R., Djalali, C., Doughty, D., Dugger, M., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fegan, S., Fradi, A., Gabrielyan, M.Y., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Gohn, W., Gothe, R.W., Graham, L., Griffioen, K.A., Guler, N., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D.G., Jawalkar, S.S., Jo, H.S., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F.J., Konczykowski, P., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Macgregor, I.J.D., Martinez, David, McAndrew, J., Mckinnon, B., Mikhailov, K., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Nepali, C.S., Ni, A., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M.R., Osipenko, M., Ostrovidov, A.I., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Raue, B.A., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Salamanca, J., Salgado, C., Schott, D., Schumacher, R.A., Seder, E., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Smith, G.D., Sober, D.I., Sokhan, D., Stepanyan, S.S., Strakovsky, I.I., Strauch, S., Tang, W., Taylor, C.E., Tedeschi, D.J., Tkachenko, S., Ungaro, M., Watts, D.P., Vernarsky, B., Vineyard, M.F., Voutier, E., Weinstein, L.B., Wood, M.H., Yegneswaran, A., Zhang, J., Zhao, B., Zhao, Z.W., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), CLAS, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

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

High-statistics measurements of differential cross sections and recoil polarizations for the reaction $\gamma p \rightarrow K^+ \Sigma^0$ have been obtained using the CLAS detector at Jefferson Lab. We cover center-of-mass energies ($\sqrt{s}$) from 1.69 to 2.84 GeV, with an extensive coverage in the $K^+$ production angle. Independent measurements were made using the $K^{+}p\pi^{-}$($\gamma$) and $K^{+}p$($\pi^-, \gamma$) final-state topologies, and were found to exhibit good agreement. Our differential cross sections show good agreement with earlier CLAS, SAPHIR and LEPS results, while offering better statistical precision and a 300-MeV increase in $\sqrt{s}$ coverage. Above $\sqrt{s} \approx 2.5$ GeV, $t$- and $u$-channel Regge scaling behavior can be seen at forward- and backward-angles, respectively. Our recoil polarization ($P_\Sigma$) measurements represent a substantial increase in kinematic coverage and enhanced precision over previous world data. At forward angles we find that $P_\Sigma$ is of the same magnitude but opposite sign as $P_\Lambda$, in agreement with the static SU(6) quark model prediction of $P_\Sigma \approx -P_\Lambda$. This expectation is violated in some mid- and backward-angle kinematic regimes, where $P_\Sigma$ and $P_\Lambda$ are of similar magnitudes but also have the same signs. In conjunction with several other meson photoproduction results recently published by CLAS, the present data will help constrain the partial wave analyses being performed to search for missing baryon resonances., Comment: 23 pages, 17 figures

Published
2010

4. Absorption of the $\omega$ and $\phi$ Mesons in Nuclei

Author

Wood, M.H., Nasseripour, R., Paolone, M., Djalali, C., Weygand, D.P., Adhikari, K.P., Anghinolfi, M., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bellis, M., Berman, B.L., Biselli, A.S., Branford, D., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Cole, P.L., Collins, P., Crede, V., d'Angelo, A., Daniel, A., de Vita, R., de Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Doughty, D., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fegan, S., Gabrielyan, M.Y., Garçon, M., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Gohn, W., Gothe, R.W., Graham, L., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Jawalkar, S.S., Jo, H.S., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F.J., Konczykowski, P., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Martinez, David, Mayer, M., Mcandrew, J., Mccracken, M.E., Mckinnon, B., Meyer, C.A., Mineeva, T., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Munevar, E., Nadel-Turonski, P., Ni, A., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M.R., Osipenko, M., Ostrovidov, A.I., Paremuzyan, R., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Prok, Y., Protopopescu, D., Raue, B.A., Ricco, G., Ripani, M., Rosner, G., Rossi, P., Sabatié, F., Saini, M.S., Salamanca, J., Salgado, C., Schott, D., Schumacher, R.A., Seder, E., Seraydaryan, H., Sharabian, Y.G., Smith, G.D., Sober, D.I., Sokhan, D., Stepanyan, S., Stepanyan, S.S., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Tang, W., Taylor, C.E., Tedeschi, D.J., Tkachenko, S., Ungaro, M., Vernarsky, B., Vineyard, M.F., Voutier, E., Watts, D.P., Weinstein, L.B., Zhang, J., Zhao, B., Zhao, Z.W., 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), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), CLAS, 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
PHOTON, RHO-MESON, MATTER, PHOTOPRODUCTION, PROPAGATION, PHOTON, DECAY, MASS, Nuclear Theory, PHOTOPRODUCTION, High Energy Physics::Experiment, RHO-MESON, PROPAGATION, MASS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, MATTER, DECAY
Abstract

Due to their long lifetimes, the $\omega$ and $\phi$ mesons are the ideal candidates for the study of possible modifications of the in-medium meson-nucleon interaction through their absorption inside the nucleus. During the E01-112 experiment at the Thomas Jefferson National Accelerator Facility, the mesons were photoproduced from $^{2}$H, C, Ti, Fe, and Pb targets. This paper reports the first measurement of the ratio of nuclear transparencies for the $e^{+}e^{-}$ channel. The ratios indicate larger in-medium widths compared with what have been reported in other reaction channels., Comment: 6 pages, 4 figures

Published
2010

5. Partial wave analysis of the reaction γp→pω and the search for nucleon resonances

Author

Williams, M., Applegate, D., Bellis, M., Meyer, C.A., Adhikari, K.P., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Berman, B.L., Biselli, A.S., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Cole, P.L., Collins, P., Crede, V., D'Angelo, A., Daniel, A., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Djalali, C., Dodge, G.E., Doughty, D., Dugger, M., Dupre, R., El Alaoui, A., Elouadrhiri, L., Eugenio, P., Fedotov, G., Fegan, S., Fradi, A., Gabrielyan, M.Y., Garçon, M., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Gohn, W., Golovatch, E., Gothe, R.W., Griffioen, K.A., Guidal, M., Guler, N., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Jawalkar, S.S., Jo, H.S., Johnstone, J.R., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, W., Klein, A., Klein, F.J., Krahn, Z., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Lu, H.Y., Mayer, M., McAndrew, J., Mccracken, M.E., Mckinnon, B., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Munevar, E., Nadel-Turonski, P., Nepali, C.S., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M.R., Niyazov, R.A., Osipenko, M., Ostrovidov, A.I., Paris, M., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Perrin, Y., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Sabatié, F., Saini, M.S., Salamanca, J., Salgado, C., Schott, D., Schumacher, R.A., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Sober, D.I., Sokhan, D., Stepanyan, S.S., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Tedeschi, D.J., Tkachenko, S., Ungaro, M., Vineyard, M.F., Voutier, E., Watts, D.P., Weinstein, L.B., Weygand, D.P., Wood, M.H., Zhang, J., Zhao, B., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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 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)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2009

6. Differential cross sections and spin density matrix elements for the reaction γp -> pω

Author

Williams, M., Applegate, D., Bellis, M., Meyer, C.A., Adhikari, K.P., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Bedlinskiy, I., Berman, B.L., Biselli, A.S., Bookwalter, C., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Cole, P.L., Collins, P., Crede, V., D'Angelo, A., Daniel, A., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Djalali, C., Dodge, G.E., Doughty, D., Dugger, M., Dupre, R., El Alaoui, A., Elouadrhiri, L., Eugenio, P., Fedotov, G., Fegan, S., Fradi, A., Gabrielyan, M.Y., Garçon, M., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Gohn, W., Golovatch, E., Gothe, R.W., Griffioen, K.A., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Hicks, K., Holtrop, M., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Jawalkar, S.S., Jo, H.S., Johnstone, J.R., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, W., Klein, A., Klein, F.J., Krahn, Z., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Lu, H.Y., Mayer, M., McAndrew, J., Mccracken, M.E., Mckinnon, B., Mikhailov, K., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Moutarde, H., Munevar, E., Nadel-Turonski, P., Nepali, C.S., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M.R., Niyazov, R.A., Osipenko, M., Ostrovidov, A.I., Paris, M., Park, K., Park, S., Pasyuk, E., Anefalos Pereira, S., Perrin, Y., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Raue, B.A., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Sabatié, F., Saini, M.S., Salamanca, J., Salgado, C., Schott, D., Schumacher, R.A., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Sober, D.I., Sokhan, D., Stepanyan, S.S., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Tedeschi, D.J., Tkachenko, S., Ungaro, M., Vineyard, M.F., Voutier, E., Watts, D.P., Weinstein, L.B., Weygand, D.P., Wood, M.H., Zhang, J., Zhao, B., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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 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)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
2009

7. Near-threshold photoproduction of ϕ mesons from deuterium

Author

Qian, X., Chen, W., Gao, H., Hicks, K., Kramer, K., Laget, J.M., Mibe, T., Qiang, Y., Stepanyan, S., Tedeschi, D.J., Xu, W., Adhikari, K.P., Amaryan, M., Anghinolfi, M., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bellis, M., Biselli, A.S., Bookwalter, C., Branford, D., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Cole, P.L., Collins, P., Crede, V., D'Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Djalali, C., Doughty, D., Dupre, R., Egiyan, H., El Alaoui, A., Eugenio, P., Fegan, S., Gabrielyan, M.Y., 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., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Holtrop, M., Ilieva, Y., Ireland, D.G., Jawalkar, S.S., Jo, H.S., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F.J., Konczykowski, P., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Martinez, D., Mayer, M., McAndrew, J., McCracken, M.E., McKinnon, B., Meyer, C.A., Mikhailov, K., Mineeva, T., Mirazita, M., Mokeev, V., Moreno, B., Moriya, K., Morrison, B., Moutarde, H., Munevar, E., Nadel-Turonski, P., Ni, A., Niccolai, S., Niculescu, I., Niroula, M.R., Osipenko, M., Ostrovidov, A.I., Paremuzyan, R., Park, K., Park, S., Pereira, S. Anefalos, Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Sabatié, F., Saini, M.S., Salgado, C., Schott, D., Schumacher, R.A., Seder, E., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Smith, G.D., Sober, D.I., Sokhan, D., Stepanyan, S.S., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Taylor, C.E., Tkachenko, S., Ungaro, M., Vernarsky, B., Vineyard, M.F., Voutier, E., Weinstein, L.B., Weygand, D.P., Wood, M.H., Zachariou, N., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.W.

Published
2011
Full Text
View/download PDF

8. Polarized structure function sigma(')(LT) for (1)H((e)over-right-arrow,e(')K(+))Lambda in the nucleon resonance region

Author

Nasseripour, R., Raue, B.A., Carman, D. S., Ambrozewicz, P., Amaryan, M.J., Anciant, E., Anghinolfi, M., Asavapibhop, B., Asryan, G., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J.P., Baltzell, N. A., Barrow, S., Battaglieri, M., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., Biselli, A.S., Blaszczyk, L., Bonner, B.E., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W.K., Burkert, V.D., Butuceanu, C., Calarco, J.R., Careccia, S.L., Casey, L., Cetina, C., Chen, Si, Cheng, L., Cole, P.L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crede, V., Dale, D., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P.V., Dennis, L., Deur, A., Dhuga, K.S., Dickson, R., Djalali, C., Dodge, G.E., Doughty, D., Dragovitsch, P., Dugger, M., Dytman, S., Dzyubak, O.P., Egiyan, H., Egiyan, K.S., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R.J., Forest, T.A., Fradi, A., Funsten, H., Garccon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girard, Pascal, Girod, F.X., Goetz, J. T., Gothe, R.W., Griffioen, K.A., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hanretty, C., Hardie, J., Heddle, D., Hersman, F.W., Hicks, K., Hleiqawi, I., Holtrop, M., Hu, J., Hyde-Wright, C.E., Llieva, 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., Kellie, J.D., Khandaker, M., Kim, K.Y., Kim, K., Kim, W., Klein, A., Klein, F.J., Kossov, M., Krahn, Z., Kramer, L.H., 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., Lukashin, K., Mac Cormick, M., Manak, J.J., Markov, N., Mattione, P., Mc Aleer, S., Mc Kinnon, B., Mc Nabb, Jwc, Mecking, B.A., Mestayer, M.D., Meyer, C.A., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Moreno, B., Moriya, K., Morrow, S.A., Moteabbed, M., Mueller, J., Munevar, E., Mutchler, G.S., Nadel-Turonski, P., 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., Pereira, S.A., Peterson, G., Philips, S.A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Pozdniakov, S., Preedom, B.M., Price, J.W., Procureur, S., Prok, Y., Protopopescu, D., Qin, L.M., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, Philippe, Rubin, P.D., Sabatie, F., Salamanca, J., Salgado, C., Santoro, J.P., Sapunenko, V., Sayre, D., Schumacher, R.A., Serov, V.S., Shafi, A., Sharabian, Y.G., Sharov, D., Shvedunov, N.V., Simionatto, S., Skabelin, A.V., Smith, E.S., 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., Taylor, S., Tedeschi, D.J., Thompson, R., Tkabladze, A., Tkachenko, S., Ungaro, M., Vineyard, M.F., Vlassov, A.V., Wang, K., Watts, D.P., Weinstein, L.B., Weygand, D.P., Williams, M., Wolin, E., Wood, M.H., Yegneswaran, A., Yun, J., Zana, L., Zhang, J., Zhao, B., Zhao, Z. W., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cambridge Arctic Shelf Programme (CASP), University of Cambridge [UK] (CAM), Smart Engineering Asset Management Laboratory, City University of Hong Kong [Hong Kong] (CUHK), Department of Electrical Engineering [Korea Advanced Institute of Science and Technology] (KAIST), Korea Advanced Institute of Science and Technology (KAIST), Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Laboratoire d'Intégration des Systèmes et des Technologies (LIST), and 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)

Subjects
High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

International audience; The first measurements of the polarized structure function σLT′ for the reaction p(e⃗ ,e′K+)Λ in the nucleon resonance region are reported. Measurements are included from threshold up to W=2.05 GeV for central values of Q2 of 0.65 and 1.00 GeV2, and nearly the entire kaon center-of-mass angular range. σLT′ is the imaginary part of the longitudinal-transverse response and is expected to be sensitive to interferences between competing intermediate s-channel resonances, as well as resonant and non-resonant processes. The results for σLT′ are comparable in magnitude to previously reported results from CLAS for σLT, the real part of the same response. An intriguing sign change in σLT′ is observed in the high Q2 data at W≈1.9 GeV. Comparisons to several existing model predictions are shown.

Published
2008

9. Moments of the Spin Structure Functions g_1^p and g_1^d for 0.05 < Q^2 < 3.0 GeV^2

Author

Prok, Y., Bosted, P., Burkert, V. D., Deur, A., Dharmawardane, K. V., Dodge, G. E., Griffioen, K. A., Kuhn, S. E., Minehart, R., Adams, G., 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., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B.L., Biselli, A.S., Blaszczyk, L., Boiarinov, S., Bonner, B.E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W.J., Brooks, W.K., B¨ultmann, S., Butuceanu, C., Calarco, J.R., Careccia, S.L., Carman, D.S., Casey, L., Cazes, A., Chen, Si, Cheng, L., Cole, P.L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., 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., Dhuga, K.S., Dickson, R., Djalali, C., 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., Feldman, G., Fersh, R.G., Feuerbach, R.J., Forest, T.A., Fradi, A., Funsten, H., Garçon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Golovatch, E., Gothe, R.W., 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, F.W., Hicks, K., Hleiqawi, I., Holtrop, M., Huertas, 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., Keith, C.D., Kellie, J.D., Khandaker, M., Kim, K.Y., Kim, K., Kim, W., Klein, A., Klein, F.J., Klusman, M., Kossov, M., Krahn, Z., Kramer, L.H., Kubarovsky, V., Kuhn, J., Kuleshov, S.V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Li, Ji, Lima, A.C.S., Livingston, K., Lu, H.Y., Lukashin, K., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., Mckinnon, B., McNabb, J.W.C., Mecking, B.A., Mestayer, M.D., Meyer, C.A., Mibe, T., Mikhailov, K., 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., Pasyuk, E., Paterson, C., Anefalos Pereira, S., Philips, S.A., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Popa, I., Pozdniakov, S., Preedom, B.M., Price, J.W., Procureur, S., Protopopescu, D., Qin, L.M., Raue, B.A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Rowntree, D., Rubin, P.D., Sabatié, F., Salamanca, J., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Seely, M.L., Serov, V.S., Sharabian, Y.G., Sharov, D., Shaw, J., Shvedunov, N.V., Skabelin, A.V., Smith, E.S., 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., Suleiman, R., 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., Yun, J., Zana, L., Zhang, J., Zhao, B., Zhao, Z.W., Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Thomas Jefferson National Accelerator Facility (Jefferson Lab), CLAS, and 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)

Subjects
Spin structure functions, 13.60.Hb, 13.88.+e, 14.20.Dh, nucleon structure, Nuclear Theory, High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Chiral Perturbation Theory
Abstract

The spin structure functions g_1 for the proton and the deuteron have been measured over a wide kinematic range in x and Q2 using 1.6 and 5.7 GeV longitudinally polarized electrons incident upon polarized NH_3 and ND_3 targets at Jefferson Lab. Scattered electrons were detected in the CEBAF Large Acceptance Spectrometer, for 0.05 < Q^2 < 5 GeV^2 and W < 3 GeV. The first moments of g_1 for the proton and deuteron are presented -- both have a negative slope at low Q^2, as predicted by the extended Gerasimov-Drell-Hearn sum rule. The first result for the generalized forward spin polarizability of the proton gamma_0^p is also reported. This quantity shows strong Q^2 dependence at low Q^2, while Q^6\gamma_0^p seems to flatten out at the highest Q^2 accessed by our experiment. Although the first moments of g_1 are consistent with Chiral Perturbation Theory (ChPT) calculations up to approximately Q^2 = 0.06 GeV^2, a significant discrepancy is observed between the \gamma_0^p data and ChPT for gamma_0^p, even at the lowest Q2., Comment: Final version as published in PLB. Added a parametrization of world data at high Q^2 to Fig. 3

Published
2008

10. Electroproduction of $\phi(1020)$ Mesons at High $Q^2$ with CLAS

Author

Santoro, J. P., Smith, E. S., Garçon, 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., B¨ultmann, S., Burkert, V.D., Butuceanu, C., Calarco, J.R., Careccia, S.L., Carman, D.S., Casey, L., Cazes, A., Chen, Si, 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., F.W. Hersman, §, 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., Anefalos Pereira, S., 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., Sabatié, 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., Zhao, Z.W., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), CLAS, and 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)

Subjects
High Energy Physics::Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 13.60.Le, 12.40.Nn, 12.40.Vv, 25.30.Rw
Abstract

To be submitted to Phys Rev C, 15 pages, 18 figures; International audience; Electroproduction of exclusive $\phi$ vector mesons has been studied with the CLAS detector in the kinematical range $1.6\leq Q^2\leq 3.8$ GeV$^{2}$, $0.0\leq t^{\prime}\leq 3.6$ GeV$^{2}$, and $2.0\leq W\leq 3.0$ GeV. The scaling exponent for the total cross section as $1/(Q^2+M_{\phi}^2)^n$ was determined to be $n=2.49\pm 0.33$. The slope of the four-momentum transfer $t'$ distribution is $b_{\phi}=0.98 \pm 0.17$ GeV$^{-2}$. The data are consistent with the assumption of s-channel helicity conservation (SCHC). Under this assumption, we determine the ratio of longitudinal to transverse cross sections to be $R=0.86 \pm 0.24$. A 2-gluon exchange model is able to reproduce the main features of the data.

Published
2008

11. Cross sections and beam asymmetries for $\vev{e}p \to en\pi^+$ in the nucleon resonance region for $1.7 \le Q^2 \le 4.5 (GeV)^2$

Author

Park, K., Burkert, V.D., Kim, W., Aznauryan, I.G., Minehart, R., Smith, L.C., Joo, K., Elouadrhiri, L., Adams, G., Amaryan, M.J., Ambrozewicz, P., Anghinol_, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J.P., Baltzell, N.A., Barrow, S., Batourine, V., 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., Bultmann, S., Butuceanu, C., Calarco, J.R., Careccia, S.L., Carman, D.S., Casey, L., Cazes, A., Chen, Si, Cheng, L., Cole, P.L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., 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., Djalali, C., Dodge, G.E., Donnelly, J., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O.P., Egiyan, H., Egiyan, K.S., El Fassi, L., Eugenio, P., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R.J., Forest, T.A., Fradi, A., Funsten, H., Gabrielyan, M.Y., Garcon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Gohn, W., Golovatch, E., Gonenc, A., Gordon, C.I.O., Gothe, R.W., Graham, L., Grioen, K.A., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hadi, K., Hafnaoui, K., Hakobyan, H., Hakobyan, R.S., 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., Juengst, H.G., Kalantarians, N., Keller, D., Kellie, J.D., Khandaker, M., Kim, K.Y., Klein, A., Klein, F.J., Klimenko, A.V., Klusman, M., Kossov, M., Krahn, Z., Kramer, L.H., Kubarovsky, V., Kuhn, J., Kuhn, S.E., Kuleshov, S.V., Kuznetsov, V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Lee, T., Li, Ji, Lima, A.C.S., Livingston, K., Lu, H.Y., Lukashin, K., MacCormick, M., 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., 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, 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., Prok, Y., Protopopescu, D., Qin, L.M., Raue, B.A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Ronchetti, F., Rosner, G., Rossi, P., Rowntree, D., Rubin, P.D., 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., Shaw, J., Shvedunov, N.V., Skabelin, A.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., Suleiman, R., Taiuti, M., Takeuchi, T., 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., Yun, J., Yurov, M., Zana, L., Zhang, B., Zhang, J., Zhao, B., Zhao, Z.W., 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CLAS, and 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)

Subjects
High Energy Physics - Phenomenology, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, High Energy Physics - Experiment
Abstract

The exclusive electroproduction process $\vec{e}p \to e^\prime n \pi^+$ was measured in the range of the photon virtuality $Q^2 = 1.7 - 4.5 \rm{GeV^2}$, and the invariant mass range for the $n\pi^+$ system of $W = 1.15 - 1.7 \rm{GeV}$ using the CEBAF Large Acceptance Spectrometer. For the first time, these kinematics are probed in exclusive $\pi^+$ production from protons with nearly full coverage in the azimuthal and polar angles of the $n\pi^+$ center-of-mass system. The $n\pi^+$ channel has particular sensitivity to the isospin 1/2 excited nucleon states, and together with the $p\pi^0$ final state will serve to determine the transition form factors of a large number of resonances. The largest discrepancy between these results and present modes was seen in the $\sigma_{LT'}$ structure function. In this experiment, 31,295 cross section and 4,184 asymmetry data points were measured. Because of the large volume of data, only a reduced set of structure functions and Legendre polynomial moments can be presented that are obtained in model-independent fits to the differential cross sections.

Published
2007

12. Cross Sections for the $\gamma p \to K^{*0}\Sigma^+$ Reaction at $E_\gamma = 1.7 - 3.0$ GeV

Author

Hleiqawi, I., Hicks, K., Carman, D., Mibe, T., Niculescu, G., Tkabladze, A., Amarian, M., Ambrozewicz, P., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J.P., Baltzell, N.A., Batourine, V., Battaglieri, M., Beard, K., Bedlinskiy, I., Bellis, M., Benmouna, N., Berman, B.L., 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., Carnahan, B., Chen, Si, Cole, P.L., Collins, P., Coltharp, P., Crabb, D., Crannell, H., Crede, V., Cummings, J.P., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P.V., Dennis, L., Deur, A., Djalali, C., Dickson, R., Dodge, G.E., Donnelly, J., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O.P., Egiyan, H., Elouadrhiri, L., Eugenio, P., Fedotov, G., Feldman, G., Fersch, R., Feuerbach, R., 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., Hakobyan, R.S., Hardie, J., Heddle, D., Hersman, F.W., Holtrop, M., Hyde-Wright, C.E., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Ito, M.M., Jenkins, D., Jo, H.S., Joo, K., H.G. Juengst, 9, Kalantarians, N., Kellie, J.D., Khandaker, M., Kim, K., 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., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Li, J., Livingston, K., Lu, H., Lukashin, K., MacCormick, M., McAleer, S., Mckinnon, B., Mcnabb, J., Mecking, B.A., Mestayer, M.D., Meyer, C.A., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Moriya, K., Morrow, S.A., Moteabbed, M., Mutchler, G.S., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., 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., B. Preedom, 19, 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., Sabatié, F., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Serov, V.S., Sharabian, Y.G., Smith, E.S., Smith, L.C., Sober, D.I., Stavinsky, A., Stepanyan, S.S., Stepanyan, S., Stokes, B.E., Stoler, P., Strakovsky, I.I., Strauch, S., Taiuti, M., Taylor, S., Tedeschi, D.J., Thoma, U., Thompson, R., Todor, L., Tkachenko, S., Tur, C., Ungaro, M., Vineyard, M.F., Vlassov, A.V., Wang, K., Weinstein, L.B., Weygand, D.P., Whisnant, S., Williams, M., Wolin, E., Wood, M.H., Yegneswaran, A., Zana, L., Zhang, J., Zhao, B., Zhao, 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CLAS, and 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)

Subjects
High Energy Physics::Experiment, 13.60.-r,13.60.Le,13.60.Rj,14.40.Ev, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

Differential cross sections for the reaction $\gamma p \to K^{*0} \Sigma^+$ are presented at nine bins in photon energy in the range from 1.7 to 3.0 GeV. The \kstar was detected by its decay products, $K^+\pi^-$, in the CLAS detector at Jefferson Lab. These data are the first \kstar photoproduction cross sections ever published over a broad range of angles. Comparison with a theoretical model based on the vector and tensor $K^*$-quark couplings shows good agreement with the data in general, after adjusting the model's two parameters in a fit to our data. Disagreement between the data at forward angles and the global angle-energy fit to the model suggests that the role of scalar $\kappa$ meson exchange in $t$-channel diagrams should be investigated., Comment: 7 pages, 5 figures, submitted to Phys. Rev. C (Rapid Commun.)

Published
2007

13. Experimental study of exclusive $^2$H$(e,e^\prime p)n$ reaction mechanisms at high $Q^2$

Author

Egiyan, K.S., Asryan, G., Gevorgyan, N., Griffioen, K.A., Laget, J.M., Kuhn, S.E., Adams, G., Amaryan, M.J., Ambrozewicz, P., Anghinolfi, M., Audit, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J.P., Baltzell, N.A., Barrow, S., Batourine, V., Battaglieri, M., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B.L., Biselli, A.S., Blaszczyk, L., 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., Cazes, A., Chen, Si, Cole, P.L., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crede, V., Cummings, J.P., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P.V., Denizli, H., Dennis, L., Deur, A., Dharmawardane, K.V., Dickson, R., Djalali, C., Dodge, G.E., Donnelly, J., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O.P., Egiyan, H., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R.J., Fersch, R., Garçon, M., Gavalian, G., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Gonenc, A., Gordon, C.I.O., Gothe, R.W., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, H., Hakobyan, R.S., Hanretty, C., Hardie, J., 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., Joo, K., Juengst, H.G., Kalantarians, N., 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., Kuleshov, S.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., 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., Pasyuk, E., Paterson, C., Anefalos Pereira, S., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., 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., Sabatié, F., Salamanca, J., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Serov, V.S., Sharabian, Y.G., Shvedunov, N.V., Skabelin, A.V., Smith, E.S., Smith, L.C., Sober, D.I., Sokhan, D., 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., 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., Zana, L., Zhang, J., Zhao, B., Zhao, Z.W., Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), CLAS, and 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)

Subjects
25.10.+s, 25.30.Fj, Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

The reaction $^2$H$(e,e^\prime p)n$ has been studied with full kinematic coverage for photon virtuality $1.75, Comment: 6 pages, 4 figures

Published
2007

14. Search for $\Theta^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^+K^-p$

Author

Kubarovsky, V., Battaglieri, M., de Vita, R., Goett, J., Guo, L., Mutchler, G.S., Stoler, P., Weygand, D.P., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J.P., Baltzell, N.A., Batourine, V., Bedlinskiy, I., Bellis, M., Benmouna, N., Berman, B.L., 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, Si, Clinton, E., Cole, P.L., Collins, P., Coltharp, P., Crabb, D., Crannell, H., Crede, V., Cummings, J.P., de Masi, R., Dale, D., de Sanctis, E., Degtyarenko, P.V., Deur, A., Dharmawardane, K.V., 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., Funsten, H., Gabrielyan, M.Y., Gan, L., Garçon, M., Gasparian, A., Gavalian, G., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Glamazdin, O., Goetz, J.T., Golovach, E., Gonenc, A., Gordon, C.I.O., Gothe, R.W., Griffioen, K.A., Guidal, M., Guler, N., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, R.S., Hardie, J., 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., Joo, K., Juengst, H.G., Kellie, J.D., Khandaker, M., Kim, W., Klein, A., Klein, F.J., Klimenko, A.V., Kossov, M., Kramer, L.H., Kuhn, J., Kuhn, S.E., Kuleshov, S.V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Lee, T., Li, Ji, Livingston, K., Lu, H., Maccormick, M., Markov, N., Mckinnon, B., Mecking, B.A., Melone, J.J., Mestayer, M.D., Meyer, C.A., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mochalov, V., Mokeev, V., Morand, L., Morrow, S.A., Moteabbed, M., Nadel-Turonski, P., Nakagawa, I., 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., Pocanic, D., Pogorelko, O., Pozdniakov, S., 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., 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., Strakovsky, I.I., Strauch, S., Taiuti, M., Tedeschi, D.J., Teymurazyan, A., Thoma, U., Tkabladze, A., Tkachenko, S., Todor, L., Tur, C., Ungaro, M., Vineyard, M.F., Vlassov, A.V., Weinstein, L.B., Williams, M., Wolin, E., Wood, M.H., Yegneswaran, A., Zana, L., Zhang, J., Zhao, B., 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CLAS, and 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)

Subjects
13.60.Rj, 13.40.-f, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, High Energy Physics - Experiment
Abstract

The reaction $\gamma p \to pK^+K^-$ 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 production cross section for the reaction $\gamma p \to K^-\Theta^{++}$ were obtained in the mass range from 1.5 to 2.0 GeV/c$^2$, with an upper limit of about 0.15 nb, 95% C.L. for a narrow resonance with a mass $M_{\Theta^{++}}=1.54$ GeV/c$^2$. This result places a very stringent upper limit on the $\Theta^{++}$ width., Comment: 6 pages, 4 figures

Published
2006

15. The extraction of [formula omitted] total cross section from [formula omitted]

Author

Qian, X., Chen, W., Gao, H., Hicks, K., Kramer, K., Laget, J.M., Mibe, T., Stepanyan, S., Tedeschi, D.J., Xu, W., Adhikari, K.P., Amaryan, M., Anghinolfi, M., Baghdasaryan, H., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Bellis, M., Biselli, A.S., Bookwalter, C., Branford, D., Briscoe, W.J., Brooks, W.K., Burkert, V.D., Careccia, S.L., Carman, D.S., Cole, P.L., Collins, P., Crede, V., D'Angelo, A., Daniel, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Dey, B., Dhamija, S., Dickson, R., Djalali, C., Dodge, G.E., Doughty, D., Dupre, R., Eugenio, P., Fedotov, G., Fegan, S., Fersch, R., Fradi, A., Gabrielyan, M.Y., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Gohn, W., Golovatch, E., Gothe, R.W., Griffioen, K.A., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Hassall, N., Heddle, D., Holtrop, M., Hyde, C.E., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Jawalkar, S.S., Johnstone, J.R., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, W., Klein, A., Klein, F.J., Kubarovsky, V., Kuleshov, S.V., Kuznetsov, V., Livingston, K., Lu, H.Y., Martinez, D., Mayer, M., McCracken, M.E., McKinnon, B., Meyer, C.A., Mineeva, T., Mirazita, M., Mokeev, V., Moriya, K., Morrison, B., Munevar, E., Nadel-Turonski, P., Nasseripour, R., Nepali, C.S., Niccolai, S., Niculescu, G., Niculescu, I., Niroula, M.R., Osipenko, M., Ostrovidov, A.I., Park, K., Park, S., Pasyuk, E., Pereira, S. Anefalos, Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J.W., Procureur, S., Protopopescu, D., Raue, B.A., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Sabatié, F., Saini, M.S., Salgado, C., Schott, D., Schumacher, R.A., Seraydaryan, H., Sharabian, Y.G., Smith, E.S., Sober, D.I., Sokhan, D., Strakovsky, I.I., Strauch, S., Taiuti, M., Tkachenko, S., Ungaro, M., Vineyard, M.F., Watts, D.P., Weinstein, L.B., Weygand, D.P., Williams, M., Wolin, E., Wood, M.H., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.W.

Published
2009
Full Text
View/download PDF

16. The extraction of ϕ–N total cross section from d(γ,pK+K−)n

Author

Qian, X., primary, Chen, W., additional, Gao, H., additional, Hicks, K., additional, Kramer, K., additional, Laget, J.M., additional, Mibe, T., additional, Stepanyan, S., additional, Tedeschi, D.J., additional, Xu, W., additional, Adhikari, K.P., additional, Amaryan, M., additional, Anghinolfi, M., additional, Baghdasaryan, H., additional, Ball, J., additional, Battaglieri, M., additional, Batourine, V., additional, Bedlinskiy, I., additional, Bellis, M., additional, Biselli, A.S., additional, Bookwalter, C., additional, Branford, D., additional, Briscoe, W.J., additional, Brooks, W.K., additional, Burkert, V.D., additional, Careccia, S.L., additional, Carman, D.S., additional, Cole, P.L., additional, Collins, P., additional, Crede, V., additional, D'Angelo, A., additional, Daniel, A., additional, Dashyan, N., additional, De Vita, R., additional, De Sanctis, E., additional, Deur, A., additional, Dey, B., additional, Dhamija, S., additional, Dickson, R., additional, Djalali, C., additional, Dodge, G.E., additional, Doughty, D., additional, Dupre, R., additional, Eugenio, P., additional, Fedotov, G., additional, Fegan, S., additional, Fersch, R., additional, Fradi, A., additional, Gabrielyan, M.Y., additional, Gilfoyle, G.P., additional, Giovanetti, K.L., additional, Girod, F.X., additional, Goetz, J.T., additional, Gohn, W., additional, Golovatch, E., additional, Gothe, R.W., additional, Griffioen, K.A., additional, Guidal, M., additional, Guo, L., additional, Hafidi, K., additional, Hakobyan, H., additional, Hanretty, C., additional, Hassall, N., additional, Heddle, D., additional, Holtrop, M., additional, Hyde, C.E., additional, Ilieva, Y., additional, Ireland, D.G., additional, Ishkhanov, B.S., additional, Isupov, E.L., additional, Jawalkar, S.S., additional, Johnstone, J.R., additional, Joo, K., additional, Keller, D., additional, Khandaker, M., additional, Khetarpal, P., additional, Kim, W., additional, Klein, A., additional, Klein, F.J., additional, Kubarovsky, V., additional, Kuleshov, S.V., additional, Kuznetsov, V., additional, Livingston, K., additional, Lu, H.Y., additional, Martinez, D., additional, Mayer, M., additional, McCracken, M.E., additional, McKinnon, B., additional, Meyer, C.A., additional, Mineeva, T., additional, Mirazita, M., additional, Mokeev, V., additional, Moriya, K., additional, Morrison, B., additional, Munevar, E., additional, Nadel-Turonski, P., additional, Nasseripour, R., additional, Nepali, C.S., additional, Niccolai, S., additional, Niculescu, G., additional, Niculescu, I., additional, Niroula, M.R., additional, Osipenko, M., additional, Ostrovidov, A.I., additional, Park, K., additional, Park, S., additional, Pasyuk, E., additional, Pereira, S. Anefalos, additional, Pisano, S., additional, Pogorelko, O., additional, Pozdniakov, S., additional, Price, J.W., additional, Procureur, S., additional, Protopopescu, D., additional, Raue, B.A., additional, Ricco, G., additional, Ripani, M., additional, Ritchie, B.G., additional, Rosner, G., additional, Rossi, P., additional, Sabatié, F., additional, Saini, M.S., additional, Salgado, C., additional, Schott, D., additional, Schumacher, R.A., additional, Seraydaryan, H., additional, Sharabian, Y.G., additional, Smith, E.S., additional, Sober, D.I., additional, Sokhan, D., additional, Strakovsky, I.I., additional, Strauch, S., additional, Taiuti, M., additional, Tkachenko, S., additional, Ungaro, M., additional, Vineyard, M.F., additional, Watts, D.P., additional, Weinstein, L.B., additional, Weygand, D.P., additional, Williams, M., additional, Wolin, E., additional, Wood, M.H., additional, Zana, L., additional, Zhang, J., additional, Zhao, B., additional, and Zhao, Z.W., additional

Published
2009
Full Text
View/download PDF

17. Moments of the spin structure functions g1p and g1d for 0.05<Q2<3.0 GeV2

Author

Prok, Y., Bosted, P., Burkert, V.D., Deur, A., Dharmawardane, K.V., Dodge, G.E., Griffioen, K.A., Kuhn, S.E., Minehart, R., Adams, G., 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., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B.L., Biselli, A.S., Blaszczyk, L., Boiarinov, S., Bonner, B.E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W.J., Brooks, W.K., Bültmann, S., 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., 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., Dhuga, K.S., Dickson, R., Djalali, C., 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., Feldman, G., Fersh, R.G., Feuerbach, R.J., Forest, T.A., Fradi, A., Funsten, H., Garçon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G.P., Giovanetti, K.L., Girod, F.X., Goetz, J.T., Golovatch, E., Gothe, R.W., 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, F.W., Hicks, K., Hleiqawi, I., Holtrop, M., Huertas, 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., Keith, C.D., Kellie, J.D., Khandaker, M., Kim, K.Y., Kim, K., Kim, W., Klein, A., Klein, F.J., Klusman, M., Kossov, M., Krahn, Z., Kramer, L.H., Kubarovsky, V., Kuhn, J., Kuleshov, S.V., Kuznetsov, V., Lachniet, J., Laget, J.M., Langheinrich, J., Lawrence, D., Li, Ji, Lima, A.C.S., Livingston, K., Lu, H.Y., Lukashin, K., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., McKinnon, B., McNabb, J.W.C., Mecking, B.A., Mestayer, M.D., Meyer, C.A., Mibe, T., Mikhailov, K., 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., 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., Protopopescu, D., Qin, L.M., Raue, B.A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B.G., Rosner, G., Rossi, P., Rowntree, D., Rubin, P.D., Sabatié, F., Salamanca, J., Salgado, C., Santoro, J.P., Sapunenko, V., Schumacher, R.A., Seely, M.L., Serov, V.S., Sharabian, Y.G., Sharov, D., Shaw, J., Shvedunov, N.V., Skabelin, A.V., Smith, E.S., 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., Suleiman, R., 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., Yun, J., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.W.

Subjects
Nucleon structure, Spin structure functions, Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment, Chiral Perturbation Theory
Abstract

The spin structure functions g1 for the proton and the deuteron have been measured over a wide kinematic range in x and Q2 using 1.6 and 5.7 GeV longitudinally polarized electrons incident upon polarized NH3 and ND3 targets at Jefferson Lab. Scattered electrons were detected in the CEBAF Large Acceptance Spectrometer, for 0.05

Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results