Precise measurements of beam spin asymmetries in semi-inclusive π0 production

Autor: J. McAndrew, E. De Sanctis, E. Voutier, Michael Wood, K. Hafidi, Y. Prok, M. Aghasyan, D. I. Sober, S. Strauch, S. S. Stepanyan, D. P. Watts, R. Dupre, P. Eugenio, H. Egiyan, D. Keller, N. D. Kvaltine, F. Sabatié, M. Battaglieri, W. Gohn, M. Taiuti, S. Tkachenko, L. Guo, M. Khandaker, G. E. Dodge, H. Y. Lu, M. Y. Gabrielyan, D. Adikaram, M. Guidal, H. Avakian, M. Anghinolfi, E. Munevar, M. Holtrop, R. De Vita, Victor Mokeev, H. Seraydaryan, G. Rosner, C. E. Taylor, I. Niculescu, N. Guler, M. Ungaro, Y. G. Sharabian, A. Daniel, P. Nadel-Turonski, Luciano Pappalardo, W. J. Briscoe, V. Crede, S. Anefalos Pereira, D. Schott, J. P. Ball, S. Chandavar, D. S. Carman, A. M. Micherdzinska, E. Pasyuk, V. Kuznetsov, E. Seder, E. Golovatch, A. El Alaoui, H. Voskanyan, Y. Ilieva, A. I. Ostrovidov, K. Park, M. J. Amaryan, E. L. Isupov, Z. W. Zhao, N. Gevorgyan, K. Joo, George Davey Smith, D. G. Ireland, R. A. Schumacher, A. Ni, Sergey Kuleshov, S. E. Kuhn, S. Procureur, L. Graham, C. Djalali, V. P. Kubarovsky, B. McKinnon, C. E. Hyde, O. Pogorelko, Volker D. Burkert, A. S. Biselli, S. Bültmann, S. Park, B. Guegan, R. W. Gothe, Lorenzo Zana, S. Stepanyan, S. Fegan, P. Rossi, D. Branford, H. S. Jo, K. L. Giovanetti, Avraham Klein, M. Mirazita, I. I. Strakovsky, P. Khetarpal, C. Salgado, A. Fradi, S. Niccolai, A. Deur, W. Kim, Larry Weinstein, V. Batourine, Martin K. Mayer, P. L. Cole, N. Dashyan, G. Niculescu, H. Moutarde, B. Moreno, M. S. Saini, P. Stoler, K. Livingston, D. Doughty, H. Baghdasaryan, Gerard Gilfoyle, M. Contalbrigo, R. Dickson, Jie Zhang, G. Ricco, I. Bedlinskiy, N. Markov, B. Dey, R. Paremuzyan, M. Paolone, Friedrich Klein, S. Pisano, D. Protopopescu, Brian Raue, S. Pozdniakov, M. Garçon, K. Hicks, A. Kim, D. Rimal, W. Tang, M. Osipenko, B. Zhao, S. S. Jawalkar, I. J. D. MacGregor, D. Hasch, E. Phelps, D. G. Jenkins, F. X. Girod, A. DʼAngelo, J. W. Price, M. Ripani, C. Hanretty, J. T. Goetz, R. P. Bennett, Latifa Elouadrhiri, C. A. Meyer, G. V. Fedotov, D. P. Weygand, K. A. Griffioen, P. Collins
Přispěvatelé: 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), 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), 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), 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)
Rok vydání: 2011
Předmět:
Zdroj: PHYSICS LETTERS B
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Physics Letters B
Physics Letters B, Elsevier, 2011, 704, pp.397-402. ⟨10.1016/j.physletb.2011.09.044⟩
Physics Letters B, 2011, 704, pp.397-402. ⟨10.1016/j.physletb.2011.09.044⟩
Aghasyan, M, Avakian, H, Rossi, P, De Sanctis, E, Hasch, D, Mirazita, M, Adikaram, D, Amaryan, M J, Anghinolfi, M, Baghdasaryan, H, Ball, J, Battaglieri, M, Batourine, V, Bedlinskiy, I, Bennett, R P, Biselli, A S, Branford, D, Briscoe, W J, Bueltmann, S, Burkert, V D, Carman, D S, Chandavar, S, Cole, P L, Collins, P, Contalbrigo, M, Crede, V, D'Angelo, A, Daniel, A, Dashyan, N, De Vita, R, Deur, A, Dey, B, Dickson, R, Djalali, C, Dodge, G E, Doughty, D, Dupre, R, Egiyan, H, El Alaoui, A, Elouadrhiri, L, Eugenio, P, Fedotov, G, Fegan, S, Fradi, A, Gabrielyan, M Y, Garcon, M, Gevorgyan, N, Gilfoyle, G P, Giovanetti, K L, Girod, F X, Goetz, J T, Gohn, W, Golovatch, E, Gothe, R W, Graham, L, Griffioen, K A, Guegan, B, Guidal, M, Guler, N, Guo, L, Hafidi, K, Hanretty, C, Hicks, K, Holtrop, M, Hyde, C E, Ilieva, Y, Ireland, D G, Isupov, E L, Jawalkar, S S, Jenkins, D, Jo, H S, Joo, K, Keller, D, Khandaker, M, Khetarpal, P, Kim, A, Kim, W, Klein, A, Klein, F J, Kubarovsky, V, Kuhn, S E, Kuleshov, S V, Kuznetsov, V, Kvaltine, N D, Livingston, K, Lu, H Y, MacGregor, I J D, Markov, N, Mayer, M, McAndrew, J, McKinnon, B, Meyer, C A, Micherdzinska, A M, Mokeev, V, Moreno, B, Moutarde, H, Munevar, E, Nadel-Turonski, P, Ni, A, Niccolai, S, Niculescu, G, Niculescu, I, Osipenko, M, Ostrovidov, A I, Paolone, M, Pappalardo, L, Paremuzyan, R, Park, K, Park, S, Pasyuk, E, Pereira, S A, Phelps, E, Pisano, S, Pogorelko, O, Pozdniakov, S, Price, J W, Procureur, S, Prok, Y, Protopopescu, D, Raue, B A, Ricco, G, Rimal, D, Ripani, M, Rosner, G, Sabatie, F, Saini, M S, Salgado, C, Schott, D, Schumacher, R A, Seder, E, Seraydaryan, H, Sharabian, Y G, Smith, G D, Sober, D I, Stepanyan, S S, Stepanyan, S, Stoler, P, Strakovsky, I, Strauch, S, Taiuti, M, Tang, W, Taylor, C E, Tkachenko, S, Ungaro, M, Voskanyan, H, Voutier, E, Watts, D, Weinstein, L B, Weygand, D P, Wood, M H, Zana, L, Zhang, J, Zhao, B & Zhao, Z W 2011, ' Precise measurements of beam spin asymmetries in semi-inclusive pi(0) production ', Physics Letters B, vol. 704, no. 5, pp. 397-402 . https://doi.org/10.1016/j.physletb.2011.09.044
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2011.09.044
Popis: We present studies of single-spin asymmetries for neutral pion electroproduction in semi-inclusive deep-inelastic scattering of 5.776 GeV polarized electrons from an unpolarized hydrogen target, using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. A substantial $\sin \phi_h$ amplitude has been measured in the distribution of the cross section asymmetry as a function of the azimuthal angle $\phi_h$ of the produced neutral pion. The dependence of this amplitude on Bjorken $x$ and on the pion transverse momentum is extracted with significantly higher precision than previous data and is compared to model calculations.
Comment: to be submitted PLB
Databáze: OpenAIRE
Externí odkaz: