학술논문
Polarized Structure Function $\sigma_{LT'}$ from $\pi^0 p$ Electroproduction Data in the Resonance Region at $0.4$ GeV$^2 < Q^2 < 1.0$ GeV$^2$
Document Type
Working Paper
Author
Isupov, E. L.; Burkert, V. D.; Golubenko, A. A.; Joo, K.; Markov, N. S.; Mokeev, V. I.; Smith, L. C.; Armstrong, W. R.; Atac, H.; Avakian, H.; Baltzell, N. A.; Barion, L.; Battaglieri, M.; Bedlinskiy, I.; Benmokhtar, F.; Bianconi, A.; Biondo, L.; Biselli, A. S.; Bondi, M.; Bossù, F.; Briscoe, W. J.; Brooks, W. K.; Bulumulla, D.; Capobianco, R. A.; Carman, D. S.; Carvajal, J. C.; Chatagnon, P.; Chesnokov, V.; Ciullo, G.; Cole, P. L.; Clary, B. A.; Contalbrigo, M.; Costantini, G.; D'Angelo, A.; Dashyan, N.; De Vita, R.; Defurne, M.; Deur, A.; Diehl, S.; Djalali, C.; Dupre, R.; Egiyan, H.; Alaoui, A. El; Fassi, L. El; Elouadrhiri, L.; Eugenio, P.; Fegan, S.; Filippi, A.; Gavalian, G.; Gilfoyle, G. P.; Glazier, D. I.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Guo, L.; Hafidi, K.; Hakobyan, H.; Hattawy, M.; Hayward, T. B.; Heddle, D.; Hicks, K.; Hobart, A.; Holtrop, M.; Illari, I.; Ireland, D. G.; Jenkins, D.; Jo, H. S.; Keller, D.; Khanal, A.; Khandaker, M.; Kim, A.; Kim, W.; Klein, F. J.; Klimenko, V.; Kripko, A.; Kubarovsky, V.; Lagerquist, V.; Lanza, L.; Leali, M.; Lenisa, P.; Livingston, K.; MacGregor, I. J. D.; Marchand, D.; Marsicano, L.; Mascagna, V.; McKinnon, B.; Meziani, Z. E.; Migliorati, S.; Mineeva, T.; Mirazita, M.; Camacho, C. Munoz; Nadel-Turonski, P.; Neupane, K.; Niccolai, S.; O'Connell, T.; Osipenko, M.; Pandey, P.; Paolone, M.; Pappalardo, L. L.; Paremuzyan, R.; Pasyuk, E.; Paul, S. J.; Phelps, W.; Pilleux, N.; Pogorelko, O.; Poudel, J.; Price, J. W.; Prok, Y.; Raue, B. A.; Reed, T.; Ripani, M.; Ritman, J.; Rowley, J.; Sabatié, F.; Salgado, C.; Schmidt, A.; Schumacher, R. A.; Sharabian, Y. G.; Shirokov, E. V.; Shrestha, U.; Simmerling, P.; Sokhan, D.; Sparveris, N.; Stepanyan, S.; Strakovsky, I. I.; Strauch, S.; Tan, J. A.; Tyson, R.; Ungaro, M.; Vallarino, S.; Venturelli, L.; Voskanyan, H.; Voutier, E.; Watts, D.; Wei, K.; Wei, X.; Wood, M. H.; Yale, B.; Zachariou, N.; Zhang, J.; Ziegler, V.
Source
Subject
Language
Abstract
The first results on the $\sigma_{LT'}$ structure function in exclusive $\pi^0p$ electroproduction at invariant masses of the final state of 1.5 GeV $<$ $W$ $<$ 1.8 GeV and in the range of photon virtualities 0.4 GeV$^2 < Q^2 < 1.0$ GeV$^2$ were obtained from data on beam spin asymmetries and differential cross sections measured with the CLAS detector at Jefferson Lab. The Legendre moments determined from the $\sigma_{LT'}$ structure function have demonstrated sensitivity to the contributions from the nucleon resonances in the second and third resonance regions. These new data on the beam spin asymmetries in $\pi^0p$ electroproduction extend the opportunities for the extraction of the nucleon resonance electroexcitation amplitudes in the mass range above 1.6 GeV.
Comment: 7 pages, 3 figures
Comment: 7 pages, 3 figures