Measurement of the generalized form factors near threshold via $\gamma^* p \to n\pi^+$ at high $Q^2$

Autor: Park, Kijun, Gothe, Ralf, Adhikari, Krishna, Adikaram-Mudiyanselage, Dasuni, Anghinolfi, Marco, Baghdasaryan, Hovhannes, Ball, Jacques, Battaglieri, Marco, Baturin, Vitaly, Bedlinskiy, Ivan, Bennett, Robert, Biselli, Angela, Bookwalter, Craig, Boyarinov, Sergey, Branford, Derek, Briscoe, William, Brooks, William, Burkert, Volker, Carman, Daniel, Celentano, Andrea, Chandavar, Shloka, Charles, Gabriel, Cole, Philip, Contalbrigo, Marco, Crede, Volker, D'Angelo, Annalisa, Daniel, Aji, Dashyan, Natalya, De Vita, Raffaella, De Sanctis, Enzo, Deur, Alexandre, Djalali, Chaden, Doughty, David, Dupre, Raphael, Alaoui, Ahmed El, Elfassi, Lamiaa, Eugenio, Paul, Fedotov, Gleb, Fradi, Ahmed, Gabrielyan, Marianna, Gevorgyan, Nerses, Gilfoyle, Gerard, Giovanetti, Kevin, Girod, Francois-Xavier, Goetz, John, Gohn, Wesley, Golovach, Evgeny, Graham, Lewis, Griffioen, Keith, Guidal, Michel, Guo, Lei, Hafidi, Kawtar, Hakobyan, Hayk, Hanretty, Charles, Heddle, David, Hicks, Kenneth, Holtrop, Maurik, Ilieva, Yordanka, Ireland, David, Ishkhanov, Boris, Isupov, Evgeny, Jenkins, David, Jo, Hyon-Suk, Joo, Kyungseon, Khandaker, Mahbubul, Khetarpal, Puneet, Kim, Andrey, Kim, Wooyoung, Klein, Andreas, Klein, Franz, Kubarovsky, A., Kubarovsky, Valery, Kuhn, Sebastian, Kuleshov, Sergey, Kvaltine, Nicholas, Livingston, Kenneth, Lu, Haiyun, MacGregor, Ian, Markov, Nikolai, Mayer, Michael, McKinnon, Bryan, Mestayer, Mac, Meyer, Curtis, Mineeva, Taisiya, Mirazita, Marco, Mokeev, Viktor, Moutarde, Herve, Espitia, Edwin Munevar, Nadel-Turonski, Pawel, Nasseripour, Rakhsha, Niccolai, Silvia, Niculescu, Gabriel, Niculescu, Maria-Ioana, Osipenko, Mikhail, Ostrovidov, Alexander, Paolone, Michael, Pappalardo, Luciano, Paremuzyan, Rafayel, Park, Seungkyung, Pereira, Sergio, Phelps, Evan, Pisano, Silvia, Pogorelko, Oleg, Pozdnyakov, Sergey, Price, John, Procureur, Sebastien, Prok, Yelena, Ricco, Giovanni, Rimal, Dipak, Ripani, Marco, Ritchie, Barry, Rosner, Guenther, Rossi, Patrizia, Sabatie, Franck, Saini, Mukesh, Salgado, Carlos, Schott, Diane, Schumacher, Reinhard, Seraydaryan, Heghine, Sharabian, Youri, Smith, Elton, Smith, Gregory, Sober, Daniel, Sokhan, Daria, Stepanyan, Samuel, Stepanyan, Stepan, Stoler, Paul, Strakovski, Igor, Strauch, Steffen, Taiuti, Mauro, Tang, Wei, Taylor, Charles, Tian, Ye, Tkachenko, Svyatoslav, Trivedi, Arjun, Ungaro, Maurizio, Vernarsky, Brian, Vlasov, Alexander, Voutier, Eric, Watts, Daniel, Weygand, Dennis, Wood, Michael, Zachariou, Nicholas, Zhao, Bo, Zhao, Zhiwen, Kalantarians, N., Hyde, C. E.

We report the first extraction of the pion-nucleon multipoles near the production threshold for the $n\pi^+$ channel at relatively high momentum transfer ($Q^2$ up to 4.2 $\rm{GeV^2}$). The dominance of the s-wave transverse multipole ($E_{0+}$), exp

Externí odkaz: http://arxiv.org/abs/1201.0903