{"paper":{"title":"Target and Double Spin Asymmetries of Deeply Virtual $\\pi^0$ Production with a Longitudinally Polarized Proton Target and CLAS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Celentano, A. D'Angelo, A. El Alaoui, A. Filippi, A. Fradi, A.I. Ostrovidov, A. Kim, A. Klein, A Movsisyan, A. Rizzo, A.S. Biselli, B. McKinnon, B.S. Ishkhanov, B. Torayev, C. Djalali, C. Hanretty, C. Salgado, D.G. Ireland, D. Heddle, D. Jenkins, D. Keller, D.P. Watts, D.S. Carman, D. Sokhan, E. De Sanctis, E. Golovatch, E. Munevar, E. Pasyuk, E. Seder, E. Voutier, F.J. Klein, F.X. Girod, G. Charles, G.D. Smith, G. Fedotov, G. Khachatryan, G.P. Gilfoyle, G. Rosner, H. Avakian, H. Egiyan, H. Jiang, H.S. Jo, H. Voskanyan, H.Y. Lu, I. Bedlinskiy, I.I. Strakovsky, I .J .D. MacGregor, Iu. Skorodumina, I. Zonta, J.A. Fleming, J.W. Price, J. Zhang, K.A. Griffioen, K. Hafidi, K. Hicks, K. Joo, K.L. Giovanetti, K.P. Adhikari, K. Park, L.A. Net, L.B. Weinstein, L. Colaneri, L. El Fassi, L. Guo, L. Lanza, L. Zana, M. Battaglieri, M. Contalbrigo, M.E. McCracken, M. Gar\\c{c}on, M. Hattawy, M. Holtrop, M. Khandaker, M. Osipenko, M. Paolone, M. Ripani, M. Taiuti, M. Ungaro, N. Compton, N. Dashyan, N. Markov, N. Sparveris, N. Zachariou, O. Cortes, O. Pogorelko, P. Bosted, P. Eugenio, P.L. Cole, P. Lenisa, P. Mattione, P. Nadel-Turonski, P. Rossi, P. Roy, P. Stoler, R.A. Badui, R.A. Schumacher, R. De Vita, R. Fersch, R.W. Gothe, S. Anefalos Pereira, S. Boiarinov, S. B\\\"ultmann, S. Chandavar, S.E. Kuhn, S. Joosten, S. Niccolai, S. Pisano, S. Stepanyan, S. Strauch, S.V. Kuleshov, T. Cao, T. Chetry, V. Batourine, V. Burkert, V. Crede, V. Kubarovsky, V. Mokeev, V. Sytnik, W. Gohn, W.J. Briscoe, W.K. Brooks, W. Kim, W. Phelps, X. Wei, Y. Ghandilyan, Y.G. Sharabian, Y. Ilieva, Y. Prok, Z. Akbar","submitted_at":"2015-11-10T23:50:56Z","abstract_excerpt":"The target and double spin asymmetries of the exclusive pseudoscalar channel $\\vec e\\vec p\\to ep\\pi^0$ were measured for the first time in the deep-inelastic regime using a longitudinally polarized 5.9 GeV electron beam and a longitudinally polarized proton target at Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS). The data were collected over a large kinematic phase space and divided into 110 four-dimensional bins of $Q^2$, $x_B$, $-t$ and $\\phi$. Large values of asymmetry moments clearly indicate a substantial contribution to the polarized structure functions from transvers"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.03338","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}