Exclusive $\bm{π^{0}p}$ electroproduction off protons in the resonance region at photon virtualities 0.4~GeV$\bm{^{2}}$ $\bm{\leq~ Q^{2} \leq~1}$~GeV$\bm{^{2}}$
Creators: name: Markov, N.
name: Joo, K.
name: Burkert, V. D.
name: Mokeev, V. I.
name: Smith, L. C.
name: Ungaro, M.
name: Adhikari, S.
name: ~Amaryan, M. J.
name: Angelini, G.
name: ~Atac, H.
name: ~Avakian, H.
name: Gayoso, C. Ayerbe
name: ~Baltzell, N. A.
name: Barion, L.
name: ~Battaglieri, M.
name: ~Bedlinskiy, I.
name: ~Bedlinskiy, I.
name: Benmokhtar, F.
name: ~Biselli, A. S.
name: ~Bossù, F.
name: ~Boiarinov, S.
name: ~Briscoe, W. J.
name: ~Brooks, W. K.
name: ~Carman, D. S.
name: ~Carvajal, J. C.
name: ~Celentano, A.
name: ~Chatagnon, P.
name: Chetry, T.
name: ~Cole, P. L.
name: ~Contalbrigo, M.
name: ~Crede, V.
name: Ciullo, G.
name: ~D'Angelo, A.
name: ~Dashyan, N.
name: ~De~Vita, R.
name: ~De~Sanctis, E.
name: Defurne, M.
name: ~Deur, A.
name: Diehl, S.
name: ~Djalali, C.
name: ~Dupre, R.
name: ~Ehrhart, M.
name: ~El~Alaoui, A.
name: ~El~Fassi, L.
name: ~Eugenio, P.
name: ~Evans, C.
name: ~Filippi, A.
name: ~Ghandilyan, Y.
name: ~Girod, F. X.
name: ~Golovatch, E.
name: ~Gothe, R. W.
name: ~Griffioen, K. A.
name: ~Guidal, M.
name: ~Hafidi, K.
name: ~Hakobyan, H.
name: ~Hattawy, M.
name: ~Hayward, T. B.
name: ~Hicks, K.
name: ~Holtrop, M.
name: ~Ilieva, Y.
name: ~Ireland, D. G.
name: ~Ishkhanov, B. S.
name: ~Isupov, E. L.
name: ~Jenkins, D.
name: ~Jo, H. S.
name: ~Keller, D.
name: ~Khachatryan, M.
name: ~Khanal, A.
name: ~Khandaker, M.
name: ~Kim, A.
name: ~Kim, C. W.
name: ~Kim, W.
name: ~Klein, F. J.
name: ~Kubarovsky, V.
name: Lanza, L.
name: ~Leali, M.
name: ~Livingston, K.
name: ~MacGregor, I . J . D.
name: ~Marchand, D.
name: ~Mascagna, V.
name: ~McKinnon, B.
name: ~Mineeva, T.
name: ~Mirazita, M.
name: ~Nadel-Turonski, P.
name: ~Nanda, S.
name: ~Niccolai, S.
name: ~Niculescu, G.
name: ~Osipenko, M.
name: ~Paolone, M.
name: ~Pappalardo, L. L.
name: ~Paremuzyan, R.
name: ~Park, K.
name: ~Pasyuk, E.
name: ~Phelps, W.
name: ~Pogorelko, O.
name: ~Price, J. W.
name: ~Prok, Y.
name: ~Protopopescu, D.
name: ~Ripani, M.
name: Riser, D.
name: ~Rizzo, A.
name: ~Rowley, J.
name: ~Sabatié, F.
name: ~Salgado, C.
name: ~Schumacher, R. A.
name: ~Sharabian, Y. G.
name: ~Shrestha, U.
name: ~Sokhan, D.
name: ~Soto, O.
name: ~Sparveris, N.
name: ~Stepanyan, S.
name: ~Stoler, P.
name: ~Strakovsky, I. I.
name: ~Strauch, S.
name: ~Taiuti, M.
name: ~Tan, J. A.
name: ~Tyler, N.
name: ~Venturelli, L.
name: ~Voskanyan, H.
name: ~Voutier, E.
name: Wang, R.
name: ~Wei, X.
name: ~Wood, M. H.
name: ~Zachariou, N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The exclusive electroproduction process $ep \rightarrow e'p'π^{0}$ was measured in the range of photon virtualities $Q^{2} = 0.4 - 1.0$~GeV$^{2}$ and the invariant mass range of the $pπ^{0}$ system of $W = 1.1 - 1.8$~GeV. These kinematics are covered in exclusive $π^{0}$ electroproduction off the proton with nearly complete angular coverage in the $pπ^{0}$ center-of-mass system and with high statistical accuracy. Nearly 36000 cross section points were measured, and the structure functions $σ_T+εσ_L$, $σ_{LT}$, and $σ_{TT}$, were extracted via fitting the $ϕ_{π^{0}}$ dependence of the cross section. A Legendre polynomial expansion analysis demonstrates the sensitivity of our data to high-lying $N^*$ and $Δ^{*}$ resonances with $M~&gt;~1.6$ GeV. As part of a broad effort to determine the electrocouplings of the $N^{*}$ and $Δ^{*}$ resonances using both single- and double-pion electroproduction, this dataset is crucial for the reliable extraction of the high-lying resonance electrocouplings from the combined isospin analysis of the $N π$ and $π^{+}π^{-} p$ channels.
description: 21 pages, 24 figures