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Exclusive neutral pion electroproduction in the deeply virtual regime

Authors :
Fuchey, E.
Camsonne, A.
Munoz Camacho, C.
Mazouz, M.
Gavalian, G.
Kuchina, E.
Amarian, M.
A. Aniol, K.
Beaumel, M.
Benaoum, H.
Bertin, P.Y.
Brossard, M.
Canan, M.
Chen, J.-P.
Chudakov, E.
Craver, B.
Cusanno, F.
De Jager, C.W.
Deur, A.
Ferdi, C.
Feuerbach, R.
Fieschi, J.-M.
Frullani, S.
Garcon, M.
Garibaldi, F.
Gayou, O.
Gilman, R.
Gomez, J.
Gueye, P.
Guichon, P.A.M.
Guillon, B.
Hansen, O.
Hayes, D.
Higinbotham, D.W.
Holmstrom, T.
Hyde, C. E.
Ibrahim, H.
Igarashi, R.
Itard, F.
Jiang, X.
Jo, H.S.
Kaufman, L.J.
Kelleher, A.
Kolarkar, A.
Kumbartzki, G.
Laveissiere, G.
LeRose, J.J.
Lindgren, R.
Liyanage, N.
Lu, H.-J.
Margaziotis, D.J.
Meziani, Z.-E.
McCormick, K.
Michaels, R.
Michel, B.
Moffit, B.
Monaghan, P.
Nanda, S.
Nelyubin, V.
Potokar, M.
Qiang, Y.
Ransome, R.D.
Réal, J.S.
Reitz, B.
Roblin, Y.
Roche, J.
Sabatie, F.
Saha, A.
Sirca, S.
Slifer, K.
Solvignon, P.
Subedi, R.
Sulkosky, V.
Ulmer, P.E.
Voutier, E.
Wang, K.
Weinstein, L.B.
Wojtsekhowski, B.
Zheng, X.
Zhu, L.
Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC)
Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
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)
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)
DVCS
HALL A
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)
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)
Source :
Physical Review C, Physical Review C, American Physical Society, 2011, 83, pp.025201. ⟨10.1103/PhysRevC.83.025201⟩, Physical Review C, 2011, 83, pp.025201. ⟨10.1103/PhysRevC.83.025201⟩
Publication Year :
2011
Publisher :
American Physical Society (APS), 2011.

Abstract

We present measurements of the ep->ep pi^0 cross section extracted at two values of four-momentum transfer Q^2=1.9 GeV^2 and Q^2=2.3 GeV^2 at Jefferson Lab Hall A. The kinematic range allows to study the evolution of the extracted hadronic tensor as a function of Q^2 and W. Results will be confronted with Regge inspired calculations and GPD predictions. An intepretation of our data within the framework of semi-inclusive deep inelastic scattering has also been attempted.

Subjects

Subjects :
Physics
Nuclear and High Energy Physics
Particle physics
Meson
010308 nuclear & particles physics
Momentum transfer
FOS: Physical sciences
Elementary particle
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Inelastic scattering
Deep inelastic scattering
01 natural sciences
Nuclear physics
Pion
0103 physical sciences
High Energy Physics::Experiment
Tensor
Nuclear Experiment (nucl-ex)
Nuclear Experiment
010306 general physics
Boson

Details

ISSN :
1089490X, 05562813, 24699985, and 24699993
Volume :
83
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi.dedup.....1398f82daee73197ab7bbeb112726f39

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