Backward electroproduction of $pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$Report as inadecuate




Backward electroproduction of $pi^0$ mesons on protons in the region of nucleon resonances at four momentum transfer squared $Q^2 = 1.0 GeV^2$ - Download this document for free, or read online. Document in PDF available to download.

1 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand 2 CEA - CEA Saclay 3 IPNO - Institut de Physique Nucléaire d-Orsay 4 LPSC - Laboratoire de Physique Subatomique et de Cosmologie 5 SUBATECH - Laboratoire SUBATECH Nantes

Abstract : Exclusive electroproduction of pi0 mesons on protons in the backward hemisphere has been studied at Q2=1.0 GeV2 by detecting protons in the forward direction in coincidence with scattered electrons from the 4 GeV electron beam in Jefferson Lab-s Hall A. The data span the range of the total gamma*p center-of-mass energy W from the pion production threshold to W=2.0 GeV. The differential cross sections sigmaT+epsilonsigmaL, sigmaTL, and sigmaTT were separated from the azimuthal distribution and are presented together with the MAID and SAID parametrizations.

Keywords : electron-proton interactions pion production hadron electroproduction





Author: G. Laveissiere - N. Degrande S. Jaminion - C. Jutier - L. Todor R. Di Salvo - L. Van Hoorebeke L.C. Alexa Stony B.D. Anderson K.A

Source: https://hal.archives-ouvertes.fr/



DOWNLOAD PDF




Related documents