Flavor distributions in the nucleons: SU(2) sea asymmetry or isospin symmetry breaking?
- 1 January 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 47 (1) , 51-55
- https://doi.org/10.1103/physrevd.47.51
Abstract
The Gottfried sum-rule violation reported by the New Muon Collaboration was interpreted as an indication for a flavor asymmetry of the sea quark in the nucleon. We investigate the alternative possibility that isospin symmetry between the proton and the neutron is breaking. We examine systematically the consequences of this possibility for several processes, namely, neutrino deep inelastic scattering, the charged pion Drell-Yan process, the proton Drell-Yan process, and semi-inclusive deep inelastic scattering, and conclude that a decision between the two alternative explanations is possible. DOI: http://dx.doi.org/10.1103/PhysRevD.47.51 © 1993 The American Physical SocietyKeywords
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