Experimental tests of charge symmetry violation in parton distributions

2005/07/02 by J. T. Londergan, D. P. Murdock, A. W. Thomas
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.72.036010

published as Phys.Rev.D72:036010,2005 · 20 pages, 6 figures

arxiv created 2005/07/02 · openalex publication_date 2005/08/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Recently, a global phenomenological fit to high energy data has included charge symmetry breaking terms, leading to limits on the allowed magnitude of such effects. We discuss two possible experiments that could search for isospin violation in valence parton distributions. We show that, given the magnitude of charge symmetry violation consistent with existing global data, such experiments might expect to see effects at a level of several percent. Alternatively, such experiments could significantly decrease the upper limits on isospin violation in parton distributions.

Citations

• Constraints on Parton Charge Symmetry and Implications for Neutrino Reactions
• Asymptotic freedom in parton language
• Charge symmetry violation corrections to determination of the Weinberg angle in neutrino reactions
• Probing charge-symmetry-violating quark distributions in semi-inclusive leptoproduction of hadrons
• Pion and kaon production ine+e−andepcollisions at next-to-leading order
• Sum Rule for High-Energy Electron-Proton Scattering
• Charge symmetry violating contributions to neutrino reactions
• The validity of charge symmetry for parton distributions