Weak production of strangeness at threshold with polarization observables
作者： O.K. Baker
DOI: 10.1016/S0370-2693(02)02839-3
关键词: Charged current 、 Electroweak interaction 、 Polarization (waves) 、 Nuclear physics 、 Particle physics 、 Physics 、 Absorption cross section 、 Hyperon 、 Strangeness 、 Electron 、 Polarization observables
摘要: Abstract The differential cross section for the charged current electroweak reaction e → +p→ ν + Λ at threshold with polarization observables is presented. form of simplified compared to higher energy. An expression given invariant matrix element appropriate when incident electron polarized, and final state hyperon determined. energy dependence resulting shown near threshold. Under right kinematic conditions, there can be a sizeable enhancement in section, making an experimental measurement weak axial-vector factor feasible.
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