Symmetry Tests of the Electroweak Interaction from Muon Capture on 3He

Abstract

Precision measurements in muon capture on 3He to the triton channel provide for interesting tests of the charged electroweak interaction, whether within the Standard Model or beyond it. Based on the statistical capture rate and the triton asymmetry, both the object of recent and on-going experiments using polarised 3He targets, examples of such tests are presented, and shown to lead to stringent complementary constraints for which further dedicated experimental as well as theoretical efforts are required.