Present and future bounds on non-standard neutrino interactions
作者： Nuria Rius , Arcadi Santamaria , Carlos Pe na-Garay , Sacha Davidson
DOI: 10.1088/1126-6708/2003/03/011
关键词:
摘要: We consider Non-Standard neutrino Interactions (NSI), described by four-fermion operators of the form (αγνβ)(γf), where f is an electron or first generation quark. assume these are generated at dimension ≥ 8, so related vertices involving charged leptons, obtained SU(2) transformation νδ→eδ, do not appear tree level. These necessarily arise one loop, via W exchange. catalogue current constraints from sin 2θW measurements in scattering, atmospheric observations, LEP, and bounds on lepton operators. estimate future comparing KamLAND solar data, measuring near detector a factory. Operators constructed with νμ νe should confuse determination oscillation parameters νfactory, because processes we more sensitive than oscillations far detector. For ντ, similar sensitivities
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