Semi-leptonic Decay of Lambda-b in the Standard Model and with New Physics

2015/05/13 by Wu, Wanwei
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.1505.03418

Abstract

Heavy quark decays provide a very advantageous investigation to test the Standard Model (SM). Recently, promising experiments with b quark, as well as the analysis of the huge data sets produced at the B factories, have led to an increasing study and sensitive measurements of relative b quark decays. In this thesis, I calculate various observables in the semi-leptonic decay process Λ_b→ Λ_cτν_τ both in the SM and in the presence of New Physics (NP) operators with different Lorentz structures. The results are relevant for the coming measurement of this semi-leptonic decay at LHC b experiment in CERN, and also provide theoretical predictions to refine the physics beyond the SM.

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