Testing Lepton Nonuniversality in b→ cτν¯ < inf > l < /inf > Decay Modes
Testing Lepton Nonuniversality in b→ cτν¯ < inf > l < /inf > Decay Modes
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Date
2021-01-01
Authors
Sahoo, Suchismita
Mohanta, Rukmani
Giri, Anajn K.
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Abstract
We present a model-independent analysis of B→ D(∗ )τν¯l and Bc→ (ηc, J/ ψ) τν¯l processes involving b→ cτν¯l quark-level transitions by considering the most general effective Lagrangian in the presence of new physics. We perform a global fit to various sets of new coefficients, including the measurement on RD(∗), RJ/ψ and the upper limit on Br(Bc→ τνl ). We then show the implication of constrained new couplings on the lepton nonuniversality ratios of these decay modes in bins of q2.
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Springer Proceedings in Physics. v.261