Comment on Implications of new physics in the decays $B_c \to (J/\psi,\eta_c)\tau\nu$

Christine Davies; Craig McNeile

arxiv: 1806.02586 · v1 · pith:PAMOLE5Knew · submitted 2018-06-07 · ✦ hep-lat

Comment on Implications of new physics in the decays B_c to (J/psi,η_c)τν

Christine Davies , Craig McNeile This is my paper

classification ✦ hep-lat

keywords decayselementmatrixmesonarxivccqmcommentconfining

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As part of a study BSM corrections to leptonic decays of the $B_c$ meson, Tran et al. (arXiv:1801.06927) use the covariant confining quark model (CCQM) to estimate the matrix element of the pseudo-scalar curent between the vacuum and the $B_c$ meson. We note that this matrix element can be determined using existing lattice QCD results.

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Comment on Implications of new physics in the decays B_c to (J/psi,η_c)τν

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