Precise predictions for B -> Xc tau nu decay distributions

Abstract

We derive precise standard model predictions for the dilepton invariant mass and the tau energy distributions in inclusive B -> Xc tau nu decay. We include Lambda_QCD^2/m_b^2 and alpha_s corrections using the 1S short-distance mass scheme, and estimate shape function effects near maximal tau energy. These results can improve the sensitivity of b -> c tau nu related observables to beyond standard model physics.

7 pages, 4 figures; v2: journal version

References in corpus (1)

• Treating the b quark distribution function with reliable uncertainties

Cited by in corpus (2)

• Precise predictions for ${\Lambda }_b\to {\Lambda }_c$ semileptonic decays
• Semileptonic and leptonic $B$ decays, circa 2016