Resolved Power Corrections to the Inclusive Decay $\bar{B}\to X_s{\ell }^{+}{\ell }^{-}$

Abstract

We identify the correct power counting of all the variables in the low-$q^2$ window of the inclusive decay $\bar{B}\to X_s{\ell }^{+}{\ell }^{-}$ within the effective theory SCET if a hadronic mass cut is imposed. Furthermore we analyse the resolved power corrections at the order $1/m_b$ in a systematic way. As a special feature, the resolved contributions stay nonlocal when the hadronic mass cut is released. Therefore they represent an irreducible uncertainty independent of the hadronic mass cut.

arXiv comment8 pages, 3 figures, based on talks given by T.H. at the Sixth Workshop on Theory, "Phenomenology and Experiments in Flavour Physics", Capri, 11-13 June 2016, and at the MIAPP Scientific Programme "Flavour Physics with High-Luminosity Experiments", Munich, 24 October -18 November 2016, published in the proceedings

References in corpus (7)

• Weak Decays Beyond Leading Logarithms
• Measurement of form-factor independent observables in the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• Present Status of Inclusive Rare B Decays
• Factorization at Subleading Power and Irreducible Uncertainties in $\bar{B}\to X_s\gamma$ Decay
• Radiative and Electroweak Penguin Decays of B Mesons
• Enhanced Non-local Power Corrections to the B->X_s+gamma Decay Rate
• New physics search with flavour in the LHC era

Cited by in corpus (1)

• Resolved $1/m_b$ contributions to $\bar{B}\to X_{s,d}{\ell }^{+}{\ell }^{-}$ and $\bar{B}\to X_s\gamma$