Inclusive B -> X_s l^+ l^-: Complete angular analysis and a thorough study of collinear photons

Abstract

We investigate logarithmically enhanced electromagnetic corrections of all angular observables in inclusive B -> X_s l^+ l^-. We present analytical results, which are supplemented by a dedicated Monte Carlo study on the treatment of collinear photons in order to determine the size of the electromagnetic logarithms. We then give the Standard Model predictions of all observables, considering all available NNLO QCD, NLO QED and power corrections, and investigate their sensitivity to New Physics. Since the structure of the double differential decay rate is modified in the presence of QED corrections, we also propose new observables which vanish if only QCD corrections are taken into account. Moreover, we study the experimental sensitivity to these new observables at Belle II.

arXiv comment60 pages, 13 figures, 4 tables. v2: Minor modifications, matches published version

Cited by in corpus (15)

• On the Standard Model predictions for $R_K$ and $R_{K^{\ast }}$
• Global analysis of $b\to s\ell \ell$ anomalies
• Patterns of New Physics in $b\to s{\ell }^{+}{\ell }^{-}$ transitions in the light of recent data
• On the anomalies in the latest LHCb data
• Rare $B$ Decays as Tests of the Standard Model
• Predictions for Lepton Flavor Universality Violation in Rare B Decays in Models with Gauged $L_{\mu }-L_{\tau }$
• Generalised helicity formalism, higher moments and the $B\to K_{J_K}(\to K\pi ){\bar{\ell }}_1{\ell }_2$ angular distributions
• On lepton non-universality in exclusive $b\to s\ell \ell$ decays
• FlavBit: A GAMBIT module for computing flavour observables and likelihoods
• Dark matter in U(1) extensions of the MSSM with gauge kinetic mixing
• Likelihood Analysis of Supersymmetric SU(5) GUTs
• Implication of family non-universal $Z^{\prime }$ model to rare exclusive $b\to s(l\bar{l},\nu \bar{\nu })$ transitions
• Impact of Warped Extra Dimensions on the Dipole Coefficients in $\mathbf{b}\to \mathbf{s\gamma }$ Transitions
• Resolved $1/m_b$ contributions to $\bar{B}\to X_{s,d}{\ell }^{+}{\ell }^{-}$ and $\bar{B}\to X_s\gamma$
• Rare B-Meson Decays at the Crossroads