Rare decays $\bar{B}\to X_{s(d)}\gamma$ at the NLO

Abstract

We present an independent calculation of $\mathcal{O}({\alpha }_s)$ matrix elements of the QCD penguin operators for the decays $\bar{B}\to X_{s(d)}\gamma$. The Mellin-Barnes representation technique is applied for the systematic numerical evaluation of involved two-loop diagrams. The numerical effect of the calculated contributions is confirmed to be of order of 1%. We also present an updated numerical analysis for $\bar{B}\to X_{s(d)}\gamma$ decay rates.

arXiv comment15 pages, 4 figures

References in corpus (32)

• Weak Radiative B-Meson Decay Beyond Leading Logarithms
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Quark mass effects in B -> Xs gamma
• Theoretical Uncertainties and Phenomenological Aspects of $B\to X_s\gamma$ Decay
• A Measurement of the Branching Fraction for the Inclusive B --> X(s) gamma Decays with the Belle Detector
• Nonperturbative Contributions to the Inclusive Rare Decays $B\to X_s\gamma$ and $B\to X_s{\ell }^{+}{\ell }^{-}$
• Virtual $O(\a_s)$ corrections to the inclusive decay $b\to s\gamma$
• Two-loop mixing of dimension-five flavor-changing operators
• B decay and the Upsilon mass
• B decays in the upsilon expansion
• Calculation of two-loop virtual corrections to b --> s l+ l- in the standard model
• Exact ${\alpha }_s$ Calculation of $b\to s+\gamma$, \ $b\to s+g$
• Photon Energy Spectrum in $B\to X_s\gamma$ and Comparison with Data
• Corrections of Order ${\Lambda }_{QCD}^2/m_c^2$ to Inclusive Rare B Decays
• Completing the NLO QCD calculation of B -> Xs gamma
• Two-loop virtual corrections to B --> X_s l^+ l^- in the standard model
• Bremsstrahlung corrections to the decay $b\to s\gamma$
• $O(m_c^{-2})$ nonperturbative corrections to the inclusive rate of the decay $B\to X_s\gamma$
• Two-loop matching of the dipole operators for $b\to s\gamma$ and $b\to sgluon$
• Elementary derivation of a recently proposed integral representation for permanents
• Long Distance Contributions to Penguin Processes $b\to s\gamma$ and $b\to d\gamma$
• Next-To-Leading-Order Matching for the Magnetic Photon-Penguin Operator in the $B\to X_s\gamma$ Decay
• Complete electroweak matching for radiative B decays
• Inclusive Decay Rate for $B\to X_d+\gamma$ in Next-to-Leading Logarithmic Order and CP Asymmetry in the Standard Model
• Calculation of next-to-leading QCD corrections to b -> s gluon
• Two-Loop Matrix Element of the Current-Current Operator in the Decay B -> X_s gamma
• Leading logarithms of the $b$ quark mass in inclusive $B\to X_s\gamma$ decay
• Electroweak effects in radiative B decays
• The rare decay b--> s gluon beyond leading logarithms
• CP Asymmetry for Inclusive Decay $B\to X_d+\gamma$ in the Minimal Supersymmetric Standard Model
• Short and Long Distance Interplay in Inclusive $B\to X_d\gamma$ Decays
• Direct CP-asymmetry in Inclusive Rare B-decays in 2HDM

Cited by in corpus (5)

• Complete NNLO QCD Analysis of B -> X_s l^+ l^- and Higher Order Electroweak Effects
• NNLL QCD Contribution of the Electromagnetic Dipole Operator to Gamma(anti-B -> X(s) gamma)
• B->X_s l^+l^- in the MSSM at NNLO
• Reduction of Charm Quark Mass Scheme Dependence in $\bar{B}\to X_s\gamma$ at the NNLL Level
• Status of SM calculations of b > s transitions