Updated NNLO QCD predictions for the weak radiative B-meson decays

Abstract

Weak radiative decays of the B mesons belong to the most important flavor changing processes that provide constraints on physics at the TeV scale. In the derivation of such constraints, accurate standard model predictions for the inclusive branching ratios play a crucial role. In the current Letter we present an update of these predictions, incorporating all our results for the O(alpha_s^2) and lower-order perturbative corrections that have been calculated after 2006. New estimates of nonperturbative effects are taken into account, too. For the CP- and isospin-averaged branching ratios, we find B_{s gamma} = (3.36 +_ 0.23) * 10^-4 and B_{d gamma} = 1.73^{+0.12}_{-0.22} * 10^-5, for E_gamma > 1.6GeV. Both results remain in agreement with the current experimental averages. Normalizing their sum to the inclusive semileptonic branching ratio, we obtain R_gamma = ( B_{s gamma} + B_{d gamma})/B_{c l nu} = (3.31 +_ 0.22) * 10^-3. A new bound from B_{s gamma} on the charged Higgs boson mass in the two-Higgs-doublet-model II reads M_{H^+} > 480 GeV at 95%C.L.

journal version, 5 pages, no figures

References in corpus (12)

• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
• Current status of the Standard Model CKM fit and constraints on $\Delta F=2$ New Physics
• Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions
• Precision determination of the CKM element Vcb
• Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• NNLO fermionic corrections to the charm quark mass dependent matrix elements in B -> X_s gamma
• Measurement of the $\bar{B}\to X_s\gamma$ Branching Fraction with a Sum of Exclusive Decays
• Charm quark mass dependence of the electromagnetic dipole operator contribution to anti-B -> X(s) gamma at O(alpha**2(s))
• Fermionic corrections to the interference of the electro- and chromomagnetic dipole operators in anti-B --> X(s) gamma at O(alpha(s)**2)
• Completing the Calculation of BLM corrections to B -> Xs gamma
• Chromomagnetic Dipole-Operator Corrections in Bbar -> X_sgamma at O(beta_0 alpha_s^2)

Cited by in corpus (42)

• Strong First Order Electroweak Phase Transition in the CP-Conserving 2HDM Revisited
• The Higgs Vacuum Uplifted: Revisiting the Electroweak Phase Transition with a Second Higgs Doublet
• The Light and Heavy Higgs Interpretation of the MSSM
• Next-to-leading order unitarity fits in Two-Higgs-Doublet models with soft ${\mathbb{Z}}_2$ breaking
• Anomalous muon magnetic moment, supersymmetry, naturalness, LHC search limits and the landscape
• SUSY Meets Her Twin
• SU(5) Unification with TeV-scale Leptoquarks
• A minimal flavored $U(1{)}^{\prime }$ for $B$-meson anomalies
• FCNC decays of SM fermions into a dark photon
• Rare Top Decays as Probes of Flavorful Higgs Bosons
• Reconciling dark matter, $R_{K^{(\ast )}}$ anomalies and $(g-2{)}_{\mu }$ in an $L_{\mu }-L_{\tau }$ scenario
• A top-squark hunter's guide
• Boosting to identify: pseudoscalar searches with di-leptonic tops
• Gauge-independent Renormalization of the N2HDM
• Matching Matters!
• Flavor Physics and CP Violation
• Flavor Changing Heavy Higgs Interactions with Leptons at Hadron Colliders
• CP violation effects in the diphoton spectrum of heavy scalars
• Mixed modulus and anomaly mediation in light of the muon $g-2$ anomaly
• Disfavouring Electroweak Baryogenesis and a hidden Higgs in a CP-violating Two-Higgs-Doublet Model
• Impact of Yukawa-like dimension-5 operators on the Georgi-Machacek model
• Looking for $B\to X_s{\ell }^{+}{\ell }^{-}$ in non-minimal Universal Extra Dimensional model
• Effects of non-minimal Universal Extra Dimension on $B\to X_s\gamma$
• Explaining anomalies of $B$-physics, muon $g-2$ and $W$ mass in $R$-parity violating MSSM with seesaw mechanism
• Exploring a heavy charged Higgs using jet substructure in a fully hadronic channel
• Boosting the charged Higgs search prospects using jet substructure at the LHC
• Rare B-Meson Decays at the Crossroads
• Analysis of the TeV-scale mirage mediation with heavy superparticles
• Missing particle associated with two bottom quarks at the LHC: Mono-$b$ versus 2$b$ with razor variables
• The one-loop impact of a dependent mass: the role of $m_3$ in the C2HDM
• Strange processes in general two Higgs doublet model
• Flavor from the Electroweak Scale
• A Three Doublet Lepton-Specific Model
• One-loop considerations for coexisting vacua in the CP conserving 2HDM
• Search for a light-charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC
• Improved analysis of the (O_7, O_7) contribution to $\bar{B}\to X_s\gamma \gamma$ at $O({\alpha }_s)$
• Imprint of SUSY in radiative B-meson decays
• Prospects for rare B decays at Belle II
• Implications of the Fermi-LAT Pass 8 Galactic Center Excess on Supersymmetric Dark Matter
• Beautiful and charming chromodipole moments
• Rare B, D and K decays, radiative and electroweak penguin decays, including constraints on $V_{td}/V_{ts}$ and ${\epsilon }^{\prime }/\epsilon$: Summary of CKM 2018 working group 3
• On charm-mass dependent NNLO corrections to B -> Xs gamma