B->X_s l^+l^- in the MSSM at NNLO

Abstract

We present the results of the calculation of QCD corrections to the matching conditions for the Wilson coefficients of operators mediating the transition b->s l^+l^- in the context of the MSSM. Within a scenario with decoupled heavy gluino the calculated contributions together with those present already in the literature allow for the first time a complete NNLO analysis of B->X_s l^+l^-. We study the impact of the QCD corrections and the reduction of renormalization scale dependencies for the dilepton invariant mass distribution and the forward-backward asymmetry in the inclusive decay B->X_s l^+l^- restricting the analysis to the "low-s" region and small values of tan(beta). The NNLO calculation allows to decrease the theoretical uncertainties related to the renormalization scale dependence below the size of supersymmetric effects in B->X_s l^+l^- depending on their magnitude. While it will be difficult to distinguish the MSSM expectations for the branching ratio from the Standard Model ones, this can become possible in the dilepton invariant mass distribution depending on the MSSM parameters and \hat{s}. In this respect the position of the zero of the forward-backward asymmetry s_0 is even more promising.

35 pages, 10 figures

References in corpus (13)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• More Model-Independent Analysis of b->s Processes
• An inclusive measurement of the photon energy spectrum in b->s gamma decays
• Anomalous Dimension Matrix for Radiative and Rare Semileptonic B Decays up to Three Loops
• Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes
• Complete NNLO QCD Analysis of B -> X_s l^+ l^- and Higher Order Electroweak Effects
• The Impact of Universal Extra Dimensions on B -> X_s gamma, B -> X_s gluon, B -> X_s mu^+ mu^-, K_L -> pi^0 e^ +e^-, and epsilon'/epsilon
• Three-loop matching of the dipole operators for b -> s gamma and b -> s g
• The rare decay B --> X_s l^+ l^- to NNLL precision for arbitrary dilepton invariant mass
• Fermionic NNLL corrections to b -> s γ
• Complete bremsstrahlung corrections to the forward-backward asymmetries in $b\to X_s{\ell }^{+}{\ell }^{-}$
• Effects of the scalar FCNC in $b\to s{l}^{+}{l}^{-}$ transitions and supersymmetry
• Rare decays $\bar{B}\to X_{s(d)}\gamma$ at the NLO

Cited by in corpus (21)

• Symmetries and Asymmetries of B -> K* mu+ mu- Decays in the Standard Model and Beyond
• $\bar{B}\to X_s\gamma$ in the Two Higgs Doublet Model up to Next-to-Next-to-Leading Order in QCD
• Likelihood Functions for Supersymmetric Observables in Frequentist Analyses of the CMSSM and NUHM1
• B, D and K decays
• Implications of LHC Searches on SUSY Particle Spectra: The pMSSM Parameter Space with Neutralino Dark Matter
• Resummation of tan-beta-enhanced supersymmetric loop corrections beyond the decoupling limit
• Supersymmetry in Light of 1/fb of LHC Data
• Two Higgs Doublet Models and $b\to s$ exclusive decays
• Profile likelihood maps of a 15-dimensional MSSM
• SO(10) SUSY GUT for Fermion Masses : Lepton Flavor and CP Violation
• Light Higgs bosons in phenomenological NMSSM
• Determining the Sign of the Z-Penguin Amplitude
• B_s -> phi rho^0 and B_s -> phi pi^0 as a handle on isospin-violating New Physics
• Flavour Physics and CP Violation
• Challenging SO(10) SUSY GUTs with family symmetries through FCNC processes
• Constraining new physics with B to K* mu+ mu- in the early LHC era
• Update of the flavour-physics constraints in the NMSSM
• $B\to X_s{l}^{+}{l}^{-}$ decay in a Top quark two-Higgs-doublet model
• Supersymmetry beyond minimal flavour violation
• Flavour anomalies in supersymmetric scenarios with non-minimal flavour violation
• SUSY beyond minimal flavour violation