Corrections to Moments of the Photon Spectrum in the Inclusive Decay B \to X_s γ

Abstract

We investigate the two main uncertainties on the extraction of the nonperturbative matrix elements $\bar{\Lambda }$ and ${\lambda }_1$ from moments of the inclusive rare FCNC decay $B\to X_s\gamma$. The first one is due to unknown matrix elements of higher dimensional operators which are estimated by varying the matrix elements in a range as suggested by dimensional analysis. The effect of these terms is found to be small. A second uncertainty arises from a cut on the photon energy and we give model independent bounds on these uncertainties as well as their estimates from a simplified version of the ACCMM model.

arXiv comment18 pages, 6 figures, revtex, changes to analytical results, conclusions unchanged, submitted as an Erratum to Phys.Rev. D

References in corpus (14)

• QCD Predictions for Lepton Spectra in Inclusive Heavy Flavour Decays
• Inclusive Semileptonic B and Polarized Lambda_b Decays from QCD
• Nonperturbative Corrections to Inclusive Beauty and Charm Decays: QCD versus Phenomenological Models
• Differential Distributions in Semileptonic Decays of the Heavy Flavors in QCD
• Analysis of the Photon Spectrum in Inclusive $B\to X_s\gamma$ Decays
• Nonperturbative Contributions to the Inclusive Rare Decays $B\to X_s\gamma$ and $B\to X_s{\ell }^{+}{\ell }^{-}$
• Order 1/m_b^3 corrections to B\to X_c\ell\barνdecay and their implication for the measurement of \barΛand λ_1
• Implications of the $B\to X\ell {\bar{\nu }}_{\ell }$ lepton spectrum for heavy quark physics
• $O(m_c^{-2})$ nonperturbative corrections to the inclusive rate of the decay $B\to X_s\gamma$
• Higher Order $1/m$ Corrections at Zero Recoil
• Hadron Spectra for Semileptonic Heavy Quark Decay
• V_{ub} from the Hadronic Invariant Mass Spectrum in Semileptonic B Decay
• Hadronic Spectral Moments in Semileptonic B Decays With a Lepton Energy Cut
• Moments of the photon spectrum in the inclusive $B\to X_s\gamma$ decay

Cited by in corpus (37)

• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Quark mass effects in B -> Xs gamma
• NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
• Global analysis of inclusive B decays
• B decays in the upsilon expansion
• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• Shape function effects in B -> X_s gamma and B -> X_u l nu decays
• Constraining the Two-Higgs-Doublet-Model parameter space
• Prospects for charged Higgs searches at the LHC
• Measurement of Inclusive Radiative B-meson Decays with a Photon Energy Threshold of 1.7 GeV
• B decay shape variables and the precision determination of |Vcb| and mb
• The B -> X_s gamma Photon Spectrum
• On the photon energy moments and their `bias' corrections in B -> X_s+γ
• Natural Multi-Higgs Model with Dark Matter and CP Violation
• Advanced Predictions for Moments of the B->X_s+gamma Photon Spectrum
• Light-cone distribution functions for B decays at subleading order in 1/mb
• Subleading shape functions in B -> X_u l νand the determination of |Vub|
• The Mass of the b Quark
• Normalizing inclusive rare B decays
• Radiative B decay spectrum: DGE at NNLO
• Nonperturbative corrections to moments of the decay B -> X_s l^+ l^-
• Power suppressed effects in B-> X_s gamma at O(alpha_s)
• Taming the B --> X(s) gamma spectrum by Dressed Gluon Exponentiation
• Precision Global Determination of the $B\to X_s\gamma$ Decay Rate
• Subleading shape function contributions to the hadronic invariant mass spectrum in B -> X_u l νdecay
• Perturbative QCD- and Power-Corrected Hadron Spectra and Spectral Moments in the Decay $B\to X_s{\ell }^{+}{\ell }^{-}$
• Nonperturbative corrections to B -> X_s l^+ l^- with phase space restrictions
• Complete (O_7,O_8) contribution to B -> X_s gamma at order alpha_s^2
• Update of the flavour-physics constraints in the NMSSM
• Reparametrization Invariance Constraints on Inclusive Decay Spectra and Masses
• Comparing B -> X_u l nu_l to B -> X_s gamma
• On Extracting Heavy Quark Parameters from Moments with Cuts
• Reducing theoretical uncertainties in mb and lambda1
• $\bar{B}\to X_s\gamma$ with a warped bulk Higgs
• Subleading Light-cone distributions functions in the decays Lambda(b) --> X(s) Gamma and Lambda(b) --> X(u) Lepton Anti-Nu
• Recent developments in radiative B decays
• Measurements of |Vub| and |Vcb| from CLEO