Global analysis of inclusive B decays

Abstract

In light of the large amount of new experimental data, we revisit the determination of V_{cb} and m_b from inclusive semileptonic and radiative B decays. We study shape variables to order lqcd^3/m_b^3 and alpha_s^2β_0, and include the order alpha_s, lqcd/m_b correction to the hadron mass spectrum in semileptonic decay, which improves the agreement with the data. We focus on the 1S and kinetic mass schemes for the b quark, with and without expanding m_b-m_c in HQET. We perform fits to all available data from BABAR, BELLE, CDF, CLEO, and DELPHI, discuss the theoretical uncertainties, and compare with earlier results. We find V_{cb} = (41.4 +- 0.6 +- 0.1) x 10^{-3} and m_b^{1S} = 4.68 +- 0.03 GeV, including our estimate of the theoretical uncertainty in the fit.

12 pages, 6 figures. Includes latest BELLE data on lepton and hadron moments. Electromagnetic correction was improperly included in previous version

References in corpus (40)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• 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
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Quark mass effects in B -> Xs gamma
• A quark mass definition adequate for threshold problems
• Nonperturbative Contributions to the Inclusive Rare Decays $B\to X_s\gamma$ and $B\to X_s{\ell }^{+}{\ell }^{-}$
• An inclusive measurement of the photon energy spectrum in b->s gamma decays
• B decay and the Upsilon mass
• B decays in the upsilon expansion
• Top Quark Pair Production close to Threshold: Top Mass, Width and Momentum Distribution
• The bottom $\overline{\mathrm{MS}}$ quark mass from sum rules at next-to-next-to-leading order
• 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
• Moments of semileptonic B decay distributions in the 1/m_b expansion
• Hadron Spectra for Semileptonic Heavy Quark Decay
• Precision determination of ${\alpha }_s$ and $m_b$ from QCD sum rules for $b\overline{b}$.
• Measurement of the Electron Energy Spectrum and its Moments in Inclusive B->X e nu Decays
• B decay shape variables and the precision determination of |Vcb| and mb
• Determination of the Branching Fraction for B --> Xc l nu Decays and of |Vcb| from Hadronic-Mass and Lepton-Energy Moments
• The B -> X_s gamma Photon Spectrum
• Phenomenology of the $1/m_Q$ Expansion in Inclusive $B$ and $D$ Meson Decays
• Hadronic Spectral Moments in Semileptonic B Decays With a Lepton Energy Cut
• Charm Mass Dependence of the $\CO(α_s^2 n_f)$ Correction to Inclusive $B\to X_{c}e{\bar{\nu }}_e$ Decay
• Moments of the photon spectrum in the inclusive $B\to X_s\gamma$ decay
• Corrections to Moments of the Photon Spectrum in the Inclusive Decay B \to X_s γ
• Order alpha_s^2 beta_0 Correction to the Charged Lepton Spectrum in b \to c \ell \barν_\ell decays
• Moments of the B Meson Inclusive Semileptonic Decay Rate using Neutrino Reconstruction
• Measurements of Moments of the Hadronic Mass Distribution in Semileptonic B Decays
• Measurement of the B-Meson Inclusive Semileptonic Branching Fraction and Electron-Energy Moments
• Moments of lepton spectrum in B decays and the $m_b-m_c$ quark mass difference
• Measurement of the B^+/B^0 Production Ratio from the Upsilon(4S) Meson using B^+ -> J/psi K^+ and B^0 -> J/psi K^{0}_{S} Decays
• Duality-Violating 1/m_Q Effects in Heavy Quark Decay
• Heavy Quark Parameters and Vcb from Spectral Moments in Semileptonic B Decays
• Isospin violation in e+ e- --> B Bbar
• Nonperturbative corrections to B -> X_s l^+ l^- with phase space restrictions
• Measurement of Lepton Momentum Moments in the Decay bar{B} \to X \ell \barν and Determination of Heavy Quark Expansion Parameters and |V_cb|
• Reducing theoretical uncertainties in mb and lambda1
• Nonresonant Semileptonic Heavy Quark Decay

Cited by in corpus (120)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
• Renormalization Group Evolution of the Standard Model Dimension Six Operators III: Gauge Coupling Dependence and Phenomenology
• Measurement of the branching ratio of $\bar{B}\to D^{(\ast )}{\tau }^{-}{\bar{\nu }}_{\tau }$ relative to $\bar{B}\to D^{(\ast )}{\ell }^{-}{\bar{\nu }}_{\ell }$ decays with hadronic tagging at Belle
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• The Standard Model as an Effective Field Theory
• SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
• Flavor models for $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• Flavor Physics in the Quark Sector
• Treating the b quark distribution function with reliable uncertainties
• Electromagnetic Logarithms in B -> X_s l+ l-
• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• Precision determination of the CKM element Vcb
• New strategies for New Physics search in B -> K* nu anti-nu, B -> K nu anti-nu and B -> X(s) nu anti-nu decays
• Inclusive semileptonic B decays and the determination of |V_ub|
• Taming the higher power corrections in semileptonic B decays
• Fit to Moments of Inclusive B->Xc lv and B-> Xs gamma Decay Distributions using Heavy Quark Expansions in the Kinetic Scheme
• Higgs Boson Production and Decay at Hadron Colliders
• Inclusive semileptonic fits, heavy quark masses, and V_cb
• Logarithmically Enhanced Corrections to the Decay Rate and Forward Backward Asymmetry in anti-B --> X(s) l+ l-
• Model-Independent Extraction of $|V_{cb}|$ from $\bar{B}\to D^{\ast }\ell \overline{\nu }$
• Rare Decays of Λ_b->Λ+ γand Λ_b ->Λ+ l^{+} l^{-} in the Light-cone Sum Rules
• NSUSY fits
• Precision Measurement of the B to X_s γPhoton Energy Spectrum, Branching Fraction, and Direct CP Asymmetry A_{CP}(B to X_{s+d}γ
• Perturbative corrections to semileptonic b decay distributions
• The B -> D* l nu form factor at zero recoil from three-flavor lattice QCD: A model independent determination of |V_cb|
• O(α_s^2) corrections to semileptonic decay b \to c l \bar ν_l
• Challenges in Semileptonic B Decays
• Precise predictions for ${\Lambda }_b\to {\Lambda }_c$ semileptonic decays
• NNLO fermionic corrections to the charm quark mass dependent matrix elements in B -> X_s gamma
• New predictions for ${\Lambda }_b\to {\Lambda }_c$ semileptonic decays and tests of heavy quark symmetry
• Third order corrections to the semi-leptonic \boldmath{$b\to c$} and the muon decays
• Determination of the Form Factors for the Decay B0 -> D*- l+ nu_l and of the CKM Matrix Element |V_cb|
• Inclusive Measure of |V_ub| with the Analytic Coupling Model
• Moments of the electron energy spectrum and partial branching fraction of $B\to X_{c}e\nu$ decays at Belle
• Kinetic corrections to B -> X_c l nu at one loop
• Advanced Predictions for Moments of the B->X_s+gamma Photon Spectrum
• Measurement of the Moments of the Hadronic Invariant Mass Distribution in Semileptonic B Decays
• CP violation and the CKM matrix
• Even- and Odd-Parity Charmed Meson Masses in Heavy Hadron Chiral Perturbation Theory
• Scalar mesons in weak semileptonic decays of $B_{(s)}$
• 'Bs --> Ds l nu' near zero recoil in and beyond the Standard Model
• Measurement of B(B-->X_s γ), the B-->X_s γ photon energy spectrum, and the direct CP asymmetry in B-->X_{s+d} γ decays
• Magnetic dipole operator contributions to the photon energy spectrum in anti-B -> X(s) gamma at O(alpha(s)^2)
• Footprints of the Beyond in flavor physics: Possible role of the Top Two Higgs Doublet Model
• The impact of the final HERA combined data on PDFs obtained from a global fit
• Charm and beauty quark masses in the MMHT2014 global PDF analysis
• Weak productions of new charmonium in semi-leptonic decays of B_c
• Kinetic operator effects in B-> X_c l nu at O(alpha_s)
• Extracting short distance information from b -> s l+ l- effectively
• Precise predictions for B -> Xs l+ l- in the large q^2 region
• Two-Loop Relations for Heavy-Quark Parameters in the Shape-Function Scheme
• Measurement and interpretation of moments in inclusive semileptonic decays Bbar --> X_c l- nubar
• Charm Quark Mass from Inclusive Semileptonic B Decays
• Study of Bbar --> Xu l nubar decays in BBbar events tagged by a fully reconstructed B-meson decay and determination of |V_{ub}|
• The Kinetic Heavy Quark Mass to Three Loops
• Reparametrization Invariance and Partial Re-Summations of the Heavy Quark Expansion
• Determining the Sign of the Z-Penguin Amplitude
• Normalizing inclusive rare B decays
• Precise predictions for B -> Xc tau nu decay distributions
• Constrained second-order power corrections in HQET: $R(D^{(\ast )})$, $|V_{cb}|$, and new physics
• Measurements of Partial Branching Fractions of Inclusive $B\to X_u{\ell }^{+}{\nu }_{\ell }$ Decays with Hadronic Tagging
• On the $O({\alpha }_s^2)$ corrections to $b\to X_{u}e\bar{\nu }$ inclusive decays
• Chromomagnetic Dipole-Operator Corrections in Bbar -> X_sgamma at O(beta_0 alpha_s^2)
• An investigation of the ${\alpha }_S$ and heavy quark mass dependence in the MSHT20 global PDF analysis
• Hadronic mass and q^2 moments of charmless semileptonic B decay distributions
• The b-quark mass from non-perturbative $N_f=2$ Heavy Quark Effective Theory at $O(1/m_h)$
• Ratios of heavy hadron semileptonic decay rates
• Measurement of the Moments of the Photon Energy Spectrum in B -> X_s gamma Decays and Determination of |V_cb| and m_b at Belle
• The mass of the b-quark from lattice NRQCD and lattice perturbation theory
• The Higgs Decay Width in Multi-Scalar Doublet Models
• Study of $B_s\to {\ell }^{+}{\ell }^{-}\gamma$ decays in covariant quark model
• A methodology for theory uncertainties in the SMEFT
• Full-Phase-Space Twist Expansion in Semileptonic and Radiative B-Meson Decays
• B Meson Decays
• Standard Model evaluation of ${\epsilon }_K$ using lattice QCD inputs for ${\hat{B}}_K$ and $V_{cb}$
• Factorization in B -> K pi e+e- decays
• Constraining weak annihilation using semileptonic D decays
• Decays of Higgs Bosons in the Standard Model and Beyond
• Universality and m_X cut effects in B -> Xs l+ l-
• New physics in inclusive semileptonic $B$ decays including nonperturbative corrections
• Complete (O_7,O_8) contribution to B -> X_s gamma at order alpha_s^2
• Review of Heavy Quark Physics - theory
• Anomalous $tqZ$ coupling effects in rare B- and K-meson decays
• NLO QCD corrections to inclusive semitauonic weak decays of heavy hadrons up to $1/m_b^3$
• Shape Function Effects in B -> X_c l ν_l
• Form Factor Counting and HQET Matching for New Physics in ${\Lambda }_b\to {\Lambda }_c^{\ast }l\nu$
• Determination of the CKM matrix elements |V(xb)|
• The Average Kinetic Energy of the Heavy Quark in ${\Lambda }_b$ in the Bethe-Salpeter Equation Approach
• Brief review on semileptonic B decays
• The role of low-energy observables in precision Higgs analysis
• Towards the Anomalous Dimension to Order Lambda_QCD/m_b for Phase Space Restricted B --> X(u) ell anti-nu and B --> X(s) gamma
• Puzzles of excited charm meson masses
• LHCb anomaly in $\mathbf{B}\to {\mathbf{K}}^{\ast }{\mathbf{\mu }}^{+}{\mathbf{\mu }}^{-}$ optimised observables and potential of ${\mathbf{Z}}^{\prime }$ Model
• Neural network parametrization of the lepton energy spectrum in semileptonic B meson decays
• B -> Xsγconstraints on the top quark anomalous t-> cγcoupling
• Quark mixing and CP violation - the CKM matrix
• Measurement of Differential Branching Fractions of Inclusive $B\to X_u{\ell }^{+}{\nu }_{\ell }$ Decays
• Semileptonic and radiative B decays circa 2005
• The forward-backward asymmetry and differences of partial moments in inclusive semileptonic B decays
• Physics impact of ILC Higgs coupling measurements: the effect of theory uncertainties
• Determination of $|V_{cb}|$ using N${}^3$LO perturbative corrections to $\Gamma (B\to X_c\ell \nu )$ and 1S masses
• The neural network approach to parton distribution functions
• Determination of the b-quark mass and nonperturbative parameters in semileptonic and radiative penguin decays at BABAR
• Unitarity Triangle from CP invariant quantities
• Charming Darwin: the evolution of QCD parameters across different species
• PDF4LHC recommendations for Run II
• Additional Information on Heavy Quark Parameters from Charged Lepton Forward-Backward Asymmetry
• Inclusive semileptonic B decays and |Vcb|
• CKM Parameters and Rare B Decays
• Measurement of the Ratio of Partial Branching Fractions of Inclusive $\overline{B}\to X_u\ell \overline{\nu }$ to $\overline{B}\to X_c\ell \overline{\nu }$ and the Ratio of their Spectra with Hadronic Tagging
• Importance of Non-Perturbative QCD Parameters for Bottom Mesons
• On magnitudes of some CKM matrix elements
• Semileptonic B Decays and Determination of |Vub|
• A Tale of Invisibility: Constraints on New Physics in $b\to s\nu \nu$
• Inclusive determinations of Vub and Vcb
• Status of |Vub|, |Vcb| and their relative phase