On the matrix elements of dB=0 operators in the heavy meson decay widths

Abstract

We determine the chiral corrections to the matrix elements of the Delta B=0 four-quark operators which are relevant to the studies of the ratios of lifetimes of heavy-light mesons as well as to the power corrections to the inclusive semileptonic heavy-to-light decays. The chiral logarithmic corrections computed here can be combined with the forthcoming estimates of the corresponding matrix elements on the lattice to provide the reliable physics result of the well known bag-parameters B_(1,2) and epsilon_(1,2).

12 pages, 1 figure

References in corpus (32)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Theory of Charmless Inclusive B Decays and the Extraction of V_{ub}
• Spectator Effects in Inclusive Decays of Beauty Hadrons
• Heavy Quark Masses from Sum Rules in Four-Loop Approximation
• Imprecated, yet Impeccable: On the Theoretical Evaluation of Gamma(B -> X_c \ell ν)
• The B^+ B_d^0 Lifetime Difference Beyond Leading Logarithms
• Spectator effects and lifetimes of heavy hadrons
• Lifetime Ratios of Beauty Hadrons at the Next-to-Leading Order in QCD
• Determination of heavy quark non-perturbative parameters from spectral moments in semileptonic B decays
• Non-factorization effects in heavy mesons and determination of |V_{ub}| from inclusive semileptonic B decays
• Determination of B*B pi coupling in unquenched QCD
• A precise determination of the charm quark's mass in quenched QCD
• A Lattice Study of Spectator Effects in Inclusive Decays of B-Mesons
• Heavy quark masses in the continuum limit of quenched Lattice QCD
• Single Intermediate Vector Boson production in e+e- collisions at sqrt(s) = 183 - 209 GeV
• Lattice measurement of the couplings g_infinity and g_Bstar_B_pi
• Theoretical Uncertainties in Gamma_sl(b->u)
• Chiral loop corrections to strong decays of positive and negative parity charmed mesons
• Absolute Branching Fraction Measurements for D^+ and D^0 Inclusive Semileptonic Decays
• Four-quark Operators Relevant to B Meson Lifetimes from QCD Sum Rules
• Remarks on the hadronic matrix elements relevant to the SUSY K-Kbar mixing amplitude
• Nonspectator Effects and B Meson Lifetimes from a Field-theoretic Calculation
• Matrix elements of the complete set of ΔB = 2 and ΔC = 2 operators in heavy meson chiral perturbation theory
• Chiral behavior of the B(s,d)-Bbar(s,d) mixing amplitude in the Standard Model and beyond
• The Theoretical status of $\bar{B}-B$-mixing and lifetimes of heavy hadrons
• Precision study of B^* Bπcoupling for the static heavy-light meson
• Pionic couplings (g^ and g~) in the static heavy quark limit
• Direct Measurements of Absolute Branching Fractions for D0 and D+ Inclusive Semimuonic Decays
• Theoretical progress in describing the B-meson lifetimes
• Chiral loop corrections to weak decays of B mesons to positive and negative parity charmed mesons

Cited by in corpus (6)

• Lepton energy moments in semileptonic charm decays
• The Heavy Quark Expansion for Inclusive Semileptonic Charm Decays Revisited
• Constraining weak annihilation using semileptonic D decays
• Charming Darwin: the evolution of QCD parameters across different species
• Theory of Semileptonic Charm Decays
• Matrix elements of $\Delta B=0$ operators in heavy hadron chiral perturbation theory