A proposal for B-physics on current lattices

Abstract

A method to extract B-physics parameters (b-quark mass and fB, fBs decay constants) from currently available lattice data is presented and tested. The approach is based on the idea of constructing appropriate ratios of heavy-light meson masses and decay constants, respectively, possessing a precisely known static limit, and evaluating them at various pairs of heavy quark masses around the charm. Via a smooth interpolation in the heavy quark mass from the easily accessible charm region to the asymptotic point, B-physics parameters are computed with a few percent (statistical + systematic) error using recently produced Nf=2 maximally twisted Wilson fermions data.

23 pages, 8 figures; version to appear in JHEP

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Cited by in corpus (41)

• FLAG Review 2019
• FLAG Review 2021
• Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
• Light Meson Physics from Maximally Twisted Mass Lattice QCD
• Towards a theory of hadron resonances
• B-physics from Nf=2 tmQCD: the Standard Model and beyond
• Average up/down, strange and charm quark masses with Nf=2 twisted mass lattice QCD
• FLAG Review 2024
• Computing K and D meson masses with N_f = 2+1+1 twisted mass lattice QCD
• Challenges in Semileptonic B Decays
• Mass of the b-quark and B-decay constants from Nf=2+1+1 twisted-mass Lattice QCD
• Neutral $B$ meson mixings and $B$ meson decay constants with static heavy and domain-wall light quarks
• First lattice calculation of radiative leptonic decay rates of pseudoscalar mesons
• OPE, charm-quark mass, and decay constants of D and D_s mesons from QCD sum rules
• Decay constants of heavy pseudoscalar mesons from QCD sum rules
• Lattice QCD determination of m_b, f_B and f_Bs with twisted mass Wilson fermions
• Extraction of HQE parameters from unquenched lattice data on pseudoscalar and vector heavy-light meson masses
• 'Bs --> Ds l nu' near zero recoil in and beyond the Standard Model
• Non-perturbative quark mass renormalisation and running in $N_f=3$ QCD
• Constraints for the semileptonic $B\to D^{(\ast )}$ form factors from lattice QCD simulations of two-point correlation functions
• Lattice QCD study of inclusive semileptonic decays of heavy mesons
• Exotic Tetraquark states with two $\bar{b}$-quarks and $J^P=0^{+}$ and $1^{+}$ $B_s$ states in a nonperturbatively-tuned Lattice NRQCD setup
• Parameters of Heavy Quark Effective Theory from Nf=2 lattice QCD
• The continuum limit of the static-light meson spectrum
• An exploratory study of heavy domain wall fermions on the lattice
• The static-light baryon spectrum from twisted mass lattice QCD
• Leptonic D_s decays in two-flavour lattice QCD
• Toward accurate form factors for $B$-to-light meson decay from lattice QCD
• Vacuum Insertion Approximation and the $\Delta I=1/2$ rule:a lattice QCD test of the naïve factorization hypothesis for $K$, $D$, $B$ and static mesons
• Neutral meson oscillations in the Standard Model and beyond from Nf=2 Twisted Mass Lattice QCD
• f_B and f_Bs with maximally twisted Wilson fermions
• Lattice renormalisation of O(a) improved heavy-light operators: an addendum
• HQE parameters from unquenched lattice data on pseudoscalar and vector heavy-light meson masses
• Charm and bottom quark masses on the lattice
• Quark Flavor Physics Review
• Quark masses with Nf=2 twisted mass lattice QCD
• Lattice QCD Study of $B$-meson Decay Constants from ETMC
• The Beauty of Lattice Perturbation Theory: The Role of Lattice Perturbation Theory in B Physics
• Masses and decay constants of $B_c^{(\ast )}$ mesons with $N_f=2+1+1$ twisted mass fermions
• Rare Leptonic B decays
• Extraction of $B_s\to D_s^{(\ast )}$ form factors from $N_f=2$ lattice QCD