614 citations · 5.6k across the 109 of their papers we have counts for
14 papers · 1 filter
Two-point Correlator Fits on HISQ Ensembles
A. Bazavov, C. Bernard, C. Bouchard +22
We present our methods to fit the two point correlators for light, strange, and charmed pseudoscalar meson physics with the highly improved staggered quark (HISQ) action. We make u…
Kaon semileptonic vector form factor and determination of |V_{us}| using staggered fermions
A. Bazavov, C. Bernard, C. M. Bouchard +21
Using staggered fermions and twisted boundary conditions, we calculate the K meson semileptonic decay vector form factor at zero momentum transfer. The HISQ formulation is used for…
Lattice QCD ensembles with four flavors of highly improved staggered quarks
The MILC Collaboration, A. Bazavov, C. Bernard +13
We present results from our simulations of quantum chromodynamics (QCD) with four flavors of quarks: u, d, s, and c. These simulations are performed with a one-loop Symanzik improv…
Charm semileptonic decays and |V_{cs(d)}| from heavy clover quarks and 2+1 flavor asqtad staggered ensembles
Jon A. Bailey, D. Du, A. X. El-Khadra +5
By combining experimentally measured partial branching fractions for the semileptonic decays D to K l nu and D to pi l nu with lattice calculations of the form factors f_+^{D to K}…
Form factors for semi-leptonic B decays
Ran Zhou, Steven Gottlieb, Jon A. Bailey +7
We report on form factors for the B->K l^+ l^- semi-leptonic decay process. We use several lattice spacings from a=0.12 fm down to 0.06 fm and a variety of dynamical quark masses w…
Pseudoscalar meson physics with four dynamical quarks
A. Bazavov, C. Bernard, C. Bouchard +22
We present preliminary results for light, strange and charmed pseudoscalar meson physics from simulations using four flavors of dynamical quarks with the highly improved staggered…
Status of the MILC calculation of electromagnetic contributions to pseudoscalar masses
S. Basak, A. Bazavov, C. Bernard +16
We calculate pseudoscalar masses on gauge configurations containing the effects of 2+1 flavors of dynamical asqtad quarks and quenched electromagnetism. The lattice spacings vary f…
Refining new-physics searches in B -> D tau nu decay with lattice QCD
Jon A. Bailey, A. Bazavov, C. Bernard +23
The semileptonic decay channel B -> D tau nu is sensitive to the presence of a scalar current, such as that mediated by a charged-Higgs boson. Recently the BaBar experiment reporte…
Nonperturbative tuning of an improved relativistic heavy-quark action with application to bottom spectroscopy
Yasumichi Aoki, Norman H. Christ, Jonathan M. Flynn +7
We calculate the masses of bottom mesons using an improved relativistic action for the b-quarks and the RBC/UKQCD Iwasaki gauge configurations with 2+1 flavors of dynamical domain-…
Neutral B-meson mixing from three-flavor lattice QCD: Determination of the SU(3)-breaking ratio ξ
A. Bazavov, C. Bernard, C. M. Bouchard +20
We study SU(3)-breaking effects in the neutral B_d-\bar B_d and B_s-\bar B_s systems with unquenched N_f=2+1 lattice QCD. We calculate the relevant matrix elements on the MILC coll…
Flavor Physics in the LHC era: the role of the lattice
Jack Laiho, Enrico Lunghi, Ruth S. Van de Water
We discuss the present status of global fits to the CKM unitary triangle using the latest experimental and theoretical constraints. For the required nonperturbative weak matrix ele…
B_s->D_s/B->D Semileptonic Form-Factor Ratios and Their Application to BR(B^0_s->μ^+μ^-)
Jon A. Bailey, A. Bazavov, C. Bernard +23
We calculate form-factor ratios between the semileptonic decays \bar{B}->D^+\ell^-\barν and \bar{B}_s->D_s^+\ell^-\barν with lattice QCD. These ratios are a key theoretical input i…
Leptonic decays of charged pseudoscalar mesons - 2012
Jonathan L. Rosner, Sheldon Stone
We review the physics of purely leptonic decays of , , , , and pseudoscalar mesons. The measured decay rates are related to the product of t…
Neutral mixing from 2+1 flavor lattice-QCD: the Standard Model and beyond
C. M. Bouchard, E. D. Freeland, C. Bernard +5
We report on the status of our lattice-QCD calculation of the hadronic contribution to and mixing, with 2+1 flavors of dynamical sea quarks. Preliminary results for…