266 citations · 995 across the 20 of their papers we have counts for
20 papers
decay form factors from three-flavor lattice QCD
Jon A. Bailey, A. Bazavov, C. Bernard +24
We compute the form factors for the semileptonic decay process in lattice QCD using gauge-field ensembles with 2+1 flavors of sea quark, generated by the MILC Colla…
form factors for new-physics searches from lattice QCD
Jon A. Bailey, A. Bazavov, C. Bernard +22
The rare decay arises from flavor-changing neutral currents and could be sensitive to physics beyond the Standard Model. Here, we present the first $ab…
The form factors at nonzero recoil and from -flavor lattice QCD
Fermilab Lattice, MILC Collaborations, : +24
We present the first unquenched lattice-QCD calculation of the hadronic form factors for the exclusive decay at nonzero recoil. We carr…
from decays and (2+1)-flavor lattice QCD
Fermilab Lattice, MILC Collaborations, : +26
We present a lattice-QCD calculation of the semileptonic form factors and a new determination of the CKM matrix element . We use the MILC asqtad 2+1-flavor l…
semileptonic form factors from unquenched lattice QCD and determination of
J. A. Bailey, A. Bazavov, C. Bernard +22
We compute the semileptonic form factors and update the determination of the CKM matrix element . We use the MILC asqtad ensembles with sea quarks…
The , , and decay constants from flavor lattice QCD
A. Bazavov, C. Bernard, C. Bouchard +23
We present a study of the and leptonic decay constants on the MILC asqtad gauge ensembles using asqtad-improved staggered light quarks and clover heavy quarks in…
Update of from the form factor at zero recoil with three-flavor lattice QCD
Jon A. Bailey, A. Bazavov, C. Bernard +20
We compute the zero-recoil form factor for the semileptonic decay (and modes related by isospin and charge conjugation) using lattice QCD with thre…
Heavy-meson semileptonic decays for the Standard Model and beyond
Yuzhi Liu, Ran Zhou, Jon A. Bailey +25
We calculate the form factors for the semileptonic decays and with lattice QCD. We work at several lattice spacings and a range of light quark mass…
Determination of from a lattice-QCD calculation of the semileptonic form factor with physical quark masses
A. Bazavov, C. Bernard, C. Bouchard +21
We calculate the kaon semileptonic form factor from lattice QCD, working, for the first time, at the physical light-quark masses. We use gauge configurations generated by…
Semileptonic decays at nonzero recoil
Si-Wei Qiu, Carleton DeTar, Aida X. El-Khadra +3
We have analyzed the semileptonic decays and on the full suite of MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as…
K semileptonic form factor with HISQ fermions at the physical point
E. Gámiz, A. Bazavov, C. Bernard +21
We present results for the form factor , needed to extract the CKM matrix element from experimental data on semileptonic decays, on the HISQ $N_f=2+1+1…
Leptonic decay-constant ratio f_{K^+}/f_{pi^+} from lattice QCD with physical light quarks
A. Bazavov, C. Bernard, C. DeTar +15
A calculation of the ratio of leptonic decay constants f_{K^+}/f_{π^+} makes possible a precise determination of the ratio of CKM matrix elements |V_{us}|/|V_{ud}| in the Standard…
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…
Semileptonic B to D decays at nonzero recoil with 2+1 flavors of improved staggered quarks. An update
Si-Wei Qiu, Carleton DeTar, Daping Du +3
The Fermilab Lattice and MILC collaborations are completing a comprehensive program of heavy-light physics on MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as 0…
Kaon semileptonic decay form factors with HISQ valence quarks
E. Gamiz, J. A. Bailey, A. Bazavov +22
We report on the status of our kaon semileptonic form factor calculations using the highly-improved staggered quark (HISQ) formulation to simulate the valence fermions. We present…
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…
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…
Semileptonic B to D decays at nonzero recoil with 2+1 flavors of improved staggered quarks
Si-Wei Qiu, Carleton DeTar, Daping Du +3
The Fermilab Lattice-MILC collaboration is completing a comprehensive program of heavy-light physics on the MILC (2+1)-flavor asqtad ensembles with lattice spacings as small as 0.0…
Semileptonic form factor ratio B_s->D_s/B->D and its application to BR(B^0_s->μ^+μ^-)
Daping Du, Carleton DeTar, Andreas Kronfeld +3
We present a (2+1)-flavor lattice QCD calculation of the form factor ratio between the semileptonic decays and . This r…
A Note on analytic formulas of Feynman propagators in position space
Hong-Hao Zhang, Kai-Xi Feng, Si-Wei Qiu +2
In this paper, we correct an inaccurate result of previous works on the Feynman propagator in position space of a free Dirac field in (3+1)-dimensional spacetime, and we derive the…