TY - JOUR
T1 - B-meson semileptonic decays with highly improved staggered quarks
AU - Fermilab Lattice and MILC Collaborations
AU - Lytle, Andrew
AU - DeTar, Carleton
AU - El-Khadra, Aida
AU - Gámiz, Elvira
AU - Gottlieb, Steven
AU - Jay, William
AU - Kronfeld, Andreas
AU - Simone, James
AU - Vaquero, Alejandro
N1 - This document was prepared by the Fermilab Lattice and MILC Collaborations using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This material is based upon work supported by the U.S. Department of Energy, Office of Science under grant Contract Numbers DE-SC0015655 (A.L., A.X.K.), DE-SC0010120 (S.G.), DE-SC0011090 (W.J.), and DESC0021006 (W.J.); by the Simons Foundation under their Simons Fellows in Theoretical Physics program (A.X.K.); by the U.S. National Science Foundation under Grants No. PHY17-19626 and PHY20-13064 (C.D., A.V.); by SRA (Spain) under Grant No. PID2019-106087GB-C21 / 10.13039/501100011033 (E.G.); by the Junta de Andalucía (Spain) under Grants No. FQM-101, A-FQM-467-UGR18 (FEDER), and P18-FR-4314 (E.G.); and by AEI (Spain) under Grant No. RYC2020-030244-I / AEI / 10.13039/501100011033 (A.V.).
This document was prepared by the Fermilab Lattice and MILC Collaborations using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This material is based upon work supported by the U.S. Department of Energy, Office of Science under grant Contract Numbers DE-SC0015655 (A.L., A.X.K.), DE-SC0010120 (S.G.), DE-SC0011090 (W.J.), and DESC0021006 (W.J.); by the Simons Foundation under their Simons Fellows in Theoretical Physics program (A.X.K.); by the U.S. National Science Foundation under Grants No. PHY17-19626 and PHY20-13064 (C.D., A.V.); by SRA (Spain) under Grant No. PID2019-106087GB-C21/10.13039/501100011033 (E.G.); by the Junta de Andalucía (Spain) under Grants No. FQM-101, A-FQM-467-UGR18 (FEDER), and P18-FR-4314 (E.G.); and by AEI (Spain) under Grant No. RYC2020-030244-I/AEI/10.13039/501100011033 (A.V.). Computations for this work were carried out in part on facilities of the USQCD Collaboration, which are funded by the Office of Science of the U.S. Department of Energy. An award of computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. This research used resources of the Argonne Leadership Computing Facility, which is a DOE Office of Science User Facility supported under contract DE-AC02-06CH11357. This research also used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. The authors acknowledge support from the ASCR Leadership Computing Challenge (ALCC) in the form of time on the computers Summit and Theta. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility located at Lawrence Berkeley National Laboratory, operated under Contract No. DEAC02-05CH11231. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562. This work used XSEDE Ranch through the allocation TG-MCA93S002 [11]. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources that have contributed to the research results reported within this paper. This research is part of the Frontera computing project at the Texas Advanced Computing Center. Frontera is made possible by National Science Foundation award OAC-1818253 [12].
Computations for this work were carried out in part on facilities of the USQCD Collaboration, which are funded by the Office of Science of the U.S. Department of Energy. An award of computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. This research used resources of the Argonne Leadership Computing Facility, which is a DOE Office of Science User Facility supported under contract DE-AC02-06CH11357. This research also used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. The authors acknowledge support from the ASCR Leadership Computing Challenge (ALCC) in the form of time on the computers Summit and Theta. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility located at Lawrence Berkeley National Laboratory, operated under Contract No. DE-AC02-05CH11231. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562. This work used XSEDE Ranch through the allocation TG-MCA93S002 [11]. The authors acknowledge the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources that have contributed to the research results reported within this paper. This research is part of the Frontera computing project at the Texas Advanced Computing Center. Frontera is made possible by National Science Foundation award OAC-1818253 [12].
PY - 2023/4/6
Y1 - 2023/4/6
N2 - We present an update of the Fermilab Lattice and MILC Collaborations project to compute the form factors for semileptonic B(s)-meson decays. Our calculation uses the highly improved staggered quark (HISQ) action for sea and valence quarks, and ensembles with up, down, strange, and charm quarks in the sea. Using a highly improved action with the MILC Collaboration's gauge ensembles with lattice spacings down to a ≈ 0.03 fm, allows the heavy valence quarks to be treated with the same discretization as the light and strange quarks. This unified treatment of the valence quarks allows for absolutely normalized vector currents, bypassing the need for perturbative matching, which has been a source of uncertainty in previous calculations of B-meson decay form factors by our collaboration. All preliminary form-factor results are blinded.
AB - We present an update of the Fermilab Lattice and MILC Collaborations project to compute the form factors for semileptonic B(s)-meson decays. Our calculation uses the highly improved staggered quark (HISQ) action for sea and valence quarks, and ensembles with up, down, strange, and charm quarks in the sea. Using a highly improved action with the MILC Collaboration's gauge ensembles with lattice spacings down to a ≈ 0.03 fm, allows the heavy valence quarks to be treated with the same discretization as the light and strange quarks. This unified treatment of the valence quarks allows for absolutely normalized vector currents, bypassing the need for perturbative matching, which has been a source of uncertainty in previous calculations of B-meson decay form factors by our collaboration. All preliminary form-factor results are blinded.
UR - https://www.scopus.com/pages/publications/85153178031
UR - https://www.scopus.com/pages/publications/85153178031#tab=citedBy
M3 - Conference article
AN - SCOPUS:85153178031
SN - 1824-8039
VL - 430
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 418
T2 - 39th International Symposium on Lattice Field Theory, LATTICE 2022
Y2 - 8 August 2022 through 13 August 2022
ER -