Speaker
Prof.
Carleton DeTar
(University of Utah)
Description
We present preliminary, high-precision results for the decay constants
$f_B$ and $f_{B_s}$ from simulations with HISQ heavy and light valence
and sea quarks. Calculations are carried out with several heavy
valence-quark masses on ensembles with 2+1+1 flavors of HISQ sea
quarks at five lattice spacings and three light sea quark mass ratios
$m_{ud}/m_s$, including approximately physical sea quark masses. This
range of parameters provides excellent control of the continuum limit
and of heavy-quark discretization errors.
Primary author
Dr
Javad Komijani
(Washington University)
Co-authors
Prof.
Aida El Khadra
(University of Illinois)
Dr
Alexei Bazavov
(University of California, Riverside/University of Iowa)
Dr
Andreas Kronfeld
(Fermilab)
Prof.
Carleton DeTar
(University of Utah)
Dr
Chris Bouchard
(Ohio State University)
Prof.
Claude Bernard
(Washington University)
Dr
Daping Du
(Syracuse University)
Prof.
Doug Toussaint
(University of Arizona)
Dr
Elizabeth Freeland
(Art Institute of Chicago)
Prof.
Elvira Gamiz
(University of Granada)
Prof.
Ethan Neil
(University of Colorado)
Dr
Heechang Na
(University of Utah)
Prof.
Jack Laiho
(Syracuse University)
Dr
James Simone
(Fermilab)
Mr
Nathan Brown
(Washington University)
Dr
Paul Mackenzie
(Fermilab)
Dr
Ran Zhou
(Fermilab)
Prof.
Robert Sugar
(University of California, Santa Barbara)
Dr
Ruth Van de Water
(Fermilab)
Prof.
Steven Gottlieb
(Indiana University)
Dr
Urs Heller
(American Physical Society)
