scholarly journals Heavy Domain Wall Fermions: The RBC and UKQCD charm physics program

2018 ◽  
Vol 175 ◽  
pp. 13013
Author(s):  
Peter A Boyle ◽  
Luigi Del Debbio ◽  
Andreas Jüttner ◽  
Ava Khamseh ◽  
Justus Tobias Tsang ◽  
...  
Keyword(s):  
Domain Wall ◽  
Quark Mass ◽  
Pion Mass ◽  
Charm Quark ◽  
Charm Physics ◽  
Decay Constants ◽  
Domain Wall Fermions ◽  
Charm Quark Mass ◽  
Physics Program ◽  
Set Up

We review the domain wall charm physics program of the RBC and UKQCD collaborations based on simulations including ensembles with physical pion mass. We summarise our current set-up and present a status update on the decay constants fD, fDs, the charm quark mass, heavy-light and heavy-strange bag parameters and the ratio ξ

scholarly journals OPE, charm-quark mass, and decay constants of D and Ds mesons from QCD sum rules

2011 ◽  
Vol 701 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Wolfgang Lucha ◽  
Dmitri Melikhov ◽  
Silvano Simula
Keyword(s):  
Quark Mass ◽  
Sum Rules ◽  
Charm Quark ◽  
Qcd Sum Rules ◽  
Decay Constants ◽  
Charm Quark Mass

scholarly journals MESON SPECTROSCOPY AND PROPERTIES USING DYSON-SCHWINGER EQUATIONS

2007 ◽  
Vol 22 (02n03) ◽  
pp. 424-431 ◽  
Author(s):  
A. KRASSNIGG ◽  
C. D. ROBERTS ◽  
S. V. WRIGHT
Keyword(s):  
Quark Mass ◽  
Chiral Limit ◽  
Charm Quark ◽  
Exact Results ◽  
Decay Constants ◽  
Scalar Mesons ◽  
Charm Quark Mass ◽  
Meson Spectroscopy ◽  
Meson States

We study pseudoscalar and scalar mesons using a practical and symmetry preserving truncation of QCD's Dyson-Schwinger equations. We investigate and compare properties of ground and radially excited meson states. In addition to exact results for radial meson excitations we also present results for meson masses and decay constants from the chiral limit up to the charm-quark mass, e.g., the mass of the χc0(2P) meson.

scholarly journals Charm quark mass and D-meson decay constants from two-flavour lattice QCD

2014 ◽  
Author(s):  
Jochen Heitger ◽  
Georg von Hippel ◽  
Stefan Schaefer ◽  
Francesco Virotta
Keyword(s):  
Lattice Qcd ◽  
Quark Mass ◽  
D Meson ◽  
Charm Quark ◽  
Meson Decay ◽  
Decay Constants ◽  
Charm Quark Mass

A NUMERICAL STUDY OF IMPROVED WILSON QUARK ACTIONS ON ANISOTROPIC LATTICES

2007 ◽  
Vol 22 (07n10) ◽  
pp. 515-528
Author(s):  
LIUMING LIU ◽  
SHIQUAN SU ◽  
XIN LI ◽  
CHUAN LIU
Keyword(s):  
Quark Mass ◽  
Numerical Study ◽  
Charm Quark ◽  
Gauge Coupling ◽  
Speed Of Light ◽  
Lattice Action ◽  
Charm Quark Mass ◽  
Anisotropic Lattices ◽  
Optimal Value ◽  
Pseudo Scalar

Tadpole improved Wilson quark actions with clover terms on anisotropic lattices are studied numerically. Using asymmetric lattice volumes, the pseudo-scalar meson dispersion relations are measured for 8 lowest lattice momentum modes with quark mass values ranging from the strange to the charm quark with various values of the gauge coupling β and 3 different values of the bare speed of light parameter ν. These results can be utilized to extrapolate or interpolate to obtain the optimal value for the bare speed of light parameter νopt(m) at a given gauge coupling for all bare quark mass values m. In particular, the optimal values of ν at the physical strange and charm quark mass are given for various gauge couplings. The lattice action with these optimized parameters can then be used to study physical properties of hadrons involving either light or heavy quarks.

scholarly journals Effect of the charm quark mass on the BFKL total cross section at LEP

2000 ◽  
Vol 492 (1-2) ◽  
pp. 56-62 ◽  
Author(s):  
Jochen Bartels ◽  
Carlo Ewerz ◽  
René Staritzbichler
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Quark Mass ◽  
Charm Quark ◽  
Charm Quark Mass

scholarly journals A NUMERICAL STUDY OF IMPROVED QUARK ACTIONS ON ANISOTROPIC LATTICES

2006 ◽  
Vol 21 (05) ◽  
pp. 1015-1032 ◽  
Author(s):  
SHIQUAN SU ◽  
LIUMING LIU ◽  
XIN LI ◽  
CHUAN LIU
Keyword(s):  
Quark Mass ◽  
Numerical Study ◽  
Charm Quark ◽  
Gauge Coupling ◽  
Speed Of Light ◽  
Lattice Action ◽  
Charm Quark Mass ◽  
Anisotropic Lattices ◽  
Optimal Value ◽  
Optimal Values

Tadpole improved Wilson quark actions with clover terms on anisotropic lattices are studied numerically. Using asymmetric lattice volumes, the pseudoscalar meson dispersion relations are measured for eight lowest lattice momentum modes with quark mass values ranging from the strange to the charm quark with various values of the gauge coupling β and three different values of the bare speed of light parameter ν. These results can be utilized to extrapolate or interpolate to obtain the optimal value for the bare speed of light parameter ν opt (m) at a given gauge coupling for all bare quark mass values m. In particular, the optimal values of ν at the physical strange and charm quark mass are given for various gauge couplings. The lattice action with these optimized parameters can then be used to study physical properties of hadrons involving either light or heavy quarks.

scholarly journals Nucleon structure from 2+1-flavor domain-wall QCD

2018 ◽  
Vol 175 ◽  
pp. 06012 ◽  
Author(s):  
Shigemi Ohta
Keyword(s):  
Domain Wall ◽  
Lattice Spacing ◽  
Pion Mass ◽  
Form Factors ◽  
Nucleon Structure ◽  
Current Form ◽  
Gauge Action ◽  
Domain Wall Fermions ◽  
Quark Momentum ◽  
Structure Calculations

Nucleon-structure calculations of isovector vector-and axialvector-current form factors, transversity and scalar charge, and quark momentum and helicity fractions are reported from two recent 2+1-flavor dynamical domain-wall fermions lattice-QCD ensembles generated jointly by the RIKEN-BNL-Columbia and UKQCD Collaborations with Iwasaki × dislocation-suppressing-determinatn-ratio gauge action at inverse lattice spacing of 1.378(7) GeV and pion mass values of 249.4(3) and 172.3(3) MeV.

scholarly journals Charm quark mass dependence of QCD corrections to nonleptonic inclusive B decays

1994 ◽  
Vol 432 (1-2) ◽  
pp. 3-38 ◽  
Author(s):  
E. Bagan ◽  
Patricia Ball ◽  
V.M. Braun ◽  
P. Gosdzinsky
Keyword(s):  
Quark Mass ◽  
Charm Quark ◽  
Mass Dependence ◽  
B Decays ◽  
Charm Quark Mass ◽  
Inclusive B Decays ◽  
Quark Mass Dependence
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