scholarly journals New methods for B meson decay constants and form factors from lattice NRQCD

2018 ◽  
Vol 97 (5) ◽  
Author(s):  
C. Hughes ◽  
C. T. H. Davies ◽  
C. J. Monahan ◽  
Keyword(s):  
B Meson ◽  
Form Factors ◽  
Meson Decay ◽  
B Meson Decay ◽  
Decay Constants ◽  
New Methods

scholarly journals New methods for B decay constants and form factors from Lattice NRQCD

2018 ◽  
Vol 175 ◽  
pp. 14021
Author(s):  
Christine Davies ◽  
Ciaran Hughes ◽  
Christopher Monahan
Keyword(s):  
B Meson ◽  
Axial Vector ◽  
Form Factors ◽  
B Meson Decay ◽  
Decay Constants ◽  
New Methods ◽  
B Quarks ◽  
Systematic Uncertainties ◽  
Standard Vector ◽  
Pseudo Scalar

We determine the normalisation of scalar and pseudo scalar current operators made from NonRelativistic QCD (NRQCD) b quarks and Highly Improved Staggered (HISQ) light quarks through O(αs∧QCD/mb). We use matrix elements of these operators to extract B meson decay constants and form factors and compare to those obtained using the standard vector and axial vector operators. We work on MILC second-generation 2+1+1 gluon field configurations, including those with physical light quarks in the sea. This provides a test of systematic uncertainties in these calculations and we find agreement between the results to the 2% level of uncertainty previously quoted.

scholarly journals B meson decay constants and Delta B=2 matrix elements with static heavy and doma in-wall light quarks

2015 ◽  
Author(s):  
Tomomi Ishikawa ◽  
Taku Izubuchi ◽  
Christoph Lehner ◽  
Amarjit Soni ◽  
Yasumichi Aoki
Keyword(s):  
B Meson ◽  
Meson Decay ◽  
Matrix Elements ◽  
B Meson Decay ◽  
Decay Constants

scholarly journals B meson decay constants f B c $$ {f}_{B_c} $$ , f B s $$ {f}_{B_s} $$ and f B from QCD sum rules

2014 ◽  
Vol 2014 (7) ◽  
Author(s):  
M. J. Baker ◽  
J. Bordes ◽  
C. A. Dominguez ◽  
J. Peñarrocha ◽  
K. Schilcher
Keyword(s):  
B Meson ◽  
Sum Rules ◽  
Meson Decay ◽  
Qcd Sum Rules ◽  
B Meson Decay ◽  
Decay Constants

B-MESON DECAY CONSTANT REVISITED AND EXTRACTION OF $|\frac{v_{td}}{v_{ts}}|$ FROM $B^0\hbox{--}{\bar B}^0$ MIXING

2004 ◽  
Vol 19 (12) ◽  
pp. 921-925 ◽  
Author(s):  
A. BHATTACHARYA ◽  
S. N. BANERJEE ◽  
B. CHAKRABARTI ◽  
S. BANERJEE
Keyword(s):  
Variational Method ◽  
Decay Constant ◽  
B Meson ◽  
Heavy Meson ◽  
Meson Decay ◽  
Matrix Elements ◽  
Ckm Matrix ◽  
B Meson Decay ◽  
Decay Constants ◽  
Good Agreement

The ratios of Bd and Bs meson decay constant have been estimated using the variational method in conjunction with the relativistic Hamiltonian of the heavy meson in the framework of the statistical model. The ratio of CKM matrix elements [Formula: see text] has been extracted from [Formula: see text] mixing using the estimated decay constants and ratio of Bd and Bs mass differences. The results are found to be in good agreement with the existing theoretical and experimental predictions.

scholarly journals B-meson decay constants: A more complete picture from full lattice QCD

2015 ◽  
Vol 91 (11) ◽  
Author(s):  
B. Colquhoun ◽  
C. T. H. Davies ◽  
J. Kettle ◽  
J. Koponen ◽  
A. T. Lytle ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
B Meson ◽  
Complete Picture ◽  
Meson Decay ◽  
B Meson Decay ◽  
Decay Constants

scholarly journals B-Meson Decay Constants from Improved Lattice Nonrelativistic QCD with Physicalu,d,s, andcQuarks

2013 ◽  
Vol 110 (22) ◽  
Author(s):  
R. J. Dowdall ◽  
C. T. H. Davies ◽  
R. R. Horgan ◽  
C. J. Monahan ◽  
J. Shigemitsu ◽  
...  
Keyword(s):  
B Meson ◽  
Meson Decay ◽  
B Meson Decay ◽  
Decay Constants ◽  
Nonrelativistic Qcd

scholarly journals B -meson decay constants from 2+1 -flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks

2015 ◽  
Vol 91 (5) ◽  
Author(s):  
N. H. Christ ◽  
J. M. Flynn ◽  
T. Izubuchi ◽  
T. Kawanai ◽  
C. Lehner ◽  
...  
Keyword(s):  
Domain Wall ◽  
Lattice Qcd ◽  
B Meson ◽  
Heavy Quarks ◽  
Meson Decay ◽  
B Meson Decay ◽  
Decay Constants
Sign in / Sign up

Export Citation Format

Share Document