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

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.

Download Full-text

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

10.22323/1.214.0376 ◽

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

Download Full-text

B and D Meson Decay Constants Revisited

Modern Physics Letters A ◽

10.1142/s0217732397002181 ◽

1997 ◽

Vol 12 (28) ◽

pp. 2133-2140 ◽

Cited By ~ 4

Author(s):

B. Chakrabarti

Keyword(s):

Variational Method ◽

Statistical Model ◽

Potential Model ◽

D Meson ◽

Heavy Meson ◽

Meson Decay ◽

Double Ratio ◽

Decay Constants ◽

Lattice Calculations ◽

Good Agreement

The ratios of B and D meson decay constants and also the double ratio (fBs/fBd)/(fDs/fDd) have been calculated using the variational method in conjunction with the relativistic Hamiltonian of the heavy meson in the framework of the statistical model. Using six different potentials of the potential model, we have obtained reliable results for them which are in good agreement with those of the lattice calculations.

Download Full-text

THE B-MESON DECAY CONSTANT ON THE LATTICE WITH THE STATIC APPROXIMATION

Modern Physics Letters A ◽

10.1142/s0217732392000331 ◽

1992 ◽

Vol 07 (05) ◽

pp. 387-395 ◽

Cited By ~ 9

Author(s):

SHOJI HASHIMOTO ◽

YUJI SAEKI

Keyword(s):

Decay Constant ◽

B Meson ◽

Meson Decay ◽

Lattice Simulation ◽

Static Approximation ◽

B Meson Decay

The B-meson decay constant f B is calculated using the static approximation on the lattice. Our result for f B shows a large dependence on the size of smearing of operators used to create the B-meson. This result implies that one cannot extract the reliable physical value of f B from the lattice simulation with the static approximation.

Download Full-text

B-Meson Decay Constant from Unquenched Lattice QCD

Physical Review Letters ◽

10.1103/physrevlett.95.212001 ◽

2005 ◽

Vol 95 (21) ◽

Cited By ~ 147

Author(s):

Alan Gray ◽

Matthew Wingate ◽

Christine T. H. Davies ◽

Emel Gulez ◽

G. Peter Lepage ◽

...

Keyword(s):

Lattice Qcd ◽

Decay Constant ◽

B Meson ◽

Meson Decay ◽

B Meson Decay

Download Full-text

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

Journal of High Energy Physics ◽

10.1007/jhep07(2014)032 ◽

2014 ◽

Vol 2014 (7) ◽

Cited By ~ 21

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

Download Full-text

B′ MIXING AND THE PSEUDOSCALAR DECAY CONSTANT

International Journal of Modern Physics A ◽

10.1142/s0217751x9000146x ◽

1990 ◽

Vol 05 (17) ◽

pp. 3335-3346

Author(s):

WEI-SHU HOU

Keyword(s):

Decay Constant ◽

B Meson ◽

Meson Decay ◽

Vector Mesons ◽

Decay Constants ◽

Light System ◽

Meson Mixing ◽

Pseudoscalar Decay Constant ◽

Present Understanding ◽

B Mixing

The possibilities of B′ meson mixing is discussed. It is found that if fB′ is not much smaller than fπ, B's (or B'd) mixing is possible if |Vt′s Vt′b′/Vcb′| is large, but only for not too heavy b′ masses, e.g. below LEP I energies. The B'b meson will have large mixing for a broad range of parameters; however, it is hard to produce. The vector mesons (B′*) may exhibit mixing phenomena as well. A discussion of our present understanding of meson decay constants of a heavy-light system [Formula: see text] is given. Further efforts on this problem is needed, which will have an impact on our understanding of B mixing as well.

Download Full-text