Results 41 to 50 of about 117,601 (193)

Production of charged $\rho$ meson in bottom hadron charmed decays and the effect of the finite width correction of the $\rho$ meson

, 2013
We calculate the branching ratio of a bottom hadron decaying into a charmed hadron and a charged $\rho$ meson within the QCD factorization approach. We consider the effect of the finite width correction of the $\rho$ meson.
Guo, Xin-Heng, Lü, Gang, Wiranata, Anton, Yang, Ya-Dong, Zhang, Zhen-Hua   +4 more
core   +1 more source

Theory Status - Puzzles in B Meson Decays and LFU?

SciPost Physics Proceedings, 2019
Currently B meson puzzles motivate many studies of New Physics due to the observed deviations from the Standard Model predictions. There are two B meson puzzles, RD(∗) and RK(∗).
Svjetlana Fajfer
doaj   +1 more source

B-Meson Wavefunction in the Wandzura-Wilczek Approximation

, 2005
The B-meson wavefunction has been studied with the help of the vacuum-to-meson matrix element of the nonlocal operators in the heavy quark effective theory.
Bagen, Ball, Beneke, Botts, Braun, Brodsky, Chernyak, Dahm, Efremov, Eichten, Falk, Genon, Georgi, Grozin, Halperin, Huang, Huang, Huang, Isgur, Isgur, Kawamura, Kawamura, Kawamura, Kawamura, Keum, Lange, Lange, Lepage, Lepage, Li, Li, Li, Li, Lu, Lü, Mahajan, Ming-Zhen Zhou, Nagashima, Neubert, Neubert, Neubert, Szczepaniak, Szczepaniak, Tao Huang, Wandzura, Wei, Xing-Gang Wu   +46 more
core   +1 more source

Vector-pseudoscalar two-meson distribution amplitudes in three-body $B$ meson decays

, 2004
We study three-body nonleptonic decays $B\to VVP$ by introducing two-meson distribution amplitudes for the vector-pseudoscalar pair, such that the analysis is simplified into the one for two-body decays.
A. V. Efremov, C. D. Lu, Chuan-Hung Chen, D. Muller, Hsiang-nan Li, J. Botts, M. Bauer, M. Maul, P. Ball, P. Ball, V. L. Chernyak, V. M. Braun, Y. Y. Keum   +12 more
core   +1 more source

B Physics with NRQCD: A Quenched Study [PDF]

, 1995
We present results on the spectrum of B mesons and heavy baryons, using a non-relativistic formulation for the heavy and a clover action for the light quark.
Collins, S., Davies, C., Khan, A. Ali, Shigemitsu, J., Sloan, J.   +4 more
core   +2 more sources

Dissipative effects in semileptonic B decays

, 1999
We study the time evolution and decay of the neutral B-meson system using quantum dynamical semigroups. New, nonstandard terms appear in the expression of relevant observables; they can be parametrized in terms of six phenomenological constants. Although
Benatti, Benatti, Benatti, Benatti, Benatti, Benatti, Colangelo, Coleman, Ellis, Ellis, F. Benatti, Fonda, Giddings, Gorini, Huet, Kostelecký, Mohapatra, Nakazato, R. Floreanini, Spohn, Srednicki, Tanner   +21 more
core   +1 more source

Probing the inverse moment of B s -meson distribution amplitude via B s → η s form factors

Journal of High Energy Physics
We investigate the inverse moment of the B s -meson light-cone distribution amplitude (LCDA), denoted as λ B s $$ {\lambda}_{B_s} $$ and defined within the heavy quark effective theory, through the calculation of B s → η s form factors.
Rusa Mandal, Praveen S Patil, Ipsita Ray
doaj   +1 more source

Scrutinizing Dark-Matter Scenarios with B → (K,$K^{\ast }$)$\overline{\mathit{\nu }}$ν Decays

Universe
Conceivable explanations of Belle-II measurements of a (surprising) excess of missing energy decays of the B meson to the K meson not covered by standard model neutrino–antineutrino pairs might be offered by additional contributions of dark matter ...
Alexander Berezhnoy, Wolfgang Lucha, Dmitri Melikhov   +2 more
doaj   +1 more source

The interaction of glueball and heavy-light flavoured meson in holographic QCD

European Physical Journal C: Particles and Fields, 2020
We construct the D4/D8 brane configuration in the Witten–Sakai–Sugimoto model by introducing a pair of heavy flavour brane with a heavy-light open string.
Si-wen Li
doaj   +1 more source

Exotic mesons with hidden charm and bottom near thresholds

, 2012
We study heavy hadron spectroscopy near heavy meson thresholds. We employ heavy pseudoscalar meson P and heavy vector meson P* as effective degrees of freedom and consider meson exchange potentials between them. All possible composite states which can be
Hosaka, A., Ohkoda, Shunsuke, Sudoh, K., Yamaguchi, Y., Yasui, S.   +4 more
core   +1 more source