Results 41 to 50 of about 12,458,012 (347)
QCD calculations of B → π, K form factors with higher-twist corrections
Journal of High Energy Physics, 2019 We update QCD calculations of B → π, K form factors at large hadronic recoil by including the subleading-power corrections from the higher-twist B-meson light-cone distribution amplitudes (LCDAs) up to the twist-six accuracy and the strange-quark mass ...
Cai-Dian Lü +3 more
doaj +1 more source
Measurement of the B^{±} Meson Nuclear Modification Factor in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV. [PDF]
Physical Review Letters, 2017 The differential production cross sections of B^{±} mesons are measured via the exclusive decay channels B^{±}→J/ψK^{±}→μ^{+}μ^{-}K^{±} as a function of transverse momentum in pp and Pb-Pb collisions at a center-of-mass energy sqrt[s_{NN}]=5.02 TeV per ...
A. Sirunyan +499 more
semanticscholar +1 more source
$$B\pi $$ B π excited-state contamination in lattice calculations of B-meson correlation functions
European Physical Journal C: Particles and Fields, 2023 Multi-particle states with additional pions are expected to result in a difficult-to-control excited-state contamination in lattice simulations. We show that heavy meson chiral perturbation theory can be employed to estimate the contamination due to two ...
Oliver Bär +2 more
doaj +1 more source
Decaimiento no leptónico del mesón Bc considerando mesones excitados radialmente en el estado final
Iteckne, 2013 En el presente trabajo se muestra parte del estudio del decaimiento no leptónico del mesón Bc, considerado un mesón pseudoescalar o vectorial excitado radialmente (n = 2) en el estado final, se asume la hipótesis de factorización y utiliza el modelo de ...
Juan Carlos Barrios Ávila +2 more
doaj +1 more source
Bottom-quark Fusion Processes at the LHC for Probing Z′ Models and B-meson Decay Anomalies [PDF]
Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018), 2017 We investigate models of a heavy neutral gauge boson Z′ coupling mostly to third generation quarks and second generation leptons. In this scenario, bottom quarks arising from gluon splitting can fuse into Z′ allowing the LHC to probe it.
M. Abdullah +7 more
semanticscholar +1 more source
Perturbative corrections to B → D form factors in QCD
Journal of High Energy Physics, 2017 We compute perturbative QCD corrections to B → D form factors at leading power in Λ/m b , at large hadronic recoil, from the light-cone sum rules (LCSR) with B-meson distribution amplitudes in HQET. QCD factorization for the vacuum-to-B-meson correlation
Yu-Ming Wang +3 more
doaj +1 more source
Minimal flavored U (1') for B -meson anomalies [PDF]
, 2017 We consider an anomaly-free $U(1)'$ model with favorable couplings to heavy flavors in the Standard Model(SM), as motivated by $B$-meson anomalies at LHCb.
Ligong Bian +3 more
semanticscholar +1 more source
Spectroscopic properties of the B meson
EPJ Web of Conferences, 2015 Investigation of the B(bq̄); q = u, d meson properties is carried out using variational method within phenomenological quark antiquark potential(coulomb plus power) model using the Gaussian wave function.
Devlani Nayneshkumar +2 more
doaj +2 more sources
B⟶P,V Form Factors with the B-Meson Light-Cone Sum Rules
Advances in High Energy Physics, 2022 In this review, we discuss the calculation of the B⟶P,V form factors within the framework of the light-cone sum rules with the light-cone distribution amplitudes of the B-meson.
Yue-Long Shen, Yan-Bing Wei
doaj +1 more source
B-meson mixing and lifetimes [PDF]
Nuclear Physics B - Proceedings Supplements, 2006 $B_d$ and $B_s$ meson systems play a fundamental role to test and improve our understanding of Standard Model flavor dynamics. The mixing parameters $ m_{d,s}$ represent important constraints in the unitarity triangle analysis. Their theoretical estimates require non-perturbative calculations of B-meson decay constants and B-parameters; accurate ...
openaire +2 more sources