Results 21 to 30 of about 117,601 (193)

Rapidity resummation for B-meson wave functions

open access: yesEPJ Web of Conferences, 2014
Transverse-momentum dependent (TMD) hadronic wave functions develop light-cone divergences under QCD corrections, which are commonly regularized by the rapidity ζ of gauge vector defining the non-light-like Wilson lines.
Shen Yue-Long, Wang Yu-Ming
doaj   +1 more source

Measurement of the Bottom contribution to non-photonic electron production in $p+p$ collisions at $\sqrt{s} $=200 GeV [PDF]

open access: yes, 2010
The contribution of $B$ meson decays to non-photonic electrons, which are mainly produced by the semi-leptonic decays of heavy flavor mesons, in $p+p$ collisions at $\sqrt{s} =$ 200 GeV has been measured using azimuthal correlations between non-photonic ...
Aggarwal M.M.   +387 more
core   +8 more sources

QCD calculations of B → π, K form factors with higher-twist corrections

open access: yesJournal 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

$$B\pi $$ B π excited-state contamination in lattice calculations of B-meson correlation functions

open access: yesEuropean 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

open access: yesIteckne, 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

Spectroscopic properties of the B meson

open access: yesEPJ 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

Rare radiative B decays to orbitally excited K mesons [PDF]

open access: yes, 2001
The exclusive rare radiative B meson decays to orbitally excited axial-vector mesons K_1^*(1270), K_1(1400) and to the tensor meson K_2^*(1430) are investigated in the framework of the relativistic quark model based on the quasipotential approach in ...
A. A. Logunov   +45 more
core   +2 more sources

B⟶P,V Form Factors with the B-Meson Light-Cone Sum Rules

open access: yesAdvances 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

Heavy Meson Masses in the \epsilon-Regime of HM\chi PT

open access: yes, 2011
The pseudoscalar and vector heavy meson masses are calculated in the \epsilon-regime of Heavy Meson Chiral Perturbation Theory to order \epsilon^4. The results of this calculation will allow the determination of low-energy coefficients (LECs) directly ...
C. G. Boyd, L. Liu, Raúl A. Briceño
core   +1 more source

Mesurement of the B0 - anti-B0 Mixing Parameter Delta m_d using Semileptonic B0 Decays

open access: yes, 2002
We present a measurement of the B^0-B^0bar mixing parameter Delta m_d using neutral B meson pairs in a 29.1 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider.
A. Bay   +202 more
core   +1 more source

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