Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Cai-Dian Lü"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-41 (2023)
Abstract We calculate the next-to-leading order QCD corrections to B to scalar meson form factors from QCD light-cone sum rules with B meson light-cone distribution amplitudes. We demonstrate that the B meson-to-vacuum correlation functions can be fa
Externí odkaz:
https://doaj.org/article/b5d408ae937d4699af6c3cb4be4b3803
Publikováno v:
Nuclear Physics B, Vol 990, Iss , Pp 116175- (2023)
We identify a novel leading-power contribution to the pure weak annihilation non-leptonic B-meson decay amplitudes, which arises from the hard-collinear gluon exchange between the light quark of the bottom meson and the final-state active partons. Th
Externí odkaz:
https://doaj.org/article/c60a1fe68d88423ba080c2eba898490a
Publikováno v:
Nuclear Physics B, Vol 979, Iss , Pp 115763- (2022)
We study the Standard Model and the new physics predictions for the lepton-flavour-universality violating (LFUV) ratios in various b→sℓ+ℓ− channels with scalar, pseudoscalar, vector, axial-vector, and Λ baryon final states, considering both
Externí odkaz:
https://doaj.org/article/6f734d59738e42859ae7bb8bf2830120
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-38 (2020)
Abstract We revisit QCD calculations of radiative heavy meson decay form factors by including the subleading power corrections from the twist-two photon distribution amplitude at next-to-leading-order in α s with the method of the light-cone sum rul
Externí odkaz:
https://doaj.org/article/917ecd39dc98499ea27066baea3f9731
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-38 (2019)
Abstract 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 stran
Externí odkaz:
https://doaj.org/article/14a770131ab44952a851027c1c208907
Publikováno v:
Nuclear Physics B, Vol 965, Iss , Pp 115354- (2021)
We perform an analysis of the b→cτν data, including R(D(⁎)), R(J/ψ), Pτ(D⁎) and FLD⁎, within and beyond the Standard Model (SM). We fit the B→D(⁎) hadronic form factors in the HQET parametrization to the lattice and the light-cone sum
Externí odkaz:
https://doaj.org/article/f13b1a51186f45f4b9c311a463e6785e
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 10, Pp 1-10 (2018)
Abstract After the discovery of the Higgs boson, several future experiments have been proposed to study the Higgs boson properties, including two circular lepton colliders, the CEPC and the FCC-ee, and one linear lepton collider, the ILC. We evaluate
Externí odkaz:
https://doaj.org/article/98ae1b8192ee476ea9db3bf5142bf84f
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-47 (2017)
Abstract 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-m
Externí odkaz:
https://doaj.org/article/8edb820ef2be4e33ba8d9be3b64e5541
Autor:
Jing-Bin Liu, Cai-Dian Lü
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-14 (2017)
Abstract The spectra and wave functions of heavy–light mesons are calculated within a relativistic quark model which is based on a heavy-quark expansion of the instantaneous Bethe–Salpeter equation by applying the Foldy–Wouthuysen transformatio
Externí odkaz:
https://doaj.org/article/4e157da97a454e4f823caad7a35fc0a1
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 5, Pp 1-13 (2017)
Abstract Within the factorization-assisted topological-amplitude approach, we studied the 33 charmless $$B_{(s)} \rightarrow VV$$ B ( s ) → V V decays, where V stands for a light vector meson. According to the flavor flows, the amplitude of each pr
Externí odkaz:
https://doaj.org/article/755eed7869ba4c738f3f21a8d54825bd