Zobrazeno 1 - 10
of 326
pro vyhledávání: '"Lü, Cai-Dian"'
The similar densities of dark matter and baryons in the universe imply that they might arise from the same ultraviolet model. The B-Mesogenesis, which assumes dark matter is charged under the baryon number, attempts to simultaneously explain the orig
Externí odkaz:
http://arxiv.org/abs/2404.04337
Autor:
Han, Xue-Ying, Hua, Jun, Ji, Xiangdong, Lü, Cai-Dian, Wang, Wei, Xu, Ji, Zhang, Qi-An, Zhao, Shuai
We present a method to compute lightcone distribution amplitudes (LCDAs) of heavy meson within heavy quark effective theory (HQET). Our method utilizes quasi distribution amplitudes (quasi-DAs) with a large momentum component $P^z$. We point out that
Externí odkaz:
http://arxiv.org/abs/2403.17492
We calculate the form factors for the baryon number violation processes of a heavy-flavor baryon decaying into a pseudoscalar meson and a lepton. In the framework of the Standard Model effective field theory, the leptoquark operators at the bottom qu
Externí odkaz:
http://arxiv.org/abs/2401.11978
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 facto
Externí odkaz:
http://arxiv.org/abs/2309.05631
Publikováno v:
Chin.Phys.C 46 (2022) 12, 123103
The perturbative QCD (PQCD) approach based on $k_T$ factorization has made a great achievement for the QCD calculation of the hadronic B decays. Regulating the endpoint divergence by the transverse momentum of quarks in the propagators, one can do th
Externí odkaz:
http://arxiv.org/abs/2207.04190
In this paper we investigate the next-to-leading power contribution to the $B_s \to \gamma\gamma$ and $B_s \to \gamma\ell\bar{\ell}$ decays from the strange quark mass effect with the dispersion approach which is QCD inspired and more predictive. We
Externí odkaz:
http://arxiv.org/abs/2205.05528
A sensitivity study of the unbinned angular analysis of the $B\to D^*(D\pi)\ell \nu_\ell$ decay is presented. In the analysis, it is shown that the Wilson coefficient of the right-handed vector current, $C_{V_R}$, can be measured to precision of 2-4$
Externí odkaz:
http://arxiv.org/abs/2204.06814
We perform a global analysis of the $b\to c\tau\nu$ data using the recent lattice results on the $B_c\to J/\psi$ vector and axial-vector form factors. To explore the effects from the tensor operator of new physics beyond the standard model, we determ
Externí odkaz:
http://arxiv.org/abs/2204.04357
Publikováno v:
Nucl.Phys.B 990 (2023) 116175
We accomplish the analytical computation of the pure weak annihilation non-leptonic $B$-meson decay amplitudes at leading power in the heavy quark expansion. The novel observation regarding such fundamental hadronic quantities is that adding the miss
Externí odkaz:
http://arxiv.org/abs/2202.08073
In this article, we perform a sensitivity study of an unbinned angular analysis of the $B\to D^*\ell \nu_\ell$ decay, including the contributions from the right-handed current. We show that the angular observable can constrain very strongly the right
Externí odkaz:
http://arxiv.org/abs/2106.13855