Zobrazeno 1 - 10
of 508
pro vyhledávání: '"Zhang, Zhi Qing"'
Different from the previous treatment in a two-body framework, we introduce the dimeson distribution amplitudes (DAs) to describe the strong dynamics between the S-wave resonances $a_0(980, 1450)$ and the $K\bar K (\pi\eta)$ pair, where the Gegenbaue
Externí odkaz:
http://arxiv.org/abs/2411.03968
The semileptonic and nonleptonic decays of the b-flavor vector mesons $B^{*}_{u,d,s}$ and $B_{c}^{*}$ are investigated within the covariant light-front quark model (CLFQM). By calculating the form factors of the transitions $B_{u, d, s, c}^{*}\to P$
Externí odkaz:
http://arxiv.org/abs/2410.09672
Just like other heavy flavor mesons, the weak decays of $D^*_{(s)}$ mesons can also provide a platform to check the Standard Model (SM), explore new physics (NP) and understand the mechanisms of weak interactions. At present, the theoretical and expe
Externí odkaz:
http://arxiv.org/abs/2409.07302
Publikováno v:
Phys.Rev.D 110, 033006 (2024)
In this work, we investigate the form factors of the transitions $B_{(s)} \to D_{0}^{\ast}(2300),D_{s0}^{\ast}(2317),$ $ D_{s1}(2460) $ and $ D_{s1}(2536)$ in the covariant light-front quark model (CLFQM), where these final states are considered as P
Externí odkaz:
http://arxiv.org/abs/2405.00496
Publikováno v:
Eur.Phys.J.C 84, 864 (2024)
In this paper, we investigate the quasi-two-body decays $B_c \to K_0^{*}(1430,1950) D_{(s)} \to K \pi D_{(s)}$ within the perterbative QCD (PQCD) framework. The S-wave two-meson distribution amplitudes (DAs) are introduced to describe the final state
Externí odkaz:
http://arxiv.org/abs/2404.04577
Publikováno v:
Eur.Phys.J.C 84, 65 (2024)
In addition to the strong and electromagnetic decay modes, the $\psi(1S,2S)$ and $\eta_{c}(1S,2S)$ can also decay via the weak interaction. Such weak decays can be detected by the high-luminosity heavy-flavor experiments. At present, some of the semi
Externí odkaz:
http://arxiv.org/abs/2311.04431
Publikováno v:
Eur.Phys.J.C 83, 945 (2023)
In this work, we investigate the semileptonic decays of $B_{c}$ meson to $\eta_{c}(1S,2S,3S)$, $\psi(1S,2S,3S)$ and $X(3872)$ within the framework of covariant light-front quark model (CLFQM). We combine the helicity amplitudes via the corresponding
Externí odkaz:
http://arxiv.org/abs/2308.03114
In this work we study the quasi-two-body decays $B_c \to \ K^{*} h \to K \pi h (h = D, D_s, K, \pi, \eta, \eta')$ in the perturbative QCD (PQCD) approach. The two-meson distribution amplitudes (DAs) $\Phi^{\text{P-wave}}_{K\pi}$ are introduced to des
Externí odkaz:
http://arxiv.org/abs/2307.12351
In this work, we investigate the quasi-two-body decays $B_c\to D^*h\to D\pi h$ with $h = (K^0,\pi^0,\eta,\eta^{\prime})$ using the perturbative QCD(PQCD) approach. The description of final state interactions between the $D\pi$ pair is achieved throug
Externí odkaz:
http://arxiv.org/abs/2304.13286
Publikováno v:
Eur. Phys. J. C 83, 477 (2023)
In this work, we investigate the form factors of $B_c$ decays into $J/\Psi, \psi(2S,3S)$, $\eta_c, \eta_c(2S,3S), \chi_{c0}, \chi_{c1}, h_c$ and $X(3872)$ mesons in the covariant light-front quark model (CLFQM). For the purpose of the branching ratio
Externí odkaz:
http://arxiv.org/abs/2301.11107