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pro vyhledávání: '"Cheng, Hai-Yang"'
We perform a global fit to the experimental data of two-body charmed baryon decays based on the topological diagrammatic approach (TDA) and take into account the phase shifts between $S$- and $P$-wave amplitudes as inspired by the recent BESIII measu
Externí odkaz:
http://arxiv.org/abs/2404.01350
Inspired by the recent BESIII measurement of the decay asymmetry and the phase shift between $S$- and $P$-wave amplitudes in the decay $\Lambda_c^+\to \Xi^0K^+$, we perform a global fit to the experimental data of charmed baryon decays based on the t
Externí odkaz:
http://arxiv.org/abs/2401.15926
Autor:
Cheng, Hai-Yang, Chiang, Cheng-Wei
An updated analysis of the two-body $D\to PP, V\!P$ and $VV$ decays within the framework of the topological diagram approach is performed. A global fit to the Cabibbo-favored (CF) modes in the $V\!P$ sector gives many solutions with similarly small l
Externí odkaz:
http://arxiv.org/abs/2401.06316
Autor:
Cheng, Hai-Yang, Liu, Chia-Wei
We study the inclusive decay widths of singly heavy baryons with the improved bag model in which the unwanted center-of-mass motion is removed. Additional insight is gained by comparing the charmed and bottom baryons. We discuss the running of the ba
Externí odkaz:
http://arxiv.org/abs/2305.00665
In this work we study the doubly charmed baryon decays $\Xi_{cc}^{++}\to\Xi_c^{(\prime)+}\pi^+$ within the framework of the non-relativistic quark model (NRQM). Factorizable amplitudes are expressed in terms of transition form factors, while nonfacto
Externí odkaz:
http://arxiv.org/abs/2212.12983
Autor:
Cheng, Hai-Yang
The decay amplitude analyses of $B^\pm\to \pi^+ \pi^-\pi^\pm$ decays in the Dalitz plot performed by LHCb indicate that CP asymmetry for the dominant quasi-two-body decay $B^\pm\to\rho(770)^0\pi^\pm$ was found to be consistent with zero in all three
Externí odkaz:
http://arxiv.org/abs/2211.03965
This paper serves as an update of the previous work entitled ``Heavy-Flavor-Conserving Hadronic Weak Decays of Charmed and Bottom Baryons". We make an improvement on the bag wave functions by removing the center-of-mass motion of the bag. All the bar
Externí odkaz:
http://arxiv.org/abs/2209.00257
Autor:
Cheng, Hai-Yang, Xu, Fanrong
Publikováno v:
Phys. Rev. D 105, 094001 (2022)
Three decades ago, heavy-flavor-conserving (HFC) weak decays of heavy baryons such as $\Xi_Q\to\Lambda_Q\pi$ and $\Omega_Q\to\Xi_Q\pi$ for $Q=c,b$ had been studied within the framework that incorporates both heavy-quark and chiral symmetries. It was
Externí odkaz:
http://arxiv.org/abs/2204.03149
Publikováno v:
Phys. Rev. D 105, 093006 (2022)
We study the quasi-two-body $D\to TP$ decays and the three-body $D$ decays proceeding through intermediate tensor resonances, where $T$ and $P$ denote tensor and pseudoscalar mesons, respectively. We employ $D\to T$ transition form factors based upon
Externí odkaz:
http://arxiv.org/abs/2203.04561
This is a white paper on the STCF charm physics contributing to the Snowmass 2021 proceedings in the RF01 working group.
Comment: White Paper on STCF charm physics; contribution to Snowmass 2021
Comment: White Paper on STCF charm physics; contribution to Snowmass 2021
Externí odkaz:
http://arxiv.org/abs/2203.03211