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pro vyhledávání: '"Tseng, B."'
The schema-guided paradigm overcomes scalability issues inherent in building task-oriented dialogue (TOD) agents with static ontologies. Instead of operating on dialogue context alone, agents have access to hierarchical schemas containing task-releva
Externí odkaz:
http://arxiv.org/abs/2303.09905
Autor:
Cheng, Hai-Yang, Tseng, B.
Publikováno v:
Chin.J.Phys. 39 (2001) 28-40
For hadronic two-body decays of charmed mesons involving $\eta$ or $\eta'$, resonance-induced final-state interactions (FSI) that mimic the W-exchange or the W-annihilation topology can play an essential role. In particular, the decays $D^0\to\bar K^
Externí odkaz:
http://arxiv.org/abs/hep-ph/0006081
Autor:
Tseng, B., Chiang, Cheng-Wei
Two-body charmless nonleptonic decays of $B_u \to V V$ are studied within the generalized factorization approach using a recent calculation of the effective Wilson coefficients $c^{eff}_i$, which are not only renormalization-scale and -scheme indepen
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905338
Publikováno v:
Phys. Rev. D 60, 094014 (1999)
Two-body charmless nonleptonic decays of B_u and B_d mesons are studied within the framework of generalized factorization in which the effective Wilson coefficients $c^{eff}_i$ are renormalization-scale and -scheme independent while factorization is
Externí odkaz:
http://arxiv.org/abs/hep-ph/9903453
Autor:
Tseng, B.
Using the next-to-leading order QCD-corrected effective Hamiltonian, charmless exclusive nonleptonic decays of the $B_s$ meson into $\eta$ or $\eta'$ are calculated within the generalized factorization approach. Nonfactorizable contributions are incl
Externí odkaz:
http://arxiv.org/abs/hep-ph/9812452
Publikováno v:
Phys. Rev. D 59, 074003 (1999)
Two-body charmless nonleptonic decays of the B_s meson are studied within the framework of generalized factorization in which factorization is applied to the tree level matrix elements while the effective Wilson coefficients are $\mu$ and renormaliza
Externí odkaz:
http://arxiv.org/abs/hep-ph/9809364
Autor:
Cheng, Hai-Yang, Tseng, B.
Publikováno v:
Phys.Rev. D59 (1999) 014034
Hadronic decay modes $D^0\to(\bar K^0, \bar K^{*0})\eta,\eta'$ and $(D^+,D_s^+)\to(\pi^+,\rho^+)\eta,\eta'$ are studied in the generalized factorization approach. Form factors for $(D,D_s^+)\to(\eta,\eta')$ transitions are carefully evaluated by taki
Externí odkaz:
http://arxiv.org/abs/hep-ph/9806209
Autor:
Cheng, Hai-Yang, Tseng, B.
Publikováno v:
Phys. Rev. D 58, 094005 (1998)
Nonfactorizable effects in hadronic charmless B -> PP, VP decays can be parametrized in terms of the effective number of colors N_c in the effective parameters $a_i^{eff}$ that are linear combinations of Wilson coefficients. It is shown that N_c(V+A)
Externí odkaz:
http://arxiv.org/abs/hep-ph/9803457
Autor:
Tseng, B., Li, Hsiang-nan
For the first time, a solution to the $a_2/a_1$ sign problem in heavy meson decay based on PQCD factorization theorems. The point is to include QCD evolution effort characteristic scales involved in decay processes.
Comment: 5 pages. talk given
Comment: 5 pages. talk given
Externí odkaz:
http://arxiv.org/abs/hep-ph/9712527
Autor:
Cheng, Hai-Yang, Tseng, B.
Nonfactorizable effects in charmless $B\to PP, VP$ decays can be lumped into the effective parameters a_i that are linear combinations of Wilson coefficients, or equivalently absorbed into the effective number of colors N_c. Naive factorization with
Externí odkaz:
http://arxiv.org/abs/hep-ph/9708211