Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Feng-Kun Guo"'
Publikováno v:
Physics Letters B, Vol 853, Iss , Pp 138646- (2024)
The primary objective of this study is to investigate hadronic molecules of K⁎K¯1(1270) using a one-boson-exchange model, which incorporates exchanges of vector and pseudoscalar mesons in the t-channel, as well as the pion exchange in the u-channe
Externí odkaz:
https://doaj.org/article/8025486e46664ee89d0a010ac9fe9ee4
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-14 (2023)
Abstract It was demonstrated in a series of papers employing unitarized chiral perturbation theory that the phenomenology of the scalar open-charm state, the $$D_0^*(2300)$$ D 0 ∗ ( 2300 ) , can be understood as the interplay of two poles, correspo
Externí odkaz:
https://doaj.org/article/7500f337aafb435fbb5cc719cda7203b
Publikováno v:
Physics Letters B, Vol 846, Iss , Pp 138264- (2023)
Starting from the SU(3) limit, we consider the nature of the dynamically generated resonances Λ(1380), Λ(1405) and Λ(1680) as the pion and kaon masses are tuned to their physical values. We show that the accidental symmetry of the two octets due t
Externí odkaz:
https://doaj.org/article/92a187f321a245f2aa178090525df7e5
Publikováno v:
Physics Letters B, Vol 843, Iss , Pp 137987- (2023)
It has been generally expected that the X(3872) has a spin-2 partner, X2, with quantum numbers JPC=2++. In the hadronic molecular model, its mass was predicted to be below the D⁎D¯⁎ threshold, and the new structure reported in the γψ(2S) invar
Externí odkaz:
https://doaj.org/article/351ace2af80d41f28cdb99a3ceeffd09
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-40 (2021)
Abstract In the past, the axion-nucleon coupling has been calculated in the framework of SU(2) heavy baryon chiral perturbation theory up to third order in the chiral power counting. Here, we extend these earlier studies to the case of heavy baryon c
Externí odkaz:
https://doaj.org/article/30cd22f8742a4241ab431a005d1b243b
Autor:
Meng-Lin Du, Vadim Baru, Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner, José A. Oller, Qian Wang
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-50 (2021)
Abstract The nature of the three narrow hidden-charm pentaquark P c states, i.e., P c (4312), P c (4440) and P c (4457), is under intense discussion since their discovery from the updated analysis of the process Λ b 0 → J / ψ pK − $$ {\Lambda}_
Externí odkaz:
https://doaj.org/article/c0009a956aa94883906241c2ea7fdb63
Autor:
Vadim Baru, Xiang-Kun Dong, Meng-Lin Du, Arseniy Filin, Feng-Kun Guo, Christoph Hanhart, Alexey Nefediev, Juan Nieves, Qian Wang
Publikováno v:
Physics Letters B, Vol 833, Iss , Pp 137290- (2022)
We discuss some general features of the effective range expansion, the content of its parameters with respect to the nature of the pertinent near-threshold states and the necessary modifications in the presence of coupled channels, isospin violations
Externí odkaz:
https://doaj.org/article/ad4ae23edaa94875bf18f4d03e067c03
Publikováno v:
Universe, Vol 9, Iss 2, p 109 (2023)
In this work, we interpret the newly observed η1(1855) resonance with exotic JPC=1−+ quantum numbers in the I=0 sector, reported by the BESIII Collaboration, as a dynamically generated state from the interaction between the lightest pseudoscalar m
Externí odkaz:
https://doaj.org/article/e3d1d96591194617b3eccb2061132913
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-55 (2021)
Abstract We present a comprehensive analysis of form factors for two light pseudoscalar mesons induced by scalar, vector, and tensor quark operators. The theoretical framework is based on a combination of unitarized chiral perturbation theory and dis
Externí odkaz:
https://doaj.org/article/884d0bac18fa40c7896c232426967aed
Autor:
Meng-Lin Du, Vadim Baru, Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner, Alexey Nefediev, Igor Strakovsky
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-6 (2020)
Abstract The photoproduction of the $$J/\psi $$ J / ψ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the origin of the proton mass, based on the QCD multipole ex
Externí odkaz:
https://doaj.org/article/e184f425bc294c21b305ab5b7baeb6ba