Zobrazeno 1 - 10
of 279
pro vyhledávání: '"CHENG Jian-bo"'
The BESIII Collaboration recently observed a new charmonium-like vector state $Y(3872)$ in $e^+e^-\rightarrow D\bar{D}$, which should be the first P-wave $D\bar{D}^*/\bar{D}D^*$ molecular resonance. The experimental and theoretical identification of
Externí odkaz:
http://arxiv.org/abs/2403.01727
Publikováno v:
Phys. Rev. D 108 (2023) 11, 114014
A partial width formula is proposed using the analytical extension of the wave function in momentum space. The distinction of the Riemann sheets is explained from the perspective of the Schrodinger equation. The analytical form in coordinate space an
Externí odkaz:
http://arxiv.org/abs/2305.19073
We investigate the $Z_b$, $Z_c$ and $Z_{cs}$ states within the chiral effective field theory framework and the $S$-wave single channel molecule picture. With the complex scaling method, we accurately solve the Schr\"odinger equation in momentum space
Externí odkaz:
http://arxiv.org/abs/2305.15787
We investigate the double-charm and hidden-charm hexaquarks as molecules in the framework of the one-boson-exchange potential model. The multichannel coupling and $S-D$ wave mixing are taken into account carefully. We adopt the complex scaling method
Externí odkaz:
http://arxiv.org/abs/2211.05050
We use the leading order (LO) contact interactions and OPE potentials to investigate the newly observed double-charm state $T_{cc}^+$. The $DD\pi$ three-body effect is important in this system since the intermediate states can go on shell. We keep th
Externí odkaz:
http://arxiv.org/abs/2205.14628
The LHCb Collaboration discovered a double-charm tetraquark $T_{cc}^{+}$ with a very small width. We investigate the $T_{cc}^{+}$ as a $DD^{*}$ molecule with $J^{P}=1^{+}$ in the framework of the one-boson-exchange potential model. The isospin breaki
Externí odkaz:
http://arxiv.org/abs/2205.13354
Publikováno v:
Phys.Rev.D 104,116030(2021)
We calculate the complete $T$ matrices of the elastic nucleon-nucleon scattering up to third order in SU(3) heavy baryon chiral perturbation theory. The phase shifts with orbital angular momentum $L\geq 2$ and the mixing angles with $J\geq 2$ are eva
Externí odkaz:
http://arxiv.org/abs/2109.11348
Publikováno v:
Chin. Phys. C 45, 043102 (2021)
We calculate the masses of the $QQ\bar{q}\bar{q}$ ($Q=c,b$; $q=u,d,s$) tetraquark states with the aid of heavy diquark-antiquark symmetry (HDAS) and the chromomagnetic interaction (CMI) model. The masses of the highest-spin ($J=2$) tetraquarks that h
Externí odkaz:
http://arxiv.org/abs/2008.00737
Publikováno v:
Phys. Rev. D 101, 114017 (2020)
We have systematically investigated the mass spectrum and rearrangement decay properties of the exotic tetraquark states with four different flavors using a color-magnetic interaction model. Their masses are estimated by assuming that the $X(4140)$ i
Externí odkaz:
http://arxiv.org/abs/2001.05287
Autor:
Cheng, Jian-Bo, Liu, Yan-Rui
Publikováno v:
Phys. Rev. D 100, 054002 (2019)
In a chromomagnetic model, we analyse the properties of the newly observed $P_c(4457)^+$, $P_c(4440)^+$, and $P_c(4312)^+$ states. We estimate the masses of the $(uud)_{8_c}(c\bar{c})_{8_c}$ and $(uds)_{8_c}(c\bar{c})_{8_c}$ pentaquark states by cons
Externí odkaz:
http://arxiv.org/abs/1905.08605