Doubly charmed pentaquarks
Doubly charmed pentaquarks
复制标题
双魅五夸克
DOI:
10.1103/physrevd.101.074030
复制
发表时间:
2020-03
影响因子:
5
通讯作者:
Segovia Jorge
中科院分区:
文献类型:
--
作者:
Yang Gang;Ping Jialun;Segovia Jorge
The LHCb collaboration, using its full data set from runs 1 and 2, announced in 2019 a surprising update of the hidden-charm pentaquark states Pc(4380)+ and Pc(4450)+, observed in 2015. A new state, Pc(4312)+, was clearly seen at lower energies; furthermore, the original Pc(4450) resonance was resolved into two individual states, named the Pc(4440)+ and the Pc(4457)+. Motivated by the fact that these new hidden-charm pentaquark states were successfully predicted by our chiral quark model, we extend herein such study to the doubly charmed sector. The analyzed total spin and parity quantum numbers are JP=12-, 32- and 52-, in the I=12 and 32 isospin channels. We find several possible narrow baryon-meson resonances (theoretical masses in parenthesis): IJP=1212- ΣcD(4356), 1232- Σc*D(4449), 3212- ΣcD(4431), 3212- ΣcD(4446), 3232- ΣcD*(4514) and 3252- Ξcc*ρ(4461) whose widths are 4.8, 8.0, 2.6, 2.2, 4.0 and 3.0 MeV, respectively. Moreover, one shallow bound state is found, too, with quantum numbers IJP=1232- Ξcc*π(3757). These doubly charmed pentaquark states are expected to be identified in future experiments.
登录
查看更多内容
影响因子:
5
作者:
Xu Cao;J. Dai
通讯作者:
Xu Cao;J. Dai
影响因子:
5
作者:
J. Vijande;J. Vijande;A. Valcarce;N. Barnea;N. Barnea
通讯作者:
J. Vijande;J. Vijande;A. Valcarce;N. Barnea;N. Barnea
影响因子:
5
作者:
An Hong-Tao;Zhou Qin-Song;Liu Zhan-Wei;Liu Yan-Rui;Liu Xiang
通讯作者:
Liu Xiang
影响因子:
5
作者:
Yang Gang;Ping Jialun;Segovia Jorge
通讯作者:
Segovia Jorge
影响因子:
4.4
作者:
Zhi-Hui Guo;J.A.Oller
通讯作者:
J.A.Oller