Abstract
A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the qqqcc configurations, where q is a light quark and c the charmed quark. In the calculation, several open channels are explicitly included such as J/ψ+N, ηc+N, Λc+D, etc. To distinguish genuine resonances and estimate their width, we employ the Gaussian expansion method supplemented by the real scaling method (stabilization). No resonance is found at the energies of the Pc(4380) and Pc(4450) pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a J=1/2- state and another one at 4920 MeV with a J=3/2- state which have a compact structure.
| Original language | English |
|---|---|
| Article number | 045208 |
| Journal | Physical Review C |
| Volume | 98 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Oct 22 2018 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Cite this
Quark model estimate of hidden-charm pentaquark resonances. / Hiyama, Emiko; Hosaka, Atsushi; Oka, Makoto; Richard, Jean Marc.
In: Physical Review C, Vol. 98, No. 4, 045208, 22.10.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quark model estimate of hidden-charm pentaquark resonances
AU - Hiyama, Emiko
AU - Hosaka, Atsushi
AU - Oka, Makoto
AU - Richard, Jean Marc
PY - 2018/10/22
Y1 - 2018/10/22
N2 - A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the qqqcc configurations, where q is a light quark and c the charmed quark. In the calculation, several open channels are explicitly included such as J/ψ+N, ηc+N, Λc+D, etc. To distinguish genuine resonances and estimate their width, we employ the Gaussian expansion method supplemented by the real scaling method (stabilization). No resonance is found at the energies of the Pc(4380) and Pc(4450) pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a J=1/2- state and another one at 4920 MeV with a J=3/2- state which have a compact structure.
AB - A quark model, which reproduces the ground-state mesons and baryons, i.e., the threshold energies, is applied to the qqqcc configurations, where q is a light quark and c the charmed quark. In the calculation, several open channels are explicitly included such as J/ψ+N, ηc+N, Λc+D, etc. To distinguish genuine resonances and estimate their width, we employ the Gaussian expansion method supplemented by the real scaling method (stabilization). No resonance is found at the energies of the Pc(4380) and Pc(4450) pentaquarks. On the other hand, there is a sharp resonant state at 4690 MeV with a J=1/2- state and another one at 4920 MeV with a J=3/2- state which have a compact structure.
UR - http://www.scopus.com/inward/record.url?scp=85055861427&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85055861427&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.98.045208
DO - 10.1103/PhysRevC.98.045208
M3 - Article
AN - SCOPUS:85055861427
VL - 98
JO - Physical Review C
JF - Physical Review C
SN - 2469-9985
IS - 4
M1 - 045208
ER -