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Pentaquark states with the $$QQQq\bar{q}$$ Q Q Q q q ¯ configuration in a simple model
- Source :
- The European Physical Journal C. 79
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- We discuss the mass splittings for the $S$-wave triply heavy pentaquark states with the $QQQq\bar{q}$ $(Q=b,c;q=u,d,s)$ configuration which is a mirror structure of $Q\bar{Q}qqq$. The latter configuration is related with the nature of $P_c(4380)$ observed by the LHCb Collaboration. The considered pentaquark masses are roughly estimated with a simple method. One finds that such states are probably not narrow even if they do exist. This leaves room for molecule interpretation for a state around the low-lying threshold of a doubly heavy baryon and a heavy-light meson, e.g. $\Xi_{cc}D$, if it were observed. As a by product, we conjecture that upper limits for the masses of the conventional triply heavy baryons can be determined by the masses of the conventional doubly heavy baryons.
- Subjects :
- Physics
Particle physics
Conjecture
Physics and Astronomy (miscellaneous)
Meson
010308 nuclear & particles physics
High Energy Physics::Phenomenology
State (functional analysis)
01 natural sciences
Pentaquark
Interpretation (model theory)
Baryon
Simple (abstract algebra)
0103 physical sciences
High Energy Physics::Experiment
Nuclear Experiment
010306 general physics
Engineering (miscellaneous)
Bar (unit)
Subjects
Details
- ISSN :
- 14346052 and 14346044
- Volume :
- 79
- Database :
- OpenAIRE
- Journal :
- The European Physical Journal C
- Accession number :
- edsair.doi...........028d188cbfc198e9a2e58430c26f2436