Disentangling the hadronic molecule nature of the $P_c(4380)$ pentaquark-like structure - INSPIRE

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Disentangling the hadronic molecule nature of the $P_c(4380)$ pentaquark-like structure

Chao-Wei Shen
(
- Beijing, Inst. Theor. Phys.
)
,
Feng-Kun Guo
(
- Beijing, Inst. Theor. Phys.
)
,
Ju-Jun Xie
(
)
,
Bing-Song Zou
(
- Beijing, Inst. Theor. Phys.
)

Mar 15, 2016

13 pages

Published in:

Nucl.Phys.A 954 (2016) 393-405

Published: Oct, 2016

e-Print:

1603.04672 [hep-ph]

DOI:

10.1016/j.nuclphysa.2016.04.034

View in:

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Abstract: (Elsevier)

We demonstrate that the relative ratio of the decays of hidden charm pentaquark-like structure Pc+(4380) to D¯⁎Λc+ and J/ψp is very different for Pc+ being D¯Σc⁎(2520) or D¯⁎Σc(2455) molecule states. While the partial width of the D¯Σc⁎(2520) molecule to the D¯⁎Λc+ is much larger, by one order of magnitude, than that to the J/ψp , the D¯⁎Σc(2455) molecule shows a different pattern. Our analysis shows that the D¯Σc⁎ bound state ansatz is more reasonable than the D¯⁎Σc one to explain the broad Pc(4380) structure. We suggest to search for the Pc(4380) in the D¯⁎Λc+ system, which can be used to disentangle the nature of the Pc+(4380) structure.

Note:

accepted version for Nucl. Phys. A

Pentaquark states with hidden charm
structure
branching ratio
charmonium
decay
pentaquark
bound state
charm

References(53)

Figures(3)

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