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Author  |
Yang, Z.Y.; Song, J.; Liang, W.H.; Oset, E. |
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Title |
Pc(4440) and Pc(4457) decay into (D)over-barΣc and (D)over-barΛc and the spin of the Pc states |
Type |
Journal Article |
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Year |
2025 |
Publication |
European Physical Journal C |
Abbreviated Journal |
Eur. Phys. J. C |
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Volume |
85 |
Issue |
9 |
Pages |
954 - 12pp |
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Abstract |
We address the issue of the width and spin assignment of the P-c(4440) and P-c(4457) pentaquark states. We calculate the partial decays widths of the particles into J/psi N, (D) over bar Sigma(c) and (D) over bar Lambda(c) with the first one obtained within a unitary approach with the coupled channels of J/psi N and (D) over bar*Sigma(c) with the interaction driven by vector meson exchange, and the last two by means of triangle diagrams involving pion exchange. The widths obtained depend much on the spin of the particles and we study the possible scenarios for spin assignment, favoring the 1/2(-), 3/2(-) order, although the large experimental errors do not rule out the opposite scenario. We predict values for decays in different channels and show that their precise determination would allow to decide on the spin of the states. |
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Address |
[Yang, Zi-Ying; Song, Jing] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China, Email: Song-Jing@buaa.edu.cn; |
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Publisher |
Springer |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Edition |
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ISSN |
1434-6044 |
ISBN |
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Notes |
WOS:001568455500002 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6834 |
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