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He, Jun
Physics letters. B, 02/2016, Letnik: 753, Številka: CJournal Article
Very recently, two hidden-charmed resonances Pc(4380) and Pc(4450) consistent with pentaquark states were observed at the LHCb detector. The two Pc states locate just below the D¯Σc⁎ and D¯⁎Σc thresholds with mass of gaps about 5 and 15 MeV, respectively. Inspired by this fact we perform a dynamical investigation about the D¯Σc⁎(2520) and D¯⁎Σc(2455) interactions which are described by the meson exchanges. A bound state which carries spin-parity JP=3/2− is produced from the D¯Σc⁎(2520) interaction, which is consistent with the Pc(4380) observed at the LHCb detector. From the D⁎Σc(2455) interaction, a bound state with 5/2+ is produced, which can be related to the Pc(4450). The results suggest that the Pc(4380) and Pc(4450) are good candidates of D¯Σc⁎(2520) and D¯⁎Σc(2455) molecular states, respectively.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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