D¯Σc⁎ and D¯⁎Σc interactions and the LHCb hidden-charmed pentaquarks
By Jun He. 2015
223 citations recorded by the source corpus.
Abstract Very recently, two hidden-charmed resonances P c ( 4380 ) and P c ( 4450 ) consistent with pentaquark states were observed at the LHCb detector. The two P c states locate just below the D ¯ Σ c ⁎ and D ¯ ⁎ Σ c thresholds with mass of gaps about 5 and 15 MeV, respectively. Inspired by this fact we perform a dynamical investigation about the D ¯ Σ c ⁎ ( 2520 ) and D ¯ ⁎ Σ c ( 2455 ) interactions which are described by the meson exchanges. A bound state which carries spin-parity J P = 3 / 2 − is produced from the D ¯ Σ c ⁎ ( 2520 ) interaction, which is consistent with the P c ( 4380 ) observed at the LHCb detector. From the D ⁎ Σ c ( 2455 ) interaction, a bound state with 5 / 2 + is produced, which can be related to the P c ( 4450 ) . The results suggest that the P c ( 4380 ) and P c ( 4450 ) are good candidates of D ¯ Σ c ⁎ ( 2520 ) and D ¯ ⁎ Σ c ( 2455 ) molecular states, respectively.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/f978183f4f4084ae246d4939510b5ede984836ef
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
Citations in the corpus
- Hadronic molecules (2017, background): “…reported preferred quantum numbers, suggesting different interpretations of the two Pc states, such as Σc(2455)D̄∗, Σc(2520)D̄ or Σc(2520)D̄∗ hadronic molecules (Chen et al., 2015b, 2016b, 2015d; He, 2016; Karliner and Rosner, 2015a; Ortega et al., 2017; Roca et al., 2015b; Shimizu et al., 2016).”