Details

Autor(en) / Beteiligte

• Lin, Yong-Hui
• Zou, Bing-Song

Titel

Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures

Ist Teil von

• Physical review. D, 2019-09, Vol.100 (5), p.1, Article 056005

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We investigate the observed pentaquark candidates Pc(4312), Pc(4440), and Pc(4457) from the latest LHCb measurement, as well as four possible spin partners in the D¯(*)Σc* system predicted from the heavy quark spin symmetry with the hadronic molecule scenarios. Similar to the previous calculation on Pc(4380) and Pc(4450), the partial widths of all the allowed decay channels for these Pc states are estimated with the effective Lagrangian method. The cutoff dependence of our numerical results is also presented. Comparing with the experimental widths, our results show that Pc(4312), Pc(4440), and Pc(4457) can be described well with the spin-parity-1/2−−D¯Σc, 1/2−−D¯*Σc, and 3/2−−D¯*Σc molecule pictures, respectively.