Exploring a ΣcD¯ state: with focus on Pc(4312)

• Published in: The European physical journal. C, Particles and fields Vol. 79; no. 12
• Main Author: Zhang, Jian-Rong
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2019; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Theoretical Physics; String Theory; Sum rules

Stimulated by the new discovery of P c ( 4312 ) + by LHCb Collaboration, we endeavor to perform the study of P c ( 4312 ) + as a Σ c D ¯ state in the framework of QCD sum rules. Taking into account the results from two sum rules, a conservative mass range 4.07 ∼ 4.97 GeV is presented for the Σ c D ¯...