Analysis of P <sub> cs </sub>(4338) and related pentaquark molecular states via QCD sum rules*
Xiu-Wu Wang, Zhi Gang Wang
Abstract
Abstract In this study, we tentatively identify as the molecular state and distinguish the isospins of current operators to explore in detail the , , , , , , , and molecular states without strange, with strange, and with double strange in the framework of QCD sum rules. The present exploration favors identifying ( ) as the ( ) molecular state with the spin-parity ( ) and isospin , and the observation of their cousins with the isospin in the invariant mass distributions would decipher their inner structures.
Topics & Concepts
PhysicsPentaquarkQCD sum rulesQuantum chromodynamicsParticle physicsNuclear physicsHadronQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research