出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We search for the standard lattice resonance signature of attraction between the resonance constituents
which leads to a bound state at quark masses near the physical regime. We study a
variety of spin- 1
2 interpolators and for the first time, interpolators providing access to spin- 3
2 pentaquark
states. In looking for evidence of binding, a precise determination of the mass splitting
between the pentaquark state and its lowest-lying decay channel is performed by constructing the
effective mass splitting from the various two-point correlation functions. While the binding of the
pentaquark state is not a requirement, the observation of such binding would provide compelling
evidence for the existence of the Q+ pentaquark resonance. Evidence of binding is observed in
the isoscalar spin- 3
2 positive parity channel, making it an interesting state for further research.
