Baryons in the unquenched quark model

Abstract

Abstract. In this contribution, we present the unquenched quark model as an extension of the constituent quark model that includes the effects of sea quarks via a 3 P 0 quark-antiquark paircreation mechanism. Particular attention is paid to the spin and flavor content of the proton, magnetic moments and β decays of octet baryons.

The exotic hadron states in quenched and unquenched quark models

“…The quark model also needs to move forward to unquenched quark model by introducing multi-quark components, and even hybrid components to the hadron states. In recent years, the unquenched quark model has been developed as an extension of the constituent quark model that includes the effects of sea quarks via a 3 P 0 quark-antiquark pair creation mechanism, and it has been employed to the study of baryons [32], mesons [33], and some exotic states [34,35].…”