Kbar Dbar N molecular state as a “uudscbar pentaquark" in a three-body calculation

ORAL

Abstract

Kbar, anti-charm meson Dbar, and nucleon N in total isospin 1/2. This state behaves like an explicit pentaquark state because its minimal quark configuration is u u d s cbar. The Kbar Dbar N system is bound by the three kinds of attraction: the strong Kbar N attraction which generates Lambda(1405), Kbar Dbar attraction which generates Ds0(2317)^-, and weak Dbar N attraction.  In this contribution, by employing a simple three-body potential model, we show that the system can be bound and discuss properties of the Kbar Dbar N bound state.

*This work was partly supported by JSPS Early-Career Scientists Grant Number 18K13545.

Presenters

  • Junko Yamagata-Sekihara

    • Kyoto Sangyo University

Authors

  • Junko Yamagata-Sekihara

    • Kyoto Sangyo University
  • Takayasu Sekihara

    • JAEA
    • ASRC, JAEA