Abstract
A nucleon resonance with spin-parity and mass about 2.1 GeV is essential to reproducing the photoproduction cross sections for released by the LEPS and CLAS collaborations. It can be explained as the third nucleon resonance state in the constituent quark model so that there is no position to settle the which is listed by the Particle Data Group as the third nucleon resonance. An interpretation is proposed that the is from the interaction of a decuplet baryon and an octet meson , which is favored by the calculation of binding energy and decay pattern in a Bethe-Salpeter approach.
- Received 1 October 2014
- Revised 2 January 2015
DOI:https://doi.org/10.1103/PhysRevC.91.018201
©2015 American Physical Society