Is there a pion-Lambda-nucleon bound state?
High Energy Physics - Phenomenology
2008-12-18 v3 Nuclear Experiment
Nuclear Theory
Abstract
We have searched for bound states in the pion-Lambda-nucleon system by solving the nonrelativistic Faddeev equations, as well as a relativistic version, with input separable pion-nucleon, pion-Lambda, and Lambda-nucleon interactions. A bound-state solution, driven by the Delta(1232) and Sigma(1385) p-wave meson-baryon resonances, was found in the channel (I,JP)=(3/2,2+), provided the Lambda lab momentum at which the Lambda-nucleon S=1,L=0,J=1 phase shift becomes negative is larger than about 750-800 MeV/c. Other strange and charmed pion-baryon-baryon systems that might have bound states of a similar nature are listed.
Keywords
Cite
@article{arxiv.0805.2334,
title = {Is there a pion-Lambda-nucleon bound state?},
author = {Avraham Gal and Humberto Garcilazo},
journal= {arXiv preprint arXiv:0805.2334},
year = {2008}
}
Comments
version matching PRD publication, typos and references corrected