Spectrum of low-lying $s^{3}Q\bar{Q}$ configurations with negative parity
High Energy Physics - Phenomenology
2015-06-11 v2 Nuclear Theory
Abstract
Spectrum of low-lying five-quark configurations with strangeness quantum number and negative parity is studied in three kinds of constituent quark models, namely the one gluon exchange, Goldstone Boson exchange, and instanton-induced hyperfine interaction models, respectively. Our numerical results show that the lowest energy states in all the three employed models are lying at 1800 MeV, about 200 MeV lower than predictions of various quenched three-quark models. In addition, it is very interesting that the state with the lowest energy in one gluon exchange model is with spin 3/2, but 1/2 in the other two models.
Keywords
Cite
@article{arxiv.1208.1742,
title = {Spectrum of low-lying $s^{3}Q\bar{Q}$ configurations with negative parity},
author = {S. G. Yuan and C. S. An and K. W. Wei and B. S. Zou and H. S. Xu},
journal= {arXiv preprint arXiv:1208.1742},
year = {2015}
}
Comments
Version published in Phys. Rev. C