Evidence of Pentaquark States from K+ N Scattering Data?
Nuclear Theory
2009-11-10 v1 High Energy Physics - Phenomenology
Abstract
Motivated by the recent experimental evidence of the exotic B = S = +1 baryonic state Theta(1540), we examine the older existing data on K+ N elastic scattering through the time delay method. We find positive peaks in time delay around 1.545 and 1.6 GeV in the D03 and P01 partial waves of K+ N scattering respectively, in agreement with experiments. We also find an indication of the J=3/2 Theta* spin-orbit partner to the Theta, in the P03 partial wave at 1.6 GeV. We discuss the pros and contras of these findings in support of the interpretation of these peaks as possible exotics.
Keywords
Cite
@article{arxiv.nucl-th/0405008,
title = {Evidence of Pentaquark States from K+ N Scattering Data?},
author = {N. G. Kelkar and M. Nowakowski and K. P. Khemchandani},
journal= {arXiv preprint arXiv:nucl-th/0405008},
year = {2009}
}
Comments
10 pages, 4 figures