Possible Interpretations of $D_{sJ}^+(2632)$ If It Really Exists
High Energy Physics - Phenomenology
2008-11-26 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Theory
Abstract
We analyze various possible interpretations of the narrow state observed by SELEX Collaboration recently, which lies above threshold and has abnormal decay pattern. These interpretations include: (1) several versions of tetraquarks; (2) conventional meson such as the first radial excitation of with abnormally large SU(3) symmetry breaking; (3) conventional meson with abnormally large coupling; (4) heavy hybrid meson. We discuss the physical implications of each interpretation. For example, if the existence of is confirmed as the first radial excitation of by other experiments, it will be helpful to look for (1) its SU(3) flavor partners ; (2) its B-meson analogues ; (3) S-wave two pion decay modes.
Cite
@article{arxiv.hep-ph/0408234,
title = {Possible Interpretations of $D_{sJ}^+(2632)$ If It Really Exists},
author = {Yuan-Ben Dai and Chun Liu and Y. -R. Liu and Shi-Lin Zhu},
journal= {arXiv preprint arXiv:hep-ph/0408234},
year = {2008}
}