Production of X(3872) at PANDA
Abstract
The recently discovered (3872) has many possible interpretations. We study the production of (3872) with PANDA at GSI for the antiproton-proton collision with two possible interpretations of X(3872). One is as a loosely-bound molecule of -mesons, while another is a 2P charmonium state (2P). Using effective couplings we are able to give numerical predictions for the production near the threshold and the production associated with . The produced (3872) can be identified with its decay . We also study the possible background near the threshold production for . With the designed luminosity per year of PANDA we find that the event number of near the threshold is at the order of , where the large uncertainty comes from the total decay width of X(3872). Our study shows that at the threshold more than about 60% events come from the decay of X(3872) and two interpretations are distinguishable from the line-shape of the production. With our results we except that the PANDA experiments will shed light on the property of X(3872).
Keywords
Cite
@article{arxiv.0802.2982,
title = {Production of X(3872) at PANDA},
author = {G. Y. Chen and J. P. Ma},
journal= {arXiv preprint arXiv:0802.2982},
year = {2008}
}
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