Observation of $\rho / \omega$ Meson Modification in Nuclear Matter
Nuclear Experiment
2009-09-25 v2
Abstract
We have measured invariant mass spectra of electron-positron pairs in the target rapidity region of 12GeV p+A reactions. We have observed a significant difference in the mass spectra below the meson between p+C and p+Cu interactions. The difference is interpreted as a signature of the modification at normal nuclear-matter density.
Keywords
Cite
@article{arxiv.nucl-ex/0011013,
title = {Observation of $\rho / \omega$ Meson Modification in Nuclear Matter},
author = {K. Ozawa and H. En'yo and H. Funahashi and M. Kitaguchi and M. Ishino and H. Kanda and S. Mihara and T. Miyashita and T. Murakami and R. Muto and M. Naruki and F. Sakuma and H. D. Sato and T. Tabaru and S. Yamada and S. Yokkaichi and Y. Yoshimura and J. Chiba and M. Ieiri and M. Nomachi and O. Sasaki and M. Sekimoto and K. H. Tanaka and H. Hamagaki},
journal= {arXiv preprint arXiv:nucl-ex/0011013},
year = {2009}
}
Comments
8 pages, 3 figures, submitted to Phys. Rev. Letters. all the figures changed to Postscript format, text not changed