核物质中 $\rho / \omega$ 介子修正的观测
核实验
2009-09-25 v2
摘要
我们在 12 GeV p+A 反应的靶快度区测量了电子-正电子对的不变质量谱。我们观察到 p+C 和 p+Cu 相互作用中 介子以下的质量谱存在显著差异。这种差异被解释为在正常核物质密度下 修正的特征。
引用
@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}
}
备注
8 pages, 3 figures, submitted to Phys. Rev. Letters. all the figures changed to Postscript format, text not changed