Production of direct single electrons in proton-nucleus collisions at 13 GeV/<em>c</em>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Production of direct single electrons in proton-nucleus collisions at 13 GeV/c

Authors:	A. Maki S. Mikamo M. Ono M. Takasaki A. Yamamoto H. Hirabayashi S. Kurokawa A. Kusumegi S. Higashi F. Kajino Y. Kawashima M. Nakashita S. Ozaki T. Takahashi Y. Teramoto S. Yamamoto S. Naito Y. Sakai M. Mishina

Affiliation:	National Laboratory for High Energy Physics, Tsukuba, Ibaraki, Japan;Physics Department, Osaka City University, Osaka, Japan;Physics Department, University of Kyoto, Kyoto, Japan;Physics Department, Saitama University, Urawa, Saitama, Japan;Physics Department, Tokyo Metropolitan University, Meguro, Tokyo, Japan

Abstract:	Direct production of single electrons in proton-nucleus collisions at 13 GeV/c has been measured. A rising $e π$ ratio with decreasing p_T above the 10^?4 level is observed for low p_T single electrons. The source of the rising $e π$ ratio at low $e π$ ratio at low p_T is discussed in connection with the low mass dielectron continuum below the ? mass region.

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