Direct observation of a pair decay of neutral charmed particles produced in <span class="math"><math><mtext>400 </mtext><mtext>GeV</mtext><mtext>c</mtext></math></span> proton interaction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

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Direct observation of a pair decay of neutral charmed particles produced in $400 GeV c$ proton interaction

Authors:	H Fuchi K Hoshino S Kuramata K Niu H Shibuya S Tasaka Y Yanagisawa N Ushida Y Maeda H Kimura

Institution:	Department of Physics, Nagoya University, Chikusa-ku, Nagoya, Japan;Faculty of Education, Aichi University of Education, Kariya, Aichi, Japan;Faculty of Education, Yokohama, National University, Hodogaya-ku, Yokohama, Japan

Abstract:	The second evidence of a pair decay of charmed particles has been obtained in an emulsion chamber exposed to $400 GeV c$ protons. The life time and production cross section of the charmed particles have been evaluated as several times 10^?13 s and several tens of microbarns.

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