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arXiv · hep-ex/9907007

Experimental search for the decay mode K_L -> pi^0 gamma e^+ e^-

K. Murakami·Y. Hemmi·H. Kurashige·Y. Matono·T. Nomura·H. Sakamoto·N. Sasao·M. Suehiro·Y. Takeuchi·Y. Fukushima·Y. Ikegami·T. T. Nakamura·T. Taniguchi·M. Asai
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Abstract

We report on results of a search for the decay mode K_L -> pi^0 gamma e^+ e^- conducted by the E162 experiment at KEK. We observed no events and set a 90% confidence level upper limit of Br(K_L -> pi^0 gamma e^+ e^-)< 7.1x10^{-7} for its branching ratio. This is the first published experimental result on this decay mode.

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K. Murakami, Y. Hemmi, H. Kurashige, Y. Matono, T. Nomura, H. Sakamoto, N. Sasao, M. Suehiro, Y. Takeuchi, Y. Fukushima, Y. Ikegami, T. T. Nakamura, T. Taniguchi, M. Asai. 1999-07-08. Experimental search for the decay mode K_L -> pi^0 gamma e^+ e^-. https://doi.org/10.1016/s0370-2693(99)00939-9

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