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

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.

10 pages, 4 figures, submitted to Physics Letters B

References in corpus (7)

• Reanalysis of the decay K_L -> pi0 e+ e-
• Observation of the Decay K^+ --> pi^+ gamma gamma
• Measurement of the Decay KL -> Pi0 Gamma Gamma
• K_L to π^+ π^- e^+ e^-
• K_L -> pi0 gamma e+ e- and its relation to CP and chiral tests
• Final State Interactions and CP Violation in $K_L\to {\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$
• Observation of the decay mode K_L -> pi^+ pi^- e^+ e^-

Cited by in corpus (5)

• Anatomy of kaon decays and prospects for lepton flavour universality violation
• Developments in Rare Kaon Decay Physics
• Beyond the Standard Model prospects for kaon physics at future experiments
• First Observation of the decay KL -> pi0 e e gamma
• Measurement of the Decay KL -> pi0 e+ e- gamma