Search for the Decay K+ -> pi+ pi0 nu nubar

Abstract

The first search for the decay K^+ -> pi^+ pi^0 nu nubar has been performed with the E787 detector at BNL. Based on zero events observed in the kinematical search region defined by 90 MeV/c < P_{pi^+} < 188 MeV/c and 135 MeV < E_{pi^0} < 180 MeV, an upper limit B(K^+ -> pi^+ pi^0 nu nubar) < 4.3 x 10^{-5} at 90% confidence level is established.

10 pages, Latex, 5 figures, to be submitted to Phys. Rev. D

References in corpus (7)

• The Rare Decays $K^{+}\to {\pi }^{+}\nu \bar{\nu }$\ and $K_L\to {\mu }^{+}{\mu }^{-}$\ Beyond Leading Logarithms
• Evidence for the Decay K+ --> pi+ nu anti-nu
• Further Search for the Decay K^+ --> pi^+ nu nubar
• Study of Long Distance Contributions to $K\to n\pi \nu \bar{\nu }$
• CP Conserving and Violating Contributions to $K_L\to {\pi }^{+}{\pi }^{-}\nu \bar{\nu }$
• The decays $K\to \pi \pi \nu \overline{\nu }$ within the standard model
• K_{L,S} \to ππν\barν Decays Within and Beyond the Standard Model

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