New measurement of the K+ => pi+,nu,nubar branching ratio

Abstract

Three events for the decay K+ => pi+,nu,nubar have been observed in the pion momentum region below the K+ => pi+,pi0 peak, 140 < P_pi < 199 MeV/c, with an estimated background of 0.93+-0.17(stat.)+0.32-0.24(syst.) events. Combining this observation with previously reported results yields a branching ratio of B(K+ => pi+,nu,nubar) = (1.73+1.15-1.05)e-10 consistent with the standard model prediction.

To be published in Physical Review Letters

References in corpus (7)

• Improved estimates of rare K decay matrix-elements from Kl3 decays
• Improved Measurement of the K+ to pi+ nu nubar Branching Ratio
• Electroweak Corrections to the Charm Quark Contribution to K+ -> pi+ nu nu-bar
• Waiting for Precise Measurements of K^+->pi^+ nu nu and K_L->pi^0 nu nu
• Further search for the decay $K^{+}\to {\pi }^{+}\nu \bar{\nu }$ in the momentum region P < 195 MeV/c
• Search for the decay $K^{+}\to {\pi }^{+}\nu \bar{\nu }$ in the momentum region $P_{\pi }<195MeV/c$
• Photon sandwich detectors with WLS fiber readout

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