Search for the Decay $K^{+}\to {\pi }^{+}\nu \overline{\nu }$

Abstract

An upper limit on the branching ratio for the decay $K^{+}\to {\pi }^{+}\nu \overline{\nu }$ is set at $2.4\times 10^{-9}$ at the 90\% C.L. using pions in the kinematic region $214\mathrm{MeV}/c<P_{\pi }<231\mathrm{MeV}/c$. An upper limit of $5.2\times 10^{-10}$ is found on the branching ratio for decays $K^{+}\to {\pi }^{+}{X}^0$, where $X^0$ is any massless, weakly interacting neutral particle. Limits are also set for cases where $M_{X^0}>0$.

arXiv commentuuencoded, compressed postscript, 9 pages

References in corpus (4)

• Observation of Top Quark Production in Pbar-P Collisions
• Observation of the Top Quark
• Waiting for the Top Quark Mass, K^+ --> π^+ ν\barν, B_s^0-\bar{B}_s^0 Mixing and CP Asymmetries in B-Decays
• The Rare Decays $K^{+}\to {\pi }^{+}\nu \bar{\nu }$\ and $K_L\to {\mu }^{+}{\mu }^{-}$\ Beyond Leading Logarithms

Cited by in corpus (18)

• Weak Decays Beyond Leading Logarithms
• $K_L\to {\pi }^0\nu \bar{\nu }$ Beyond the Standard Model
• Evidence for the Decay K+ --> pi+ nu anti-nu
• $K\to \pi \nu \bar{\nu }$ and High Precision Determinations of the CKM Matrix
• Pursuing interpretations of the HERA large-Q2 data
• Light Sgoldstino: Precision Measurements versus Collider Searches
• Two-Loop Large-$m_t$ Electroweak Corrections to $K\to \pi \nu \bar{\nu }$ for Arbitrary Higgs Boson Mass
• Developments in Rare Kaon Decay Physics
• The Full Range of Predictions for B Physics From Iso-singlet Down Quark Mixing
• Constraints on the Mass and Mixing of the 4th Generation Quark From Direct CP Violation${\epsilon }^{\prime }/\epsilon$ and Rare K Decays
• Effects of the Electroweak Symmetry Breaking Sector in Rare B and K Decays
• Triple Gauge Boson Couplings in Rare B and K Decays
• Large Top Quark Yukawa Coupling and Horizontal Symmetries
• Bayesian estimate of the effect of B^0B^0bar mixing measurements on the CKM matrix elements
• Improvement and generalization of ABCD method with Bayesian inference
• CP Violation in the K-System
• Inferring correlated distributions: boosted top jets
• Rare Kaon Decays