Y. Yoshimura

activity

20002025

K^{+} \to π^{+} ν ν ˉ

in the momentum region P < 195 MeV/c

83 citations · 351 across the 9 of their papers we have counts for

collaborators

9 papers

nucl-ex2025

Velocity dependence of the mass modifications of $ρ$ and $ω$ mesons in 12 GeV $p + A$ reactions

Wataru Nakai, Kazuya Aoki, Junsei Chiba +26

This study measured the invariant mass spectra of $ρ$ and $ω$ mesons in the $e^{+} e^{-}$ decay channel for 12 GeV (12.9 GeV/ $c$ ) $p + C$ and $p + Cu$ reactions ($\sqrt{s}…

hep-ex2007★ 41 cited

Search for the Decay $K_{L}^{0} \to π^{0} ν ν ˉ$

E391a Collaboration, J. K. Ahn

We performed a search for the $K_{L}^{0} \to π^{0} ν ν ˉ$ decay at the KEK 12-GeV proton synchrotron. No candidate events were observed. An upper limit on the branching ratio for the de…

hep-ex2006★ 19 cited

New limit on the $K_{L}^{0} \to π^{0} ν ν ˉ$ decay rate

E391a Collaboration, J. K. Ahn

The first dedicated experiment for the rare kaon decay $K_{L}^{0} \to π^{0} ν ν ˉ$ has been performed by the E391a collaboration at the KEK 12-GeV proton synchrotron. A new upper limit…

hep-ex2005★ 33 cited

Upper Limit on the Branching Ratio for the Decay $π^{0} \to ν ν ˉ$

E949 Collaboration, A. V. Artamonov

A sample of kinematically identified $K^{+} \to π^{+} π^{0}$ decays obtained with the E949 detector was used to search for the helicity-suppressed decay $π^{0} \to ν ν ˉ$ resulting in an…

hep-ex2005★ 39 cited

Search for the decay K+ to pi+ gamma gamma in the pi+ momentum region P>213 MeV/c

E949 Collaboration, A. V. Artamonov

We have searched for the K+ to pi+ gamma gamma decay in the kinematic region with pi+ momentum close to the end point. No events were observed, and the 90% confidence-level upper l…

hep-ex2004★ 24 cited

Detection of $π^{+} π^{-}$ atoms with the DIRAC spectrometer at CERN

The DIRAC collaboration

The goal of the DIRAC experiment at CERN is to measure with high precision the lifetime of the $π^{+} π^{-}$ atom ( $A_{2 π}$ ), which is of order $3 \times 1 0^{- 15}$ s, and thus to determin…

Velocity dependence of the mass modifications of ρ and ω mesons in 12 GeV p+A reactions

Search for the Decay KL0​→π0ννˉ

New limit on the KL0​→π0ννˉ decay rate

Upper Limit on the Branching Ratio for the Decay π0→ννˉ