C. J. Yoon

Search for the Θ+ pentaquark via the π(-)p→K(-)X reaction at 1.92 GeV/c.

The Θ(+) pentaquark baryon was searched for via the π(-)p→K(-)X reaction with a missing mass resolution of 1.4 MeV/c(2) (FWHM) at the Japan Proton Accelerator Research Complex (J-PARC). π(-) meson beams were incident on the liquid hydrogen target with a beam momentum of 1.92 GeV/c. No peak structure corresponding to the Θ(+) mass was observed. The upper limit of the production cross section averaged over the scattering angle of 2° to 15° in the laboratory frame is obtained to be 0.26 μb/sr in the mass region of 1.51-1.55 GeV/c(2). The upper limit of the Θ(+) decay width is obtained to be 0.72 and 3.1 MeV for J(Θ)(P)=1/2(+) and J(Θ)(P)=1/2(-), respectively, using the effective Lagrangian approach.

Search for Theta+ via pi- p ---> K- X reaction near production threshold

We have searched for

Search for Θ+ via π−p→K−X reaction near production threshold

\Theta^{+}

Production of twin λ-hypernuclei from ξ- hyperon capture at rest

via

Observation of double-hypernuclei and Λ-Λ interaction

\pi^{-}p \to K^{-}X

Hyperon Scattering Experiments with a New Tracking Detector “SCITIC”

reaction using 1.87 and 1.92 GeV/c

Search for theΘ+Pentaquark via theπ−p→K−XReaction at1.92GeV/c

\pi^{-}

Search for the θ+ pentaquark via the π-p→K-X reaction at 1.92GeV/c

beam at the K2 beam line of the KEK 12 GeV Proton Synchrotron. In the missing mass spectrum at beam momentum of 1.92 GeV/

PRODUCTION OF DOUBLE STRANGENESS HYPERNUCLEI IN 12C(K-,K+) REACTION AT 1.67 GeV/c

c

Search for the H-dibaryon resonance in {sup 12}C (K{sup -},K{sup +}{lambda}{lambda}X)

, a bump has been found at 1530 MeV/