0000000000204626

AUTHOR

H. Funahashi

showing 2 related works from this author

Measurement of single spin asymmetry in η-meson production in p↑p and p̄↑p interactions in the beam fragmentation region at 200 GeV/c

1998

We present experimental results on measuring a single spin asymmetry in η-meson production in the interaction of transversely polarized protons and antiprotons at plab = 200 GeV/c with a proton target in the region 0.2 < xF < 0.7 for p↑p, 0.3 < xF < 0.7 for p↑p and 0.7 < pT < 2.0 GeV/c. A comparison of single spin asymmetries in π- and η-meson production is made.

PhysicsNuclear and High Energy PhysicsParticle physicsMeson productionProtonmedia_common.quotation_subjectNuclear TheoryAstrophysics::Cosmology and Extragalactic AstrophysicsAsymmetryNuclear physicsFragmentation (mass spectrometry)AntiprotonHigh Energy Physics::ExperimentNuclear Experimentmedia_commonNuclear Physics B
researchProduct

EXTRACTION OF ΛΛ SCATTERING LENGTH

2009

We determine ΛΛ scattering parameters from a ΛΛ invariant mass spectrum that was obtained by 12 C (K-, K+ΛΛ) reaction at the KEK Proton Synchrotron. In the framework of Watson's procedure, the obtained scattering length [Formula: see text] and effective range [Formula: see text] are most consistent with the values predicted by using the Nijmegen soft core models (NSC97's). However, the predicted values by using the Nijmegen hard-core ND ( G -matrix) and the extended soft-core (ESC00) models are out of two standard deviations from the determined scattering parameters.

PhysicsNuclear physicsNuclear and High Energy PhysicsRange (particle radiation)Soft coreExtraction (chemistry)Scattering parametersGeneral Physics and AstronomyProton SynchrotronInvariant massScattering lengthLambdaStandard deviationInternational Journal of Modern Physics E
researchProduct