6533b7d6fe1ef96bd12672b1

RESEARCH PRODUCT

EXTRACTION OF ΛΛ SCATTERING LENGTH

M. HayataC. J. YoonC. J. YoonK. TanidaK. TanidaAkira OhnishiAkira OhnishiK. ShojiKaoru TaketaniT. HibiT. HayakawaTomoko YoshidaTomoko YoshidaKoji YamamotoJ. S. SongKazuma NakazawaHiroyuki OkadaS. J. KimK. AokiB. D. ParkTadamitsu KishimotoB. H. ChoiH. AkikawaHirotaka TakahashiM. KurosawaHirohiko SatoYuji ShimizuK. MiwaJ. AsaiNorio SaitoC. S. YoonJung Keun AhnS. H. KimS. H. KimMasaharu IeiriI. G. ParkK. ImaiYoichiro FukaoAkira SatoH. FunahashiH. Funahashi

subject

PhysicsNuclear physicsNuclear and High Energy PhysicsRange (particle radiation)Soft coreExtraction (chemistry)Scattering parametersGeneral Physics and AstronomyProton SynchrotronInvariant massScattering lengthLambdaStandard deviation

description

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.

yearjournalcountryeditionlanguage
2009-10-01International Journal of Modern Physics E
https://doi.org/10.1142/s0218301310016934