s-wave approximation for asymmetry in nonmesonic decay of finite hypernuclei

dc.contributorNatl Univ La Plata
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.contributorConsejo Nacl Invest Cient & Tecn
dc.date.accessioned2014-05-20T14:06:05Z
dc.date.accessioned2022-10-05T14:58:57Z
dc.date.available2014-05-20T14:06:05Z
dc.date.available2022-10-05T14:58:57Z
dc.date.created2014-05-20T14:06:05Z
dc.date.issued2007-11-01
dc.identifierPhysical Review C. College Pk: Amer Physical Soc, v. 76, n. 5, 8 p., 2007.
dc.identifier0556-2813
dc.identifierhttp://hdl.handle.net/11449/23188
dc.identifier10.1103/PhysRevC.76.054321
dc.identifierWOS:000251327000038
dc.identifierWOS000251327000038.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3896646
dc.description.abstractWe establish the bridge between the commonly used Nabetani-Ogaito-Sato-Kishimoto (NOSK) formula for the asymmetry parameter a(Lambda) in the Lambda p -> np emission of polarized hypernuclei, and the shell-model (SM) formalism for finite hypernuclei. We demonstrate that the s-wave approximation leads to a SM formula for a(Lambda) that is as simple as the NOSK one and that reproduces the exact results for (5)(Lambda)He and (12)(Lambda)C better than initially expected. The simplicity achieved here is indeed remarkable. The new formalism makes the theoretical evaluation of a(Lambda) more transparent and explains clearly why the one-meson exchange model is unable to account for the experimental data of (5)(Lambda)He.
dc.languageeng
dc.publisherAmer Physical Soc
dc.relationPhysical Review C
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titles-wave approximation for asymmetry in nonmesonic decay of finite hypernuclei
dc.typeArtigo


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