{"title":"Structure of 10ΛBe and 10ΛB Hypernuclei Studied with the Four-Body Cluster Model","authors":"E. Hiyama, Y. Yamamoto","doi":"10.1143/PTP.128.105","DOIUrl":null,"url":null,"abstract":"The structure of the isodoublet hypernuclei, 10 Ba nd 10 Be within the framework of an α + α + Λ + N four-body cluster model is studied. Interactions between the constituent subunits are determined to reproduce reasonably well the observed low-energy properties of the αα, αN , αΛ, ααΛ ,a ndααN subsystems. Furthermore, the two-body ΛN interaction is adjusted to reproduce the 0 + -1 + splitting of 4H. The Λ binding energies of 10 Ba nd 10 Be are 8.76 MeV and 8.94 MeV, respectively. The energy splitting of the 1 − -2 − levels in 10 Bi s 0.08 MeV, which does not contradict the experimental report in BNL-E930. An even-state ΛN charge symmetry breaking (CSB) interaction determined from the A = 4 systems works repulsively by +0.1 MeV (attractively by �0. 1M eV) in 10 Be ( 10 B). We discuss a possibility that an odd-state CSB interaction improves the fitting to the experimental data of A =1 0 double Λ hypernuclei. Subject Index: 214","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"105-124"},"PeriodicalIF":0.0000,"publicationDate":"2012-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.105","citationCount":"33","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress of Theoretical Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1143/PTP.128.105","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 33
Abstract
The structure of the isodoublet hypernuclei, 10 Ba nd 10 Be within the framework of an α + α + Λ + N four-body cluster model is studied. Interactions between the constituent subunits are determined to reproduce reasonably well the observed low-energy properties of the αα, αN , αΛ, ααΛ ,a ndααN subsystems. Furthermore, the two-body ΛN interaction is adjusted to reproduce the 0 + -1 + splitting of 4H. The Λ binding energies of 10 Ba nd 10 Be are 8.76 MeV and 8.94 MeV, respectively. The energy splitting of the 1 − -2 − levels in 10 Bi s 0.08 MeV, which does not contradict the experimental report in BNL-E930. An even-state ΛN charge symmetry breaking (CSB) interaction determined from the A = 4 systems works repulsively by +0.1 MeV (attractively by �0. 1M eV) in 10 Be ( 10 B). We discuss a possibility that an odd-state CSB interaction improves the fitting to the experimental data of A =1 0 double Λ hypernuclei. Subject Index: 214
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
