2013年7月
Double-Λ hypernuclei observed in a hybrid emulsion experiment
Physical Review C - Nuclear Physics
- 巻
- 88
- 号
- 1
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevC.88.014003
A hybrid experiment with nuclear emulsion and scintillating-fiber detectors (KEK-E373) has been performed to search for double-strangeness systems. Among about 103 events of Ξ- hyperons captured at rest by emulsion nuclei, we have observed four events which clearly show the topology of cascade weak decays of double-Λ hypernuclei including the "Nagara" event. Regarding the Nagara event, values of the two-Λ binding energy (BΛΛ) and the Λ-Λ interaction energy (ΔBΛΛ) of ΛΛ6He have been revised to 6.91 ± 0.16 and 0.67 ± 0.17 MeV, respectively, due to the recent change of the Ξ- mass value (Particle Data Group). For another three events, we have determined possible species of double-Λ hypernuclei together with their binding energies. © 2013 American Physical Society.
- リンク情報
-
- DOI
- https://doi.org/10.1103/PhysRevC.88.014003
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000321999100002&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84881137225&origin=inward
- ID情報
-
- DOI : 10.1103/PhysRevC.88.014003
- ISSN : 0556-2813
- SCOPUS ID : 84881137225
- Web of Science ID : WOS:000321999100002