Document Detail

Observation of a (6)(LambdaLambda)He double hypernucleus.
MedLine Citation:
PMID:  11736336     Owner:  NLM     Status:  PubMed-not-MEDLINE    
A double-hyperfragment event has been found in a hybrid-emulsion experiment. It is identified uniquely as the sequential decay of ( 6)(LambdaLambda)He emitted from a Xi(-) hyperon nuclear capture at rest. The mass of ( 6)(LambdaLambda)He and the Lambda-Lambda interaction energy DeltaB(LambdaLambda) have been measured for the first time devoid of the ambiguities due to the possibilities of excited states. The value of DeltaB(LambdaLambda) is 1.01+/-0.20(+0.18)(-0.11) MeV. This demonstrates that the Lambda-Lambda interaction is weakly attractive.
H Takahashi; J K Ahn; H Akikawa; S Aoki; K Arai; S Y Bahk; K M Baik; B Bassalleck; J H Chung; M S Chung; D H Davis; T Fukuda; K Hoshino; A Ichikawa; M Ieiri; K Imai; Y H Iwata; Y S Iwata; H Kanda; M Kaneko; T Kawai; M Kawasaki; C O Kim; J Y Kim; S J Kim; S H Kim; Y Kondo; T Kouketsu; Y L Lee; J W McNabb; M Mitsuhara; Y Nagase; C Nagoshi; K Nakazawa; H Noumi; S Ogawa; H Okabe; K Oyama; H M Park; I G Park; J Parker; Y S Ra; J T Rhee; A Rusek; H Shibuya; K S Sim; P K Saha; D Seki; M Sekimoto; J S Song; T Takahashi; F Takeutchi; H Tanaka; K Tanida; J Tojo; H Torii; S Torikai; D N Tovee; N Ushida; K Yamamoto; N Yasuda; J T Yang; C J Yoon; C S Yoon; M Yosoi; T Yoshida; L Zhu
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Publication Detail:
Type:  Journal Article     Date:  2001-11-02
Journal Detail:
Title:  Physical review letters     Volume:  87     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2001 Nov 
Date Detail:
Created Date:  2001-12-13     Completed Date:  2002-01-29     Revised Date:  2003-10-31    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  212502     Citation Subset:  -    
Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
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