Production of (4)(double Lambda)H hypernuclei.

Jung Keun Ahn ,J Franz,V Rasin,T Miyachi,C A Davis,H Schmitt,P Koran,S Ajimura,P Khaustov,T Kishimoto,H Outa,H Kohri,M Landry,P Pile,K Shileev,H Akikawa,A Berdoz,S Minami,R A Schumacher,P Eugenio,M May,K Imai,H Hotchi,L Tang,M Prokhabatilov,T Fukuda,A Kourepin,K Tanida,M Sekimoto,T Nagae,A Rusek,H Fischer,L Gan,B Bassalleck,L Yuan,K Paschke,G Franklin ,A K Ichikawa ,R.e Chrien ,Yuki Shimizu ,Z E Meziani ,B Quinn ,Reto Sutter ,Kentaro Yamamoto ,Katsumi Kubota ,Junzo Nakano ,D S Carman ,C A Meyer ,S Kahana ,Toru Tamagawa

doi:10.1103/physrevlett.87.132504

Production of (4)(double Lambda)H hypernuclei.

Jung Keun Ahn , J Franz + Show 48 more

https://doi.org/10.1103/physrevlett.87.132504

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Journal: Physical Review Letters	Publication Date: Sep 5, 2001
Citations: 114

Affiliation: Pusan National University, University of Freiburg, Institute for Nuclear Research, The University of Tokyo, University of Manitoba, TRIUMF, Carnegie Mellon University, Osaka University, High Energy Accelerator Research Organization, Brookhaven National Laboratory, Kyoto University, Hampton University, Osaka Electro-Communication University, University of New Mexico, Temple University

#Double Lambda #Production Of Hypernuclei + Show 8 more

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Abstract

An experiment demonstrating the production of double-Lambda hypernuclei in (K(-),K(+)) reactions on (9)Be was carried out at the D6 line in the BNL alternating-gradient synchrotron. The technique was the observation of pions produced in sequential mesonic weak decay, each pion associated with one unit of strangeness change. The results indicate the production of a significant number of the double hypernucleus (4)(double Lambda)H and the twin hypernuclei (4)(Lambda)H and (3)(Lambda)H. The relevant decay chains are discussed and a simple model of the production mechanism is presented. An implication of this experiment is that the existence of an S = -2 dibaryon more than a few MeV below the double Lambda mass is unlikely.

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