Search for the neutron-rich hypernucleus Λ9He

M. Agnello*, L. Benussi, M. Bertani, H. C. Bhang, G. Bonomi, E. Botta, M. Bregant, T. Bressani, S. Bufalino, L. Busso, D. Calvo, P. Camerini, B. Dalena, F. De Mori, G. D'Erasmo, F. L. Fabbri, A. Feliciello, A. Filippi, E. M. Fiore, A. FontanaH. Fujioka, P. Genova, P. Gianotti, N. Grion, V. Lucherini, S. Marcello, N. Mirfakhrai, F. Moia, O. Morra, T. Nagae, H. Outa, A. Pantaleo, V. Paticchio, S. Piano, R. Rui, G. Simonetti, R. Wheadon, A. Zenoni, A. Gal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Search for the neutron-rich hypernucleus Λ9He is reported by the FINUDA experiment at DAΦNE, INFN-LNF, studying (π+-) pairs in coincidence from the Kstop- +9Be→Λ9He+π+ production reaction followed by Λ9He→9Li+π- weak decay. An upper limit of the production rate of Λ9He undergoing this two-body π- decay is determined to be (2.3±1.9)×10-6/Kstop- at the 90% confidence level.

Original languageEnglish
Article number057301
JournalPhysical Review C - Nuclear Physics
Volume86
Issue number5
DOIs
StatePublished - 1 Nov 2012

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