A search for πNN bound systems

D. Ashery, J. Lichtenstadt, E. Piasetzky, C. L. Morris, J. D. Zumbro, R. Gilman, M. W. Rawool, S. Mordechai, B. Boyer, A. Fuentes, K. Johnson, J. W. McDonald, M. J. Smithson, A. Williams, S. H. Yoo, C. Fred Moore

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


The d(π+, π-)T+++ and the d(π-, π+) T- reactions were studied at an incident pion energy of 260 MeV. Outgoing negative pions were detected at 35° and 55° in the first reaction, and the positive pions at 45° in the second. Indications for structures corresponding to a (π+pp) system with a mass of 2003.0±1.0 MeV and a (π-nn) system with a mass of 200.1±1.5 MeV were observed with marginal statistical significance. Upper limits for the cross sections are obtained.

Original languageEnglish
Pages (from-to)41-44
Number of pages4
JournalPhysics Letters B
Issue number1
StatePublished - 8 Dec 1988

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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