Experimental search for narrow resonances in the reaction π-p→γγ n at 13 GeV/c

I. H. Chiang, R. A. Johnson, B. P. Kwan, T. F. Kycia, K. K. Li, L. S. Littenberg, A. R. Wijangco, A. M. Halling, G. E. Hogan, C. G. Lu, K. T. McDonald, A. J.S. Smith, M. H. Ye, L. A. Garren, J. J. Thaler

Research output: Contribution to journalArticlepeer-review


Using a double arm electromagnetic calorimeter we have searched for narrow states produced in the exclusive reaction π-p→γγn at 13 GeV/c. No enhancements were observed in the mass range 2.0-4.0 GeV/c2. For example, the 90% confidence limit on ηc production is σ(π-p→ηcn)× B(ηc→γγ) < 44 pb.

Original languageEnglish (US)
Pages (from-to)145-148
Number of pages4
JournalPhysics Letters B
Issue number1-2
StatePublished - May 31 1984

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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