Determination of the quadratic slope parameter in η → 3 π0 decay

W. B. Tippens, S. Prakhov, C. E. Allgower, V. Bekrenev, E. Berger, W. J. Briscoe, M. Clajus, J. R. Comfort, K. Craig, A. Efendiev, D. Grosnick, B. R. Holstein, G. M. Huber, D. Isenhower, N. Knecht, D. Koetke, A. Koulbardis, N. Kozlenko, S. Kruglov, G. J. LolosI. Lopatin, D. M. Manley, A. Marušić, R. Manweiler, S. McDonald, B. M K Nefkens, J. Olmsted, Z. Papandreou, N. Phaisangittisakul, J. W. Price, M. Pulver, A. F. Ramirez, M. E. Sadler, A. Shafi, H. Spinka, S. Stanislaus, A. Starostin, H. M. Staudenmaier

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76 Scopus citations


A new precision measurement of the quadratic slope parameter α was made based on 1.9 X 107η mesons produced in a two week run in 1998 with the Crystal Ball (CB) detector. The process π-p → nη → n3π0 → n6γ was identified by analyzing the neutral, six-cluster events detected in the CB. The results were compared with the related case of KL → 3π0.

Original languageEnglish (US)
Article number192001
Pages (from-to)192001/1-192001/4
JournalPhysical Review Letters
Issue number19
StatePublished - Nov 5 2001

ASJC Scopus subject areas

  • General Physics and Astronomy


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