Measurement of the π-→3π0n total cross section from threshold to 0.75 GeV/c

A. Starostin, B. M K Nefkens, D. M. Manley, V. V. Abaev, C. E. Allgower, V. Bekrenev, W. J. Briscoe, M. Clajus, J. R. Comfort, K. Craig, D. Grosnick, D. Isenhower, N. Knecht, D. D. Koetke, A. A. Koulbardis, N. G. Kozlenko, S. Kruglov, G. Lolos, I. V. Lopatin, R. ManweilerA. Marušić, S. McDonald, J. Olmsted, Z. Papandreou, D. C. Peaslee, N. Phaisangittisakul, S. Prakhov, J. W. Price, A. F. Ramirez, M. Sadler, A. Shafi, H. Spinka, T. D S Stanislaus, H. M. Staudenmaier, I. Supek, W. B. Tippens

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Abstract

We report a new measurement of the π-p→3π 0 total cross section from threshold to pπ=0.75 GeV/c. The cross section near the N (1535)1/2π- resonance is only a few μb after subtracting the large η3π0 background associated with ππ-p→n. A simple analysis of our data results in the estimated branching fraction B[S11→πN(1440)1/2+ = (8±2)%. This is the first such estimate obtained with a three-pion production reaction.

Original languageEnglish (US)
Pages (from-to)682011-682014
Number of pages4
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number6
StatePublished - Jun 1 2003

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Starostin, A., Nefkens, B. M. K., Manley, D. M., Abaev, V. V., Allgower, C. E., Bekrenev, V., Briscoe, W. J., Clajus, M., Comfort, J. R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D. D., Koulbardis, A. A., Kozlenko, N. G., Kruglov, S., Lolos, G., Lopatin, I. V., ... Tippens, W. B. (2003). Measurement of the π-→3π0n total cross section from threshold to 0.75 GeV/c. Physical Review C - Nuclear Physics, 67(6), 682011-682014.