Abstract
The first results obtained in 1998 by the Crystal Ball collaboration from a measurement of the total and differential cross sections for the reaction π − p → ηn are presented. These new experimental results for the total cross sections are compared with the predictions of the K-matrix model for pion-nucleon scattering. The angular distribution at momenta near the reaction threshold (685 MeV/c) is determined by the S-wave contribution. The P-wave contribution begins to manifest itself from a momentum of 720 MeV/c.
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Translated from Yadernaya Fizika, Vol. 66, No. 1, 2003, pp. 112–115.
Original Russian Text Copyright © 2003 by Kozlenko, Abaev, Bekrenev, Kruglov, Koulbardis, Lopatin, Starostin, Draper, Hayden, Huddleston, Isenhower, Robinson, Sadler, Allgower, Cadman, Spinka, Comfort, Craig, Ramirez, Kycia, Clajus, Marusic, McDonald, Nefkens, Phaisangittisakul, Prakhov, Price, Tippens, Peterson, Briscoe, Shafi, Strakovsky, Staudenmaier, Manley, Olmsted, Peaslee, Knecht, Lolos, Papandreou, Supek, Slaus, Gibson, Grosnic, Koetke, Manweiler, Stanislaus.
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Kozlenko, N.G., Abaev, V.V., Bekrenev, V.S. et al. Measurement of the total and differential cross sections for the reaction π − p → ηn with the Crystal Ball detector. Phys. Atom. Nuclei 66, 110–113 (2003). https://doi.org/10.1134/1.1540664
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DOI: https://doi.org/10.1134/1.1540664