Associate K-0 production in p plus p collisions at 3.5 GeV: The role of Delta(1232)(++)

TitleAssociate K-0 production in p plus p collisions at 3.5 GeV: The role of Delta(1232)(++)
Publication TypeJournal Article
Year of Publication2014
AuthorsAgakishiev, G., O. Arnold, D. Belver, A. Belyaev, J. C. Berger-Chen, A. Blanco, M. Bohmer, J. L. Boyard, P. Cabanelas, S. Chernenko, A. Dybczak, E. Epple, L. Fabbietti, O. Fateev, P. Finocchiaro, P. Fonte, J. Friese, I. Frohlich, T. Galatyuk, J. A. Garzon, R. Gernhauser, K. Gobel, M. Golubeva, D. Gonzalez-Diaz, F. Guber, M. Gumberidze, T. Heinz, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kampfer, T. Karavicheva, I. Koenig, W. Koenig, B. W. Kolb, G. Korcyl, G. Kornakov, R. Kotte, A. Krasa, F. Krizek, R. Krucken, H. Kuc, W. Kuhn, A. Kugler, T. Kunz, A. Kurepin, V. Ladygin, R. Lalik, K. Lapidus, A. Lebedev, L. Lopes, M. Lorenz, L. Maier, A. Mangiarotti, J. Markert, V. Metag, J. Michel, C. Muntz, R. Munzer, L. Naumann, Y. C. Pachmayer, M. Palka, Y. Parpottas, V. Pechenov, O. Pechenova, J. Pietraszko, W. Przygoda, B. Ramstein, A. Reshetin, A. Rustamov, A. Sadovsky, P. Salabura, A. Schmah, E. Schwab, J. Siebenson, Y. G. Sobolev, B. Spruck, H. Strobele, J. Stroth, C. Sturm, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, H. Tsertos, T. Vasiliev, V. Wagner, M. Weber, C. Wendisch, J. Wustenfeld, S. Yurevich, Y. Zanevsky, and Hades Collaboration
JournalPhysical Review C
Volume90
Issue1
Date PublishedJul
ISBN Number0556-2813
Accession NumberWOS:000338739400001
AbstractAn exclusive analysis of the four-body final states Lambda + p + pi(+) + K-0 and Sigma(0) + p + pi(+) + K-0 measured with HADES for p + p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four-particle event selection (p,pi(+),pi(+),pi(-)) to find cross sections of the different production channels, contributions of the intermediate resonances Delta(++) and Sigma(1385)(+), and corresponding angular distributions. A dominant resonant production is seen, where the reaction Lambda + Delta(++) + K-0 has a cross section about ten times higher (29.45 +/- 0.08(-1.46)(+1.67) +/- 2.06 mu b) than the analogous nonresonant reaction (2.57 +/- 0.02(-1.98)(+0.21) +/- 0.18 mu b). A similar result is obtained in the corresponding Sigma(0) channels with 9.26 +/- 0.05(-0.31)(+1.41) +/- 0.65 mu b in the resonant and 1.35 +/- 0.02(-1.35)(+0.10) +/- 0.09 mu b in the nonresonant reactions.
URL<Go to ISI>://WOS:000338739400001
DOI10.1103/PhysRevC.90.015202
Short TitleAssociate K-0 production in p plus p collisions at 3.5 GeV: The role of Delta(1232)(++)
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