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arXiv · 0902.3487

Phi decay: a relevant source for K- production at SIS energies?

The HADES Collaboration·G. Agakishiev·A. Balanda·B. Bannier·R. Bassini·D. Belver·A. V. Belyaev·A. Blanco·M. Boehmer·J. L. Boyard·P. Braun-Munzinger·P. Cabanelas·E. Castro·S. Chernenko·T. Christ·M. Destefanis·J. Diaz·F. Dohrmann·A. Dybczak·T. Eberl·W. Enghardt·L. Fabbietti·O. V. Fateev·P. Finocchiaro·P. Fonte·J. Friese·I. Froehlich·T. Galatyuk·J. A. Garzon·R. Gernhaeuser·A. Gil1·C. Gilardi·M. Golubeva·D. Gonzalez-Diaz·F. Guber·M. Heilmann·T. Heinz·T. Hennino·R. Holzmann·A. Ierusalimov·I. Iori·A. Ivashkin·M. Jurkovic·B. Kaempfer·K. Kanaki·T. Karavicheva·D. Kirschner·I. Koenig·W. Koenig·B. W. Kolb·R. Kotte·F. Krizek·R. Kruecken·W. Kuehn·A. Kugler·A. Kurepin·S. Lang·J. S. Lange·K. Lapidus·T. Liu·L. Lopes·M. Lorenz·L. Maier·A. Mangiarotti·J. Markert·V. Metag·B. Michalska·J. Michel·D. Mishra·E. Moriniere·J. Mousa·C. Muentz·L. Naumann·J. Otwinowski·Y. C. Pachmayer·M. Palka·Y. Parpottas·V. Pechenov·O. Pechenova·T. PerezCavalcanti·J. Pietraszko·W. Przygoda·B. Ramstein·A. Reshetin·M. Roy-Stephan·A. Rustamov·A. Sadovsky·B. Sailer·P. Salabura·A. Schmah·E. Schwab·Yu. G. Sobolev·S. Spataro·B. Spruck·H. Stroebele·J. Stroth·C. Sturm·M. Sudol·A. Tarantola·K. Teilab
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Abstract

We present phase space distributions and multiplicities of K+, K- and phi mesons produced in Ar+KCl reactions at a kinetic beam energy of 1.756 AGeV and measured with the HADES spectrometer. The inverse slope parameters and yields of kaons supplement the systematics of previous measurements. The percentage of K- mesons coming fromphi decay is found to be 18+- 7%.

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The HADES Collaboration, G. Agakishiev, A. Balanda, B. Bannier, R. Bassini, D. Belver, A. V. Belyaev, A. Blanco, M. Boehmer, J. L. Boyard, P. Braun-Munzinger, P. Cabanelas, E. Castro, S. Chernenko, T. Christ, M. Destefanis, J. Diaz, F. Dohrmann, A. Dybczak, T. Eberl, W. Enghardt, L. Fabbietti, O. V. Fateev, P. Finocchiaro, P. Fonte, J. Friese, I. Froehlich, T. Galatyuk, J. A. Garzon, R. Gernhaeuser, A. Gil1, C. Gilardi, M. Golubeva, D. Gonzalez-Diaz, F. Guber, M. Heilmann, T. Heinz, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kaempfer, K. Kanaki, T. Karavicheva, D. Kirschner, I. Koenig, W. Koenig, B. W. Kolb, R. Kotte, F. Krizek, R. Kruecken, W. Kuehn, A. Kugler, A. Kurepin, S. Lang, J. S. Lange, K. Lapidus, T. Liu, L. Lopes, M. Lorenz, L. Maier, A. Mangiarotti, J. Markert, V. Metag, B. Michalska, J. Michel, D. Mishra, E. Moriniere, J. Mousa, C. Muentz, L. Naumann, J. Otwinowski, Y. C. Pachmayer, M. Palka, Y. Parpottas, V. Pechenov, O. Pechenova, T. PerezCavalcanti, J. Pietraszko, W. Przygoda, B. Ramstein, A. Reshetin, M. Roy-Stephan, A. Rustamov, A. Sadovsky, B. Sailer, P. Salabura, A. Schmah, E. Schwab, Yu. G. Sobolev, S. Spataro, B. Spruck, H. Stroebele, J. Stroth, C. Sturm, M. Sudol, A. Tarantola, K. Teilab. 2009-02-20. Phi decay: a relevant source for K- production at SIS energies?. https://doi.org/10.1103/physrevc.80.025209

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