Phi decay: a relevant source for K- production at SIS energies?
nucl-ex
/ Authors
The HADES Collaboration, G. Agakishiev, A. Balanda, B. Bannier, R. Bassini, D. Belver, A. V. Belyaev, A. Blanco, M. Boehmer, J. L. Boyard
and 103 more authors
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
/ 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%.