Measurement of the in-medium K0 inclusive cross section in pi- -induced reactions at 1.15 GeV/c

The FOPI collaboration Benabderrahmane, M.L. ; Herrmann, N. ; Wisniewski, K. ; et al.
Phys.Rev.Lett. 102 (2009) 182501, 2009.
Inspire Record 791227 DOI 10.17182/hepdata.52378

The K0 meson production by pi- mesons of 1.15 GeV/c momentum on various nuclear targets was measured with the FOPI spectrometer at the SIS accelerator of GSI. Inclusive production cross-sections and the momentum distributions of K0 mesons are compared to the elementary production cross-sections and to QMC and HSD model predictions. The results point to modifications of the elementary reactions amplitudes inside nuclei and to the existence of a repulsive KN potential of about 20 MeV at normal nuclear matter density.

2 data tables

Inclusive K0 cross section as a function of the mass of the target nucleus.

The ratio of K0 yields produced by pions on heavy(PB) and light(C) targets as a function of the K0 lab. momentum.