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

Collaboration
Jul, 2008
4 pages
Published in:
  • Phys.Rev.Lett. 102 (2009) 182501
e-Print:
DOI:
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Abstract: (arXiv)
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.
  • 25.40.Ve
  • 25.80.Hp
  • 13.75.Jz
  • four-pi-detector: experimental results
  • Darmstadt SIS
  • pi- nucleus: inclusive reaction
  • pi- nucleon: exclusive reaction
  • K0: hadroproduction
  • mass spectrum: (pi+ pi-)
  • K0: momentum spectrum
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