How to determine experimentally the K+ nucleus potential and the K+ N rescattering cross section in a hadronic environment?

Details How to determine experimentally the K+ nucleus potential and the K+ N rescattering cross section in a hadronic environment? How to determine experimentally the K+ nucleus potential and the K+ N rescattering cross section in a hadronic environment?

2010-12-16

arxiv.org/abs/1012.3539v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures

Scientific paper

Comparing K+ spectra at low transverse momenta for different symmetric collision systems at beam energies around 1 AGeV allows for a direct determination of both the strength of the K+ nucleus potential as well as of the K+N rescattering cross section in a hadronic environment. Other little known or unknown quantities which enter the K+ dynamics, like the production cross sections of K+ mesons or the hadronic equation of state, do not spoil this signal as they cancel by using ratios of spectra. This procedure is based on transport model calculations using the Isospin Quantum Molecular Dynamics (IQMD) model which describes the available data quantitatively.

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