Photoproduction of phi mesons from nuclei

Details Photoproduction of phi mesons from nuclei Photoproduction of phi mesons from nuclei

2002-10-25

arxiv.org/abs/nucl-th/0210079v1

Phys.Rev. C67 (2003) 024605

Physics

Nuclear Physics

Nuclear Theory

revtex4, 24 pages

Scientific paper

10.1103/PhysRevC.67.024605

We investigate the consequences of possible medium modifications of the phi meson at finite nuclear matter density on the K+K- mass distribution in photonuclear reactions. The inclusive cross sections for K+K- pair production are calculated within a semi--classical BUU transport model, which combines the initial state interaction of the incoming photon with the final state interactions of the produced particles. The effects of final state interactions on the invariant mass distribution of the observed K+K- pairs are discussed in detail. In addition we calculate the Coulomb correction and possible effects of hadronic kaon potentials on the K+K- mass spectrum. Due to the large cross sections for reactions of the final state particles with the surrounding nuclear medium and the influence of the Coulomb potential we find no measurable sensitivity of the observables to the phi properties at finite baryon density.

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