Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf
2 PublikationenMomentum dependence of the phi-meson nuclear transparency
Hartmann, M.; Kiselev, Y. T.; Polyanskiy, A.; Paryev, E. Y.; Buescher, M.; Chiladze, D.; Dymov, S.; Dzyuba, A.; Gebel, R.; Hejny, V.; Kaempfer, B.; Keshelashvili, I.; Koptev, V.; Lorentz, B.; Maeda, Y.; Magas, V. K.; Merzliakov, S.; Mikirtytchiants, S.; Nekipelov, M.; Ohm, H.; Roca, L.; Schade, H.; Serdyuk, V.; Sibirtsev, A.; Sinitsyna, V. Y.; Stein, H. J.; Stroeher, H.; Trusov, S.; Valdau, Y.; Wilkin, C.; Wuestner, P.; Ye, Q. J.
Abstract
The production of phi mesons in proton collisions with C, Cu, Ag, and Au targets has been studied via the phi -> K+K- decay at an incident beam energy of 2.83 GeV using the ANKE detector system at COSY. For the first time, the momentum dependence of the nuclear transparency ratio, the in-medium phi width, and the differential cross section for phi meson production at forward angles have been determined for these targets over the momentum range of 0.6 - 1.6 GeV/c. There are indications of a significant momentum dependence in the value of the extracted phi width, which corresponds to an effective phi-N absorption cross section in the range of 14 - 21 mb.
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Physical Review C 85(2012), 035206
DOI: 10.1103/PhysRevC.85.035206
Cited 38 times in Scopus -
WWW-Beitrag
arXiv:1201.3517: http://arxiv.org/pdf/1201.3517.pdf
Permalink: https://www.hzdr.de/publications/Publ-16865
