Title:
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Momentum dependence of the phi-meson nuclear transparency
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Author:
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Hartmann, M.; Kiselev, Yu. T.; Polyanskiy, A.; Paryev, E. Ya.; Büscher, M.; Chiladze, D.; Dymov, S.; Dzyuba, A.; Gebel, R.; Hejny, V.; Kämpfer, B.; Keshelashvili, I.; Koptev, V.; Lorentz, B.; Maeda, Y.; Magas, Volodymyr; Merzliakov, S.; Mikirtytchiants, S.; Nekipelov, M.; Ohm, H.
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Other authors:
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Universitat de Barcelona |
Abstract:
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The production of φ mesons in proton collisions with C, Cu, Ag, and Au targets has been studied via the φ → 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 φ width, and the differential cross section for φ -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 φ width, which corresponds to an effective φN absorption cross section in the range of 14-21 mb. |
Subject(s):
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-Física nuclear -Col·lisions (Física nuclear) -Partícules (Física nuclear) -Hadrons -Nuclear physics -Collisions (Nuclear physics) -Particles (Nuclear physics) -Hadrons |
Rights:
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(c) American Physical Society, 2012
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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