Title:
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phi meson width in the medium from proton induced phi production in nuclei
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Author:
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Magas, Volodymyr; Roca, L.; Oset Baguena, Eulogio
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Other authors:
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Universitat de Barcelona |
Abstract:
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We perform calculations for the production of φ mesons in nuclei at energies just above threshold and study
the A dependence of the cross section. We use results for the φ self-energy in the medium obtained within a chiral
unitary approach. We find a strong A dependence which is tied to the distortion of the incident proton and to the
absorption of the φ on its way out of the nucleus. The effect of this latter process reduces the cross section by
about a factor of 2 in heavy nuclei, proving that the A dependence of the cross section bears valuable information
on the φ width in the nuclear medium. Calculations are done for energies accessible in an experimental facility
like COSY |
Subject(s):
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-Mesons (Física nuclear) -Reaccions nuclears -Mesons -Nuclear reactions |
Rights:
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(c) The American Physical Society, 2005
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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