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Title: phi meson width in the medium from proton induced phi production in nuclei
Author: Magas, Volodymyr
Roca, L.
Oset Baguena, Eulogio
Keywords: Mesons (Física nuclear)
Reaccions nuclears
Nuclear reactions
Issue Date: 2005
Publisher: The American Physical Society
Abstract: 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
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review C, 2005, vol. 71, núm. 6, p. 065202-1-065202-11
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ISSN: 0556-2813
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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