phi meson width in the medium from proton induced phi production in nuclei
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phi meson width in the medium from proton induced phi production in nuclei

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phi meson width in the medium from proton induced phi production in nuclei

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Magas, Volodymyr; Roca Zamora, Luis; Oset Báguena, Eulogio Perfil
Aquest document és un/a article, creat/da en: 2005
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 selfenergy 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 in its way out of the nucleus. The effect of this latter process reduces the cross section in about a factor two 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 which are accessible in an experimental facility like COSY.

    Magas, Volodymyr Roca Zamora, Luis Oset Báguena, Eulogio 2005 phi meson width in the medium from proton induced phi production in nuclei Physical Review C 71 6 065202-1 065202-11
http://dx.doi.org/10.1103/PhysRevC.71.065202
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