Resultados de búsqueda - (((meson OR ((best OR (bestoial OR (esteos OR estoe))) OR waste)) OR wester) OR esto) point~

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    A calculation of the physical mass of sigma meson por Morones Ibarra, J. R., Santos Guevara, Ayax

    Publicado 2007
    “…We calculate the physical mass and the width of the sigma meson by considering that it couples in vacuum to two virtual pions. …”
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    Mass shift of σ-meson in nuclear matter por Morones Ibarra, José Rubén, Menchaca Maciel, Mónica del Carmen, Santos Guevara, Ayax, Robledo Padilla, Felipe Ángel

    Publicado 2013
    “…For completeness, the coupling of sigma to two virtual pions was also considered. It is found that the σ-meson mass decreases with respect to its value in vacuum and that the contribution of the σ–ω mixing effect on the mass shift is relatively small.…”
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    Alternative calculation of the physical mass of the p-meson por Morones Ramírez, Rubén, Mejía Rosales, Sergio

    Publicado 2005
    “…We have derived an expression for the physical mass and width of the ρ-meson in vacuum from its spectral function, calculated in the vector meson dominance model when a ρ 0 meson couples to two virtual pions π +–π −. …”
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