Pion damping width and pion spectral function in hot pion gas
نویسندگان
چکیده
The temperature behavior of the pion width in hadronic phase is investigated framework Nambu–Jona–Lasinio (NJL) model. contribution to from pion–pion collision considered with a scalar sigma-meson as an intermediate state. It shown that significantly broadens at [Formula: see text][Formula: text]GeV. Using two-step iteration method, suggested by Kadanoff and Baym, spectral function hot gas calculated different temperatures.
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ژورنال
عنوان ژورنال: International Journal of Modern Physics
سال: 2022
ISSN: ['0217-751X', '1793-656X']
DOI: https://doi.org/10.1142/s0217751x22501354