Scattering amplitudes approach to hard thermal loops
نویسندگان
چکیده
Inspired by recent progress on classical limits of scattering amplitudes, we show that hard thermal loops can be obtained from off-shell currents. The classicality is made manifest associating wavenumbers to soft particles. We compute the limit these currents in QED, QCD and gravity. Our proposal does not involve introduction ghosts.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.104.014013