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arXiv · 2304.12538

Thermal neutrino self-energy beyond the contact approximation

Andrea Erdas
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Abstract

Using the Schwinger proper time method I calculate exactly the bubble diagram contribution to the thermal neutrino self-energy, obtaining exact results that cannot be achieved using the contact approximation. These results allow me to obtain the dispersion relation for neutrino in a medium under several different conditions.

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Andrea Erdas. 2023-04-25. Thermal neutrino self-energy beyond the contact approximation. https://arxiv.org/abs/2304.12538

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