TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.3.2.008
TI  - The high-temperature expansion of the thermal sunset
PY  - 2020/10/22
UR  - https://scipost.org/SciPostPhysCore.3.2.008
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 3
IS  - 2
SP  - 008
A1  - Ekstedt, Andreas
AU  - Löfgren, Johan
AB  - We give a prescription for calculating the high-temperature expansion of the thermal sunset integral to arbitrary order. We derive all terms odd in $T$, and rederive previous results up to $\mathcal{O}(T^0) $ for both bosonic and fermionic thermal sunsets in dimensional regularisation. We perform analytical and numerical cross-checks. Intermediate steps involve integrals over three Bessel functions.
ER  -

@Article{10.21468/SciPostPhysCore.3.2.008,
	title={{The high-temperature expansion of the thermal sunset}},
	author={Andreas Ekstedt and Johan Löfgren},
	journal={SciPost Phys. Core},
	volume={3},
	pages={008},
	year={2020},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.3.2.008},
	url={https://scipost.org/10.21468/SciPostPhysCore.3.2.008},
}