Jackson, G.; Laine, M. (2020). A thermal neutrino interaction rate at NLO. Nuclear physics B, 950, p. 114870. Elsevier 10.1016/j.nuclphysb.2019.114870
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The interaction rate of an ultrarelativistic active neutrino at a temperature below the electroweak crossover plays a role in leptogenesis scenarios based on oscillations between active neutrinos and GeV-scale sterile neutrinos. By making use of a Euclideanization property of a thermal light-cone correlator, we determine the O(g)correction to such an interaction rate in the high-temperature limit πT>>mW, finding a ∼15...40%reduction. For a benchmark point, this NLO correction decreases the lepton asymmetries produced by ∼1%.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Jackson, Gregory Scott, Laine, Mikko Sakari |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0550-3213 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
04 Feb 2020 15:08 |
Last Modified: |
05 Dec 2022 15:36 |
Publisher DOI: |
10.1016/j.nuclphysb.2019.114870 |
ArXiv ID: |
1910.12880 |
BORIS DOI: |
10.7892/boris.139629 |
URI: |
https://boris.unibe.ch/id/eprint/139629 |
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