Wino potential and Sommerfeld effect at NLO

Martin Beneke; Robert Szafron; Kai Urban

doi:10.1016/j.physletb.2019.135112

Wino potential and Sommerfeld effect at NLO

Martin Beneke, Robert Szafron, Kai Urban

Lehrstuhl für Theoretische Elementarteilchenphysik

TUM - Lehrstuhl für Architekturinformatik, Prof. Dr.-Ing. Frank Petzold

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

13 Zitate (Scopus)

Abstract

We calculate the SU(2)×U(1) electroweak static potential between a fermionic triplet in the broken phase of the Standard Model in the one-loop order (NLO). The one-loop correction provides the leading non-relativistic correction to the large Sommerfeld effect in the annihilation of wino or wino-like dark matter particles χ⁰. We find sizeable modifications of the χ⁰χ⁰ annihilation cross section and determine the shifts of the resonance locations due to the loop correction to the wino potential.

Originalsprache	Englisch
Aufsatznummer	135112
Fachzeitschrift	Physics Letters B
Jahrgang	800
DOIs	https://doi.org/10.1016/j.physletb.2019.135112
Publikationsstatus	Veröffentlicht - 10 Jan. 2020

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10.1016/j.physletb.2019.135112

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abstract = "We calculate the SU(2)×U(1) electroweak static potential between a fermionic triplet in the broken phase of the Standard Model in the one-loop order (NLO). The one-loop correction provides the leading non-relativistic correction to the large Sommerfeld effect in the annihilation of wino or wino-like dark matter particles χ0. We find sizeable modifications of the χ0χ0 annihilation cross section and determine the shifts of the resonance locations due to the loop correction to the wino potential.",

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AB - We calculate the SU(2)×U(1) electroweak static potential between a fermionic triplet in the broken phase of the Standard Model in the one-loop order (NLO). The one-loop correction provides the leading non-relativistic correction to the large Sommerfeld effect in the annihilation of wino or wino-like dark matter particles χ0. We find sizeable modifications of the χ0χ0 annihilation cross section and determine the shifts of the resonance locations due to the loop correction to the wino potential.

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Wino potential and Sommerfeld effect at NLO

Abstract

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