Resummed photon spectrum from dark matter annihilation for intermediate and narrow energy resolution

A bstract The annihilation cross section of weakly interacting TeV scale dark matter particles χ 0 into photons is affected by large quantum corrections due to electroweak Sudakov logarithms and the Sommerfeld effect. We extend our previous work on the resummation of the semi-inclusive photon energy...

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Bibliographic Details
Published in:The journal of high energy physics 2019-08, Vol.2019 (8), p.1-86, Article 103
Main Authors: Beneke, M., Broggio, A., Hasner, C., Urban, K., Vollmann, M.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Dark matter
Elementary Particles
Energy resolution
Energy spectra
Field theory
High energy physics
Logarithms
NLO Computations
Photons
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
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Summary:A bstract The annihilation cross section of weakly interacting TeV scale dark matter particles χ 0 into photons is affected by large quantum corrections due to electroweak Sudakov logarithms and the Sommerfeld effect. We extend our previous work on the resummation of the semi-inclusive photon energy spectrum in χ 0 χ 0 → γ + X in the vicinity of the maximal photon energy E γ = m χ with NLL’ accuracy from the case of narrow photon energy resolution E res γ of order m W 2 / m χ to intermediate resolution of order E res γ ∼ m W . We also provide details on the previous narrow resolution calculation. The two calculations, performed in different effective field theory set-ups for the wino dark matter model, are then shown to match well, providing an accurate representation up to energy resolutions of about 300 GeV.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP08(2019)103