Wino potential and Sommerfeld effect at NLO

Abstract

We calculate the SU(2)$\times$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 ${\chi }^0$. We find sizeable modifications of the ${\chi }^0{\chi }^0$ annihilation cross section and determine the shifts of the resonance locations due to the loop correction to the wino potential.

arXiv commentLaTeX, 12 pages

References in corpus (25)

• Automatized One-Loop Calculations in 4 and D dimensions
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• A Theory of Dark Matter
• Asymptotic expansion of Feynman integrals near threshold
• Cosmology and Astrophysics of Minimal Dark Matter
• Package-X: A Mathematica package for the analytic calculation of one-loop integrals
• Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• Explosive Dark Matter Annihilation
• Package-X 2.0: A Mathematica package for the analytic calculation of one-loop integrals
• In Wino Veritas? Indirect Searches Shed Light on Neutralino Dark Matter
• Techniques for the calculation of electroweak radiative corrections at the one-loop level and results for W-physics at LEP200
• Mass Splitting between Charged and Neutral Winos at Two-Loop Level
• The Sommerfeld enhancement for dark matter with an excited state
• Relic densities including Sommerfeld enhancements in the MSSM
• Relic density of wino-like dark matter in the MSSM
• The one-loop and Sommerfeld electroweak corrections to the Wino dark matter annihilation
• Resummed Photon Spectra for WIMP Annihilation
• The last refuge of mixed wino-Higgsino dark matter
• Non-relativistic pair annihilation of nearly mass degenerate neutralinos and charginos II. P-wave and next-to-next-to-leading order S-wave coefficients
• Energetic $\gamma$-rays from TeV scale dark matter annihilation resummed
• The One-Loop Correction to Heavy Dark Matter Annihilation
• Resummed photon spectrum from dark matter annihilation for intermediate and narrow energy resolution
• Electroweak two-loop contribution to the mass splitting within a new heavy SU(2)${}_L$ fermion multiplet
• The renormalized gauge coupling and non-perturbative tests of dimensional reduction

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• t-channel dark matter at the LHC -- a whitepaper
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• NLO electroweak potentials for minimal dark matter and beyond
• Gamma-ray line from electroweakly interacting non-abelian spin-1 dark matter