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arxiv 1411.6930 v1 pith:VUMGXEL6 submitted 2014-11-25 hep-ph astro-ph.CO

Heavy neutralino relic abundance with Sommerfeld enhancements - a study of pMSSM scenarios

M. Beneke , C. Hellmann , P. Ruiz-Femenia This is my paper
classification hep-ph astro-ph.CO
keywords neutralinoenhancementsscenariossommerfeldabundancegeneralheavymodels
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a detailed discussion of Sommerfeld enhancements in neutralino dark matter relic abundance calculations for several popular benchmark scenarios in the general MSSM. Our analysis is focused on models with heavy wino- and higgsino-like neutralino LSP and models interpolating between these two scenarios. This work is the first phenomenological application of effective field theory methods that we have developed in earlier work and that allow for the consistent study of Sommerfeld enhancements in non-relativistic neutralino and chargino co-annihilation reactions within the general MSSM, away from the pure-wino and pure-higgsino limits.

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Cited by 3 Pith papers

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  2. Weak corrections to Minimal Dark Matter annihilations

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    One-loop weak corrections to fermionic MDM annihilation cross sections are computed, with IR divergences canceling in the s-wave and 5% effects in doublet, triplet, and quintuplet cases.

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    Precision study of dark sector phase transitions finds PTA-favored parameters near EFT breakdown with disfavored GW signals after higher-order corrections.