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Non-relativistic pair annihilation of nearly mass degenerate neutralinos and charginos II. P-wave and next-to-next-to-leading order S-wave coefficients

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Abstract

This paper is a continuation of an earlier work (arXiv:1210.7928) which computed analytically the tree-level annihilation rates of a collection of non-relativistic neutralino and chargino two-particle states in the general MSSM. Here we extend the results by providing the next-to-next-to-leading order corrections to the rates in the non-relativistic expansion in momenta and mass differences, which include leading P-wave effects, in analytic form. The results are a necessary input for the calculation of the Sommerfeld-enhanced dark matter annihilation rates including short-distance corrections at next-to-next-to-leading order in the non-relativistic expansion in the general MSSM with neutralino LSP.

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Authors and Affiliations

  1. Physik Department T31, Technische Universität München, James-Franck-Straße, D-85748, Garching, Germany

    C. Hellmann

  2. Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056, Aachen, Germany

    C. Hellmann

  3. Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, Apdo. Correos 22085, E-46071, Valencia, Spain

    P. Ruiz-Femenía

Authors
  1. C. Hellmann
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  2. P. Ruiz-Femenía
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Correspondence to C. Hellmann.

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ArXiv ePrint: 1303.0200

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Hellmann, C., Ruiz-Femenía, P. Non-relativistic pair annihilation of nearly mass degenerate neutralinos and charginos II. P-wave and next-to-next-to-leading order S-wave coefficients. J. High Energ. Phys. 2013, 84 (2013). https://doi.org/10.1007/JHEP08(2013)084

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  • DOI: https://doi.org/10.1007/JHEP08(2013)084

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