Abstract
We compute the present-day Wino dark matter annihilation cross-section including the one-loop radiative corrections together with the fully treated electroweak Sommerfeld effect. We discuss what is the consistent way of incorporating these two corrections simultaneously and why simply using the running coupling constants values at the Winomass scale is not correct. The results show that up to a few TeV scale the full one-loop computation makes the cross-section smaller up to about 30% with respect to the Sommerfeld enhanced tree level result and are considerably larger than the tree or one-loop level without the Sommerfeld effect.
Similar content being viewed by others
References
F. Boudjema, A. Semenov and D. Temes, Self-annihilation of the neutralino dark matter into two photons or a Z and a photon in the MSSM, Phys. Rev. D 72 (2005) 055024 [hep-ph/0507127] [INSPIRE].
N. Baro, F. Boudjema and A. Semenov, Full one-loop corrections to the relic density in the MSSM: a few examples, Phys. Lett. B 660 (2008) 550 [arXiv:0710.1821] [INSPIRE].
N. Baro, F. Boudjema, G. Chalons and S. Hao, Relic density at one-loop with gauge boson pair production, Phys. Rev. D 81 (2010) 015005 [arXiv:0910.3293] [INSPIRE].
M. Kachelriess and P. Serpico, Model-independent dark matter annihilation bound from the diffuse γ ray flux, Phys. Rev. D 76 (2007) 063516 [arXiv:0707.0209] [INSPIRE].
N.F. Bell, J.B. Dent, T.D. Jacques and T.J. Weiler, Electroweak bremsstrahlung in dark matter annihilation, Phys. Rev. D 78 (2008) 083540 [arXiv:0805.3423] [INSPIRE].
J.B. Dent, R.J. Scherrer and T.J. Weiler, Toward a minimum branching fraction for dark matter annihilation into electromagnetic final states, Phys. Rev. D 78 (2008) 063509 [arXiv:0806.0370] [INSPIRE].
M. Kachelriess, P. Serpico and M. Solberg, On the role of electroweak bremsstrahlung for indirect dark matter signatures, Phys. Rev. D 80 (2009) 123533 [arXiv:0911.0001] [INSPIRE].
P. Ciafaloni and A. Urbano, TeV scale dark matter and electroweak radiative corrections, Phys. Rev. D 82 (2010) 043512 [arXiv:1001.3950] [INSPIRE].
P. Ciafaloni, D. Comelli, A. Riotto, F. Sala, A. Strumia and A. Urbano, Weak corrections are relevant for dark matter indirect detection, JCAP 03 (2011) 019 [arXiv:1009.0224] [INSPIRE].
N.F. Bell, J.B. Dent, T.D. Jacques and T.J. Weiler, Dark matter annihilation signatures from electroweak bremsstrahlung, Phys. Rev. D 84 (2011) 103517 [arXiv:1101.3357] [INSPIRE].
P. Ciafaloni, M. Cirelli, D. Comelli, A. De Simone, A. Riotto and A. Urbano, On the importance of electroweak corrections for Majorana dark matter indirect detection, JCAP 06 (2011) 018 [arXiv:1104.2996] [INSPIRE].
N.F. Bell, J.B. Dent, A.J. Galea, T.D. Jacques, L.M. Krauss and T.J. Weiler, W/Z bremsstrahlung as the dominant annihilation channel for dark matter, revisited, Phys. Lett. B 706 (2011) 6 [arXiv:1104.3823] [INSPIRE].
M. Garny, A. Ibarra and S. Vogl, Antiproton constraints on dark matter annihilations from internal electroweak bremsstrahlung, JCAP 07 (2011) 028 [arXiv:1105.5367] [INSPIRE].
L. Bergstrom, T. Bringmann, M. Eriksson and M. Gustafsson, Gamma rays from heavy neutralino dark matter, Phys. Rev. Lett. 95 (2005) 241301 [hep-ph/0507229] [INSPIRE].
T. Bringmann, L. Bergstrom and J. Edsjo, New Gamma-ray contributions to supersymmetric dark matter annihilation, JHEP 01 (2008) 049 [arXiv:0710.3169] [INSPIRE].
A. Sommerfeld, Über die Beugung und Bremsung der Elektronen (in German), Annalen Phys. 403 (1931) 257.
D.P. Finkbeiner, L. Goodenough, T.R. Slatyer, M. Vogelsberger and N. Weiner, Consistent scenarios for cosmic-ray excesses from Sommerfeld-enhanced dark matter annihilation, JCAP 05 (2011) 002 [arXiv:1011.3082] [INSPIRE].
J. Hisano, S. Matsumoto and M.M. Nojiri, Unitarity and higher order corrections in neutralino dark matter annihilation into two photons, Phys. Rev. D 67 (2003) 075014 [hep-ph/0212022] [INSPIRE].
J. Hisano, S. Matsumoto and M.M. Nojiri, Explosive dark matter annihilation, Phys. Rev. Lett. 92 (2004) 031303 [hep-ph/0307216] [INSPIRE].
J. Hisano, S. Matsumoto, M.M. Nojiri and O. Saito, Non-perturbative effect on dark matter annihilation and gamma ray signature from galactic center, Phys. Rev. D 71 (2005) 063528 [hep-ph/0412403] [INSPIRE].
J. Hisano, S. Matsumoto, M. Nagai, O. Saito and M. Senami, Non-perturbative effect on thermal relic abundance of dark matter, Phys. Lett. B 646 (2007) 34 [hep-ph/0610249] [INSPIRE].
A. Hryczuk, R. Iengo and P. Ullio, Relic densities including Sommerfeld enhancements in the MSSM, JHEP 03 (2011) 069 [arXiv:1010.2172] [INSPIRE].
A. Hryczuk, The Sommerfeld enhancement for scalar particles and application to sfermion co-annihilation regions, Phys. Lett. B 699 (2011) 271 [arXiv:1102.4295] [INSPIRE].
M. Cirelli, N. Fornengo and A. Strumia, Minimal dark matter, Nucl. Phys. B 753 (2006) 178 [hep-ph/0512090] [INSPIRE].
H.-C. Cheng, B.A. Dobrescu and K.T. Matchev, Generic and chiral extensions of the supersymmetric standard model, Nucl. Phys. B 543 (1999) 47 [hep-ph/9811316] [INSPIRE].
R. Iengo, Sommerfeld enhancement: General results from field theory diagrams, JHEP 05 (2009) 024 [arXiv:0902.0688] [INSPIRE].
Particle Data Group collaboration, K. Nakamura et al., Review of particle physics, J. Phys. G 37 (2010) 075021 [INSPIRE].
T.R. Slatyer, The Sommerfeld enhancement for dark matter with an excited state, JCAP 02 (2010) 028 [arXiv:0910.5713] [INSPIRE].
R. Iengo, in preparation.
Particle Data Group collaboration, C. Amsler et al. Review of particle physics, Phys. Lett. B 667 (2008)1 [INSPIRE].
M. Cirelli, A. Strumia and M. Tamburini, Cosmology and astrophysics of minimal dark matter, Nucl. Phys. B 787 (2007) 152 [arXiv:0706.4071] [INSPIRE].
A. Hryczuk, R. Iengo and P. Ullio, in preparation.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1111.2916
Rights and permissions
About this article
Cite this article
Hryczuk, A., Iengo, R. The one-loop and Sommerfeld electroweak corrections to the Wino dark matter annihilation. J. High Energ. Phys. 2012, 163 (2012). https://doi.org/10.1007/JHEP01(2012)163
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP01(2012)163