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Sommerfeld enhancement for a Yukawa potential · Around

2009

Sommerfeld enhancement for a Yukawa potential

Iengo, R.

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We show how easy it is to get the Sommerfeld enhancement for a Yukawa potential, for definite partial waves, beyond the S wave analyzed in previous literature.

In particular, we report results for the P wave (for which there is a resonant pattern and the enhancement can be of several orders of magnitude even far from the resonance) that could be relevant for the analysis of experimental cosmic rays data possibly signaling the annihilation of dark matter particles.

Built on

L.D.Landau,E.M.Lifshitz, ”Quantum Mechanics” Pergamon Press 1958
1958
Earlier work this paper cites.
J.Hisano,S.Matsumoto,M.M.Nojiri,O.Saito, ”Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center” Phys.Rev.D71,063528 (2005)
2005
Earlier work this paper cites.

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M.Cirelli,A.Strumia,M.Tamburini, ”Cosmology and Astrophysics of Minimal Dark Matter” Nucl.Phys. B800:204 (2008), arXiv:0706.4071 [hep-th]
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J.March-Russel,S.M.West,D.Cumberba,D.Hooper, ”Heavy Dark Matter Through the Higgs Portal” JHEP0807:058 (2008), ArXiv: 0801.3440 [hep-ph]]
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M.Lattanzi,J.Silk, ”Can the WIMP annihilation boost factor be boosted by the Sommerfeld enhancement?” arXiv:0812.0360 [astro-ph]
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F.Chen,J.M.Cline,A.R.Frey, ”A new twist on excited dark matter: implications for INTEGRAL, PAMELA/ATIC/PPB-BETS,DAMA” arXiv:0901.4327 [hep-ph]
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B.E.Robertson, A.R.Zentner, ”Dark matter annihilation rates with velocity-dependent annihilation cross section” arXiv:0902.0362 [astro-ph]
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R.Iengo, ”Sommefreld enhancemente: general results from field theory diagrams” arXiv:0902.0688 [hep-ph]
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Then

A.Strumia, ”Sommerfeld corrections to type-II and III leptogenesis” Nucl.Phys.B809:308 (2009), arXiv:0806.163 [hep-ph]
2009
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N.Arkani-Hamed,D.P.Finkbeiner,T.Slatyer,N.Weiner, ”A Theory of Dark Matter” Phys.Rev. D79:015014 (2009), arXiv:0810.071 [hep-ph]
2009
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