The Suppression of Neutralino Annihilation into Zh

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dc.creatorLabonne, Benjamin
dc.creatorNezri, Emmanuel
dc.creatorOrloff, Jean
dc.date2006-02-13
dc.date2006-11-14
dc.date.accessioned2026-07-07T12:25:25Z
dc.date.available2026-07-07T12:25:25Z
dc.descriptionThe Indirect Detection of neutralino Dark Matter is most promising through annihilation channels producing a hard energy spectrum for the detected particles, such as the neutralino annihilation into $Zh$. A cancellation however makes this particular annihilation channel generically subdominant in the huge parameter space of supersymmetric models. This cancellation requires non-trivial relations between neutralino mixings and masses, which we derive from gauge independence and unitarity of the MSSM. To show how the cancellation overshoots leaving only a subdominant result, we use a perturbative expansion in powers of the electroweak/supersymmetry breaking ratio $m_{Z}/m_χ$.
dc.description10 pages, 5 figures 10 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0602111
dc.identifierhttp://arxiv.org/abs/hep-ph/0602111
dc.identifierEur.Phys.J.C47:805-814,2006
dc.identifierdoi:10.1140/epjc/s2006-02594-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214605
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Suppression of Neutralino Annihilation into Zh
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