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High Energy Physics - Phenomenology

arXiv:hep-ph/0511021 (hep-ph)
[Submitted on 2 Nov 2005 (v1), last revised 20 Jul 2007 (this version, v2)]

Title:Flavour changing effects on e^+ e^- -> H b \bar{s}, H \bar{b} s in the MSSM

Authors:W. Hollik, S. Penaranda, M. Vogt
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Abstract: Flavour changing effects originating from the exchange of scalar particles in the processes e^+ e^- -> H b \bar{s}, H \bar{b} s, with H = h^0, H^0, A^0, are investigated in the Minimal Supersymmetric Standard Model with non-minimal flavour violation at the one-loop level. The dominating SUSY-QCD contributions with squark--gluino loops are calculated and discussed. We consider the SUSY scenario with non-minimal flavour mixing in the down-type squark-mass matrix. The flavour-changing cross sections are derived, and we discuss the dependence on the MSSM parameters and the strength of flavour mixing. The values for the cross section can reach 10^{-4} pb for the production of the heavy Higgs boson H^0 or A^0, and only 10^{-7} pb for the light Higgs boson h^0. Non-decoupling behaviour occurs for both h^0, H^0 production in the case of a common heavy SUSY mass scale.
Comments: LaTeX, 20 pages, 11 figures. Discussion and references added. Published version in Eur.Phys.J.C
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: MPP-2004-33, CERN-PH-TH/2004-072
Cite as: arXiv:hep-ph/0511021
  (or arXiv:hep-ph/0511021v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0511021
Journal reference: Eur.Phys.J.C47:207-217,2006
Related DOI: https://doi.org/10.1140/epjc/s2006-02526-6

Submission history

From: Siannah Penaranda [view email]
[v1] Wed, 2 Nov 2005 17:13:50 UTC (140 KB)
[v2] Fri, 20 Jul 2007 10:00:40 UTC (169 KB)
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