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High Energy Physics - Phenomenology

arXiv:1004.1974 (hep-ph)
[Submitted on 12 Apr 2010]

Title:Higgs boson masses in an extension of the MSSM with vector-like quarks

Authors:S. W. Ham, Seong-A Shim, C. M. Kim, S. K. Oh
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Abstract:We study the Higgs sector of the minimal supersymmetric standard model extended with vector-like quarks, at the one-loop level. The radiative corrections to the tree-level masses of the scalar Higgs bosons are calculated by including the contributions from the loops of top quark, vector-like quarks, and their scalar superpartners, for a reasonable parameter region. We find that the mass of the lightest scalar Higgs boson at the one-loop level should be larger than 85 GeV, if we take into account the negative experimental result for the Higgs search at LEP2. As the radiative corrections are calculated in some detail, we also find that the mass of the lightest scalar Higgs boson at the one-loop level is bounded from above at 280 GeV, This upper bound is increased from a previous result. It may provide a wider possibility for the future collider experiments to discover the lightest scalar Higgs boson of this model.
Comments: 7 pages, 1 figure
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1004.1974 [hep-ph]
  (or arXiv:1004.1974v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1004.1974

Submission history

From: Seung Woo Ham [view email]
[v1] Mon, 12 Apr 2010 14:34:25 UTC (197 KB)
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