Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-06-25
Phys.Rev. D65 (2002) 075006
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, including 10 ps figures. Version to appear in Phys.Rev.D
Scientific paper
10.1103/PhysRevD.65.075006
In this work we study the indirect effects of squarks and gluinos via supersymmetric QCD radiative corrections in the decays of Higgs particles within the Minimal Supersymmetric Standard Model. We consider a heavy supersymmetric spectrum and focus on the main nondecoupling effects. We propose a set of observables that are sensitive to these corrections and that will be accessible at the CERN Large Hadron Collider and Fermilab Tevatron. These observables are the ratios of Higgs boson branching ratios into quarks divided by the corresponding Higgs boson branching ratios into leptons, and both theoretical and experimental uncertainties are expected to be minimized. We show that these nondecoupling corrections are sizable for all the proposed observables in the large $\tan\beta$ region and are highly correlated. A global analysis of all these observables will allow the experiments to reach the highest sensitivity to indirect supersymmetric signals.
Curiel Ana M.
de Troconiz Jorge F.
Herrero Maria J.
Temes David
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