Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-14
Eur.Phys.J.C20:689-694,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
latex + 7 eps figs, 14 pages, final version to be published in EPJC
Scientific paper
10.1007/s100520100695
New NLO b->sgamma calculations have become available using resummed radiative corrections. Using these calculations we perform a global fit of the supergravity inspired constrained minimal supersymmetric model (CMSSM). We find that the resummed calculations show similar constraints as the LO calculations, namely that only with a relatively heavy supersymmetric mass spectrum of the order of 1 TeV the b-\tau Yukawa unification and the b->sgamma rate can coexist in the large tanb scenario. The resummed b->sgamma calculations are found to reduce the renormalization scale uncertainty considerably. The low tanb scenario is excluded by the present Higgs limits from LEP II. The constraint from the Higgs limit in the $m_0,m_{1/2}$ plane is severe, if the trilinear coupling A_0 at the GUT scale is fixed to zero, but is considerably reduced for $A_0\le -2m_0$. The relatively heavy SUSY spectrum required by \besg corresponds to a Higgs mass of $m_h=119\pm 1~ (stop masses)}\pm 2~(theory)~\pm~3 (top mass) GeV $ in the CMSSM.
Boer Wim de
Gladyshev A. V.
Huber Marcus
Kazakov Dmitri I.
No associations
LandOfFree
The b->sgamma rate and Higgs boson limits in the Constrained Minimal Supersymmetric Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The b->sgamma rate and Higgs boson limits in the Constrained Minimal Supersymmetric Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The b->sgamma rate and Higgs boson limits in the Constrained Minimal Supersymmetric Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-432854