SUSY Higgs cross sections at hadron colliders TeV4LHC Higgs working Group


The results have been obtained with FeynHiggs2.2.10. They can be simply reproduced by using the web interface at the address above. Plots for four benchmark scenarios are provided:

• m_h^max (with maximum light Higgs mass values)
• no-mixing (with no mixing in the stop sector)
• small alpha_eff (with vanishing hbb and htautau couplings for some parts of the parameter space)
• gluophobic Higgs (with small ggh coupling, especially visible for tan(beta) = 5)

These scenarios are defined in hep-ph/0202167. For each scenario two reference values of tan(beta) (=5 and 40) are chosen, so that a total of 8 plots for each collider (Tevatron and LHC) is given.
The cross sections are obtained from those of the Standard Model by rescaling the effective couplings as included in FeynHiggs. (For literature see: hep-ph/9812320, hep-ph/9812472, hep-ph/0212020, hep-ph/0507009).
More specifically:

• gg → h+X : full one-loop with SM QCD corrections
• bb → h+X : effective couplings including Delta mb corrections
• qq → qqh+X : effective VVHiggs coupling
• qq → W/Zh+X : effective VVHiggs coupling
• gg,qq → tth : effective ttHiggs coupling (for the pseudo-scalar state A this might not be a good approximation)

"Effective coupling" means that the corrections from Higgs boson propagators that mix the Higgs bosons are included. Often these are also referred to be included via "alpha_eff" (instead of alpha), the effective angle that diagonalizes the higher-order corrected CP-even Higgs mass matrix. NLO QCD corrections to SUSY gg→H, hep-ph/0409010 are not included.

Scenarios	Tevatron Run II		LHC
mhmax	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg
no-mixing	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg
Small alphaeff	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg
Gluophobic	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg	tan(beta)=5 eps jpg	tan(beta)=40 eps jpg