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v3.3.2-pre
hMSSM discussion conclusions:
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https://indico.cern.ch/event/357730/
The meeting had as target to discuss the range of validity of the hMSSM.
Pietro showed a comparison of FH vs 2HDM effective theory (EFT) vs hMSSM and
demonstrated that hMSSM tracks well FH at medium/high tanbeta.
Gabriel explained more the 2HDM EFT of the MSSM.
It is shown that hMSSM prediction is reliable as soon as mu << MS
and tanbeta > 2 - 2.5.
In the rest of the region the agreement with the EFT is at the % level.
For large mu the differences can be large, e.g. ~25% was shown for
the b coupling. The exact extent of the differences needs more study.
A question was raised referring to the case where only 2-fermion
decays are present and the couplings depend only on tanbeta, mH+ or mA.
Is for this case the results safe for low (= order 1) tanbeta region?
This is the case in the low mA, low mH+ searches for H/A->tautau and H+->taunu.
For this question two points were raised. The entire
MSSM is ill defined below tanbeta~2 and hence the connections
between the Higgs masses are spoiled. Besides, in the case of
a large top yukawa coupling, radiative corrections to
H+->t*b may get out of control and this can affect BR(H+->taunu).
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