Ruling out a fourth generation using limits on hadron collider Higgs signals
UC Davis
Lundi 06/06/2011, 11:00
Bat 141, salle André Berthelot Masque obligatoire; en cas de nécessité de dépassement, contacter préalablement le chef d’installation., CEA Paris-Saclay

We consider the impact of a 4th generation on Higgs to two-photon and WW,ZZ signals and demonstrate that the Tevatron and LHC have essentially eliminated the possibility of a 4th generation if the Higgs is SM-like and has mass below 200 GeV. We also show that the absence of enhanced Higgs signals in current data sets in the two-photon and WW,ZZ final states can strongly constrain the possibility of a 4th generation in two-Higgs-doublet models of type II, including the MSSM.

Contact : Fabrice COUDERC


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