Impact of the relatively light fourth family neutrino on the higgs boson search
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KünyeÇETİN, S.A., ÇUHADAR-DÖNSZELMANN, T., ŞAHİN, M., SULTANSOY, S., ÜNEL, G. (2012). Impact of the relatively light fourth family neutrino on the higgs boson search. Physics Letters B, 710 (2), pp. 328-331. http://dx.doi.org/10.1016/j.physletb.2012.02.088.
The existence of a fourth fermion generation has mostly been considered as a source of enhanced Higgs signals with respect to the 3 family Standard Model predictions. However, a fourth Standard Model family neutrino could cause the opposite situation. It is shown that relatively light fourth family neutrino (2m(nu 4) < m(H)) could drastically change the interpretation of the search results for the Higgs boson, especially if m(H) < 170 GeV.