Once more on extra quark-lepton generations and precision measurements

Details Once more on extra quark-lepton generations and precision measurements Once more on extra quark-lepton generations and precision measurements

2009-04-29

arxiv.org/abs/0904.4570v1

Phys.Atom.Nucl.73:636-642,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Dedicated to L.B. Okun's 80th birthday

Scientific paper

10.1134/S1063778810040095

Precision measurements of $Z$-boson parameters and $W$-boson and $t$-quark
masses put strong constraints on non $SU(2)\times U(1)$ singlet New Physics. We
demonstrate that one extra generation passes electroweak constraints even when
all new particle masses are well above their direct mass bounds.

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