Precision Constraints on Extra Fermion Generations

Abstract

There has been renewed interest in the possibility of additional fermion generations. At the same time there have been significant changes in the relevant electroweak precision constraints, in particular, in the interpretation of several of the low energy experiments. We summarize the various motivations for extra families and analyze them in view of the latest electroweak precision data.

5 pages, 2 figures, minor changes

References in corpus (5)

• Testing the Standard Model by precision measurement of the weak charges of quarks
• Isovector EMC effect explains the NuTeV anomaly
• Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar Mass Difference in Four Generation Standard Mode
• Experimental constraints on fourth generation quark masses
• Electroweak Symmetry Breaking from a Holographic Fourth Generation

Cited by in corpus (23)

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• OPUCEM: A Library with Error Checking Mechanism for Computing Oblique Parameters
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• Pair Production of Fourth Family Charged Sleptons at $e^{+}{e}^{-}$ Colliders
• Highlights of Flavour Violation in the Presence of a 4th Generation
• Flavour physics with a 4th generation