Top quark condensation -- a review
Abstract
The author reviews the methods used in calculations of the top quark condensation, in particular in the minimal framework where the neutral Higgs is (predominantly) the {bar t}t condensate leading to an effective minimal Standard Model. These methods are compared and similarities, differences and deficiencies pointed out. The author then reviews literature on extensions of the minimal framework, including scenarios with composite two Higgs doublets, scenarios with additional neutrino condensates, and scenarios where {bar t}t condensation arises from four-fermion interactions with enlarged symmetries. The author discusses also literature on renormalizable models of underlying physics believed to be responsible for the condensation. He then briefly describes works on the prospects of experimental detection of condensation scenarios, and subsequently discusses literature on several theoretical questions connected with the top quark condensation. At the end, the review is summarized and the author outlines several unresolved questions remaining for future investigations.Keywords
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