A Heavy Top Quark From Flavor-Universal Colorons
نویسندگان
چکیده
Ordinary technicolor and extended technicolor cannot produce the heavy top quark unaided. We demonstrate that a flavor-universal extension of the color interactions combined with an extended hypercharge sector that singles out the third generation can provide the necessary assistance. We discuss current experimental constraints and suggest how collider experiments can search for the predicted new heavy gauge bosons. ∗e-mail addresses: [email protected], [email protected].
منابع مشابه
Coloron Phenomenology
A flavor-universal extension of the strong interactions was recently proposed in response to the apparent excess of high-ET jets in the inclusive jet spectrum measured at the Tevatron. This paper studies the color octet of massive gauge bosons (‘colorons’) that is present in the low-energy spectrum of the model’s Higgs phase. Constraints from searches for new particles decaying to dijets and fr...
متن کاملB-meson mixing bounds on technicolor theories
Recent work by Burdman, Lane, and Rador has shown that BB̄ mixing places stringent lower bounds on the masses of topgluons and Z ′ bosons in classic topcolorassisted technicolor (TC2) models. This paper finds analogous limits on the Z ′ bosons of flavor-universal TC2 and non-commuting extended technicolor models, and compares the limits with those from precision electroweak measurements. A discu...
متن کاملTopcolor Dynamics and The Effective Gluon-Gluon-Higgs Operator
We discuss the production of the Higgs boson in topcolor models (TCMs) via the gluon fusion process. We consider the Higgs boson as a scalar bound state of t̄t. Nonstandard contributions of the top-yukawa coupling and effects of other heavy quarks, which are expected in realistic TCMs such as topcolor assisted technicolor models (TC2) and top-seesaw (TSS) models, are important for the gluon fusi...
متن کاملThe Significance of the Heavy Top Quark
Experiment shows that the top quark is far heavier than the other elementary fermions. This finding has stimulated research on theories of electroweak and flavor symmetry breaking that include physics beyond the standard model. Efforts to accommodate a heavy top quark within existing frameworks have revealed constraints on model-building. Other investigations have started from the premise that ...
متن کاملBUHEP-97-1 hep-ph/9701282 COLORONS: THEORY AND PHENOMENOLOGY a
We briefly describe the structure and phenomenology of a flavor-universal extension of the strong interactions, focusing on the color-octet of massive gauge bosons ('colorons') present in the low-energy spectrum. We discuss current limits on the colorons and what future measurements may reveal.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008