Topcolor in the LHC Era

Conference · Thu Dec 01 00:00:00 EST 2011 · No journal information

DOI:https://doi.org/10.1142/9789814412322_0023· OSTI ID:2511019

Simmons, Elizabeth H. ^[1]; Chivukula, R.Sekhar ^[1]; Coleppa, Baradhwaj ^[2]; Logan, Heather E. ^[2]; Martin, Adam ^[3]

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1. Michigan State U.
2. Ottawa Carleton Inst. Phys.
3. Fermilab

Ongoing LHC searches for the standard model Higgs Boson in WW or ZZ decay modes strongly constrain the top-Higgs state predicted in many models with new dynamics that preferentially affects top quarks. Such a state couples strongly to top-quarks, and is therefore produced through gluon fusion at a rate that can be greatly enhanced relative to the rate for the standard model Higgs boson. As we discuss in this talk, a top-Higgs state with mass less than 300 GeV is excluded at 95% CL if the associated top-pion has a mass of 150 GeV, and the constraint is even stronger if the mass of the top-pion state exceeds the top-quark mass or if the top-pion decay constant is a substantial fraction of the weak scale. These results have significant implications for theories with strong top dynamics, such as topcolor-assisted technicolor, top-seesaw models, and certain Higgsless models.

• Research Organization: Ottawa Carleton Inst. Phys.; Michigan State U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2511019
• Report Number(s): FERMILAB-CONF-11-885-T; oai:inspirehep.net:1081572; arXiv:1112.3538
• Resource Type: Conference paper
• Conference Information: Journal Name: No journal information
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS