The light composite Higgs boson in strong extended technicolor

Lane, Kenneth; Pritchett, Lukas

doi:10.1007/JHEP06(2017)140

The light composite Higgs boson in strong extended technicolor

Journal Article · Mon Jun 26 00:00:00 EDT 2017 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP06(2017)140· OSTI ID:1424017

Lane, Kenneth ^[1]; Pritchett, Lukas ^[2]

Boston Univ., MA (United States). Dept. of Physics; Boston University
Boston Univ., MA (United States). Dept. of Physics

This paper extends an earlier one describing the Higgs boson H as a light composite scalar in a strong extended technicolor model of electroweak symmetry breaking. The Higgs mass M _H is made much smaller than Λ_ETC by tuning the ETC coupling very close to the critical value for electroweak symmetry breaking. The technicolor interaction, neglected in the earlier paper, is considered here. Its weakness relative to extended technicolor is essential to understanding the lightness of H compared to the low-lying spin-one technihadrons. Technicolor cannot be completely ignored, but implementing technigluon exchange together with strong extended technicolor appears difficult. We propose a solution that turns out to leave the results of the earlier paper essentially unchanged. An argument is then presented that masses of the spin-one technifermion bound states, ρ _H and a _H , are much larger than M _H and, plausibly, controlled by technicolor. Assuming M _ρH and M _aH are in the TeV-energy region, we identify ρ _H and a _H with the diboson excesses observed near 2 TeV by ATLAS and CMS in LHC Run 1 data, and we discuss their phenomenology for Runs 2 and 3.

View Accepted Manuscript (DOE)

Research Organization:: Boston Univ., MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Grant/Contract Number:: SC0010106

OSTI ID:: 1424017

Alternate ID(s):: OSTI ID: 22699544

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 6 Vol. 2017; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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