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arXiv · 1812.09052

Any Room Left for Technicolor? Dilepton Searches at the LHC and Beyond

Alexander Belyaev·Azaria Coupe·Nick Evans·Marc Scott
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Abstract

Precision electroweak data, a light higgs and LHC searches for new spin one particles are all very constraining on technicolor models. We use a holographic model of walking techicolor (WTC) gauge dynamics, tuned to produce a light higgs and low $S$ parameter, to estimate the range of possible vector($\rho$) and pseudo-vector($A$) resonance masses and couplings as a function of the number of colours and the number of flavours of techni-singlet and techni-doublet quarks. The resulting models predict techni-hadron masses and couplings above the current limits from dilepton resonance searches at the LHC because their masses are enhanced by the strong coupling extending into the multi-TeV range, while couplings to Standard Model fermions are partly suppressed. The models emphasize the contortions needed to continue to realize technicolor, {the need to explore new signatures beyond dilepton for LHC and also motivate a 100 TeV proton collider.

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Alexander Belyaev, Azaria Coupe, Nick Evans, Marc Scott. 2018-12-21. Any Room Left for Technicolor? Dilepton Searches at the LHC and Beyond. https://doi.org/10.1103/physrevd.99.095006

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