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Updated: Jun 19, 2026
07:46
Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Strong electroweak symmetry breaking and spin-0 resonances
1Physics Department, University of California Davis, Davis, California 95616, USA. jaevans@ucdavis.edu
Physical Review Letters
|October 2, 2009
Summary
New spin 0 states at the TeV scale are predicted in strong electroweak symmetry breaking theories. These states, decaying into top quarks or W/Z bosons, offer potential "smoking gun" signals at the Large Hadron Collider.
Area of Science:
- High Energy Physics
- Particle Physics
- Quantum Field Theory
Background:
- The Standard Model of particle physics describes fundamental particles and forces.
- Electroweak symmetry breaking is a key mechanism in the Standard Model.
- Theories beyond the Standard Model are needed to explain phenomena like electroweak symmetry breaking.
Purpose of the Study:
- To investigate the necessary existence of new spin 0 states in strong electroweak symmetry breaking.
- To identify potential production mechanisms and decay channels for these new states at the Large Hadron Collider (LHC).
- To propose these states as potential "smoking gun" signals for strong electroweak symmetry breaking.
Main Methods:
- Theoretical analysis of strong electroweak symmetry breaking sector.
- Investigation of spin 0 states coupling to third-generation quarks (top and bottom).
- Consideration of production via gluon-gluon fusion (gg) or associated production (gb).
Main Results:
- New spin 0 states at the TeV scale are necessarily present in strong electroweak symmetry breaking theories.
- These states couple strongly to third-generation quarks, leading to significant LHC production.
- Decays to top-antitop (tt) or top-bottom (tb/bt) pairs are predicted, with potential for longitudinal W and Z boson final states.
Conclusions:
- The existence of narrow resonances in Quantum Chromodynamics (QCD) supports the presence of such states.
- These resonances decaying to tt or tb/bt offer new, distinctive signals for strong electroweak symmetry breaking.
- The study highlights potential new avenues for experimental searches at the LHC.
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