Naturalness in the dark at the LHC
| Autor: | Raman Sundrum, Nathaniel Craig, Matt Strassler, Andrey Katz |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Quantum chromodynamics
Physics Global Symmetries Particle physics Nuclear and High Energy Physics Large Hadron Collider High Energy Physics::Phenomenology FOS: Physical sciences ddc:500.2 Effective field theories Parameter space Asymptotic freedom High Energy Physics - Phenomenology Naturalness High Energy Physics - Phenomenology (hep-ph) Nonperturbative Effects Higgs boson Little hierarchy problem High Energy Physics::Experiment Phenomenology (particle physics) Particle Physics - Phenomenology |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol. 1507 (2015) pp. 105-154 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/jhep07(2015)105 |
| Popis: | We revisit the Twin Higgs scenario as a "dark" solution to the little hierarchy problem, identify the structure of a minimal model and its viable parameter space, and analyze its collider implications. In this model, dark naturalness generally leads to Hidden Valley phenomenology. The twin particles, including the top partner, are all Standard-Model-neutral, but naturalness favors the existence of twin strong interactions -- an asymptotically-free force that confines not far above the Standard Model QCD scale -- and a Higgs portal interaction. We show that, taken together, these typically give rise to exotic decays of the Higgs to twin hadrons. Across a substantial portion of the parameter space, certain twin hadrons have visible and often displaced decays, providing a potentially striking LHC signature. We briefly discuss appropriate experimental search strategies. Comment: 64 pages, 10 figures; v2: minor changes, references added |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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