Combination of searches for heavy resonances using 139 fb$^{-1}$ of proton–proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector
| Autor: | ATLAS Collaboration |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
p p: scattering
CERN Lab final state: ((n)jet) Limits New Physics 13000 GeV-cms production [resonance] Heavy Resonance ((n)jet dilepton) [final state] final state: ((n)jet lepton) coupling constant: upper limit heavy [vector boson] Higgs particle channel cross section: upper limit resonance: heavy heavy [resonance] Coupling benchmark search for [new physics] ((n)jet) [final state] strong coupling scattering [p p] resonance: decay modes upper limit [channel cross section] final state: ((n)jet dilepton) new physics: search for Search ATLAS final state: (3lepton) upper limit [coupling constant] (3lepton) [final state] CERN LHC Coll triplet [vector boson] decay modes [resonance] Combination colliding beams [p p] narrow resonance vector boson: heavy p p: colliding beams vector boson: triplet ((n)jet lepton) [final state] resonance: production experimental results |
| DOI: | 10.3204/pubdb-2022-06525 |
| Popis: | 26 pp. (2022). Searches for new heavy resonances decaying into different pairings of $W$, $Z$, or Higgs bosons, as well as directly into leptons, are presented using a data sample corresponding to 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV collected from 2015-2018 with the ATLAS detector at the CERN Large Hadron Collider. Analyses selecting bosonic decay modes in the $VV$: $qqqq$, $\nu\nu qq$, $\ell\nu qq$, $\ell\ell qq$, $\ell\nu\ell\ell$, and $VH$: $qqbb$, $\nu\nu bb$, $\ell\nu bb$, and $\ell\ell bb$ final states are combined, searching for a narrow-width resonance. Likewise, analyses selecting the leptonic $\ell\nu$ and $\ell\ell$ final states are combined. These sets of analyses are then further combined with each other. No significant deviation from the Standard Model prediction is observed. A simplified model predicting a spin-1 heavy vector-boson triplet is investigated. Cross-section limits are set at the 95% confidence level using an asymptotic approximation and are compared with predictions for the benchmark model. These limits are also expressed in terms of constraints on couplings of the heavy vector-boson triplet to quarks, leptons, and the Higgs boson. The data exclude a heavy vector-boson triplet with mass below 5.8 TeV in a weakly coupled scenario and 4.5 TeV in a strongly coupled scenario. |
| Databáze: | OpenAIRE |
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