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Search for resonances decaying into photon pairs in 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector

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arxiv 2102.13405 v3 pith:EE2HGVDU submitted 2021-02-26 hep-ex

classification hep-ex
keywords atlasmodelresonancesspinsqrtbenchmarkbranchingcollected
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Searches for new resonances in the diphoton final state, with spin 0 as predicted by theories with an extended Higgs sector and with spin 2 using a warped extra-dimension benchmark model, are presented using 139 fb$^{-1}$ of $\sqrt{s} = $ 13 TeV $pp$ collision data collected by the ATLAS experiment at the LHC. No significant deviation from the Standard Model is observed and upper limits are placed on the production cross-section times branching ratio to two photons as a function of the resonance mass.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Search for pair-production of vector-like $T$ quarks decaying into a top quark and a spin-0 particle in the diphoton final state in proton proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

    hep-ex 2026-07 accept novelty 6.5 of 10

    No excess is observed in a first ATLAS search for pair-produced vector-like T quarks decaying via an exotic spin-0 particle to diphotons; fiducial cross-section limits and a model exclusion up to m_T≈1620 GeV are set.

  2. Gravitational Waves from Dark Gauge Sectors

    hep-ph 2025-08 conditional novelty 6.0 of 10

    A dark SU(2) gauge sector that explains vector dark matter can produce LISA-detectable gravitational waves from a first-order phase transition, with a companion six-top signature at the HL-LHC.

  3. Radion Portal Freeze-Out Dark-Matter

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A radion from a stabilized warped extra dimension can explain dark matter through resonant annihilation, with indirect detection excluding 5 to 80 GeV masses.

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