Publications by authors named "Annapaola de Cosa"

Article Synopsis
  • This letter proposes a new method for identifying confining dark sectors at the LHC through the detection of semi-visible jets resulting from collisions involving dark quarks from a hidden sector.
  • It explains how these semi-visible jets can produce non-isolated photons and stable/unstable dark bound states, which may not align with current search strategies at the LHC.
  • The authors suggest using a deep neural network to differentiate these exotic jets from background noise by analyzing their unique substructure, allowing for potential discoveries of heavy bosons with masses up to 5 TeV using data from the LHC's Run 2.
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This Letter proposes a new signature for confining dark sectors at the Large Hadron Collider. Under the assumption of a QCD-like hidden sector, hadronic jets containing stable dark bound states could manifest in proton-proton collisions. We present a simplified model with a boson yielding the production of jets made up of dark bound states and subsequently leading to the decays of those that are unstable to leptons and Standard Model quarks.

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This Letter proposes a new search for confining dark sectors at the Large Hadron Collider. As a result of the strong dynamics in the hidden sector, dark matter could manifest in proton-proton collisions at the Large Hadron Collider in form of hadronic jets containing stable invisible bound states. These semi-visible jets have been studied theoretically and experimentally in the fully hadronic signature where the unstable composite dark matter can only decay promptly back to Standard Model quarks.

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