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Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in √s = 13 TeV pp collisions at the ATLAS experiment

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  • معلومة اضافية
    • بيانات النشر:
      American Physical Society
    • الموضوع:
      2024
    • Collection:
      University of Glasgow: Enlighten - Publications
    • نبذة مختصرة :
      This paper presents a search for pair production of higgsinos, the supersymmetric partners of the Higgs bosons, in scenarios with gauge-mediated supersymmetry breaking. Each higgsino is assumed to decay into a Higgs boson and a nearly massless gravitino. The search targets events where each Higgs boson decays into b ¯ b , leading to a reconstructed final state with at least three energetic b-jets and missing transverse momentum. Two complementary analysis channels are used, with each channel specifically targeting either low or high values of the higgsino mass. The low-mass (high-mass) channel exploits 126 (139) fb−1 of √s = 13 TeV data collected by the ATLAS detector during Run 2 of the Large Hadron Collider. No significant excess above the Standard Model prediction is found. At 95% confidence level, masses between 130 GeV and 940 GeV are excluded for higgsinos decaying exclusively into Higgs bosons and gravitinos. Exclusion limits as a function of the higgsino decay branching ratio to a Higgs boson are also reported.
    • File Description:
      text
    • Relation:
      https://eprints.gla.ac.uk/329157/1/329157.pdf; Aad, G. et al. (2024) Search for pair production of higgsinos in events with two Higgs bosons and missing transverse momentum in √s = 13 TeV pp collisions at the ATLAS experiment. Physical Review D , 109(11), 112011. (doi:10.1103/PhysRevD.109.112011 )
    • Rights:
      cc_by_4
    • الرقم المعرف:
      edsbas.ACB1FE4F