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 bb¯, leading to a reconstructed final state with at least three energetic b-jets and 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 bb¯, 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.
- 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
- ATLAS Collaboration (Author)Aram Apyan (Author) - Brandeis University, Martin A. Fisher School of PhysicsJames Bensinger (Author) - Brandeis University, Martin A. Fisher School of PhysicsGabriella Sciolla (Author) - Brandeis University, Martin A. Fisher School of Physics
- Physical review. D, Particles, fields, gravitation, and cosmology, Vol.109, 112011
- American Physical Society
- 9924380787001921
- Martin A. Fisher School of Physics
- Journal article