@Article{ATLASCollaborationAad_etal2023,
author="ATLAS Collaboration (Aad, G. et al
and Aparisi Pozo, J. A.
and Bailey, A. J.
and Cabrera Urban, S.
and Castillo, F. L.
and Castillo Gimenez, V.
and Cerda Alberich, L.
and Costa, M. J.
and Escobar, C.
and Estrada Pastor, O.
and Ferrer, A.
and Fiorini, L.
and Fullana Torregrosa, E.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Gonzalvo Rodriguez, G. R.
and Guerrero Rojas, J. G. R.
and Higon-Rodriguez, E.
and Lacasta, C.
and Lozano Bahilo, J. J.
and Madaffari, D.
and Mamuzic, J.
and Marti-Garcia, S.
and Mi{\~{n}}ano M.
and Mitsou, V. A.
and Moreno Llacer, M.
and Rodriguez Bosca, S.
and Rodriguez Rodriguez, D.
and Ruiz-Martinez, A.
and Salt, J.
and Santra, A.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Search in diphoton and dielectron final states for displaced production of Higgs or Z bosons with the ATLAS detector in root s=13 TeV pp collisions",
journal="Physical Review D",
year="2023",
publisher="Amer Physical Soc",
volume="108",
number="1",
pages="012012--32pp",
abstract="A search is presented for displaced production of Higgs bosons or Z bosons, originating from the decay of a neutral long-lived particle (LLP) and reconstructed in the decay modes H -{\&} gamma;{\&} gamma; and Z -ee. The analysis uses the full Run 2 dataset of proton-proton collisions delivered by the LHC at an energy of p1/4 13 TeV between 2015 and 2018 and recorded by the ATLAS detector, corresponding to an ffiffi s integrated luminosity of 139 fb-1. Exploiting the capabilities of the ATLAS liquid argon calorimeter to precisely measure the arrival times and trajectories of electromagnetic objects, the analysis searches for the signature of pairs of photons or electrons which arise from a common displaced vertex and which arrive after some delay at the calorimeter. The results are interpreted in a gauge-mediated supersymmetry breaking model with pair-produced Higgsinos that decay to LLPs, and each LLP subsequently decays into either a Higgs boson or a Z boson. The final state includes at least two particles that escape direct detection, giving rise to missing transverse momentum. No significant excess is observed above the background expectation. The results are used to set upper limits on the cross section for Higgsino pair production, up to a {\&} chi;{\&} SIM;01 mass of 369 (704) GeV for decays with 100{\%} branching ratio of {\&} chi; {\&} SIM;01 to Higgs (Z) bosons for a {\&} chi;{\&} SIM;01 lifetime of 2 ns. A model-independent limit is also set on the production of pairs of photons or electrons with a significant delay in arrival at the calorimeter.",
optnote="WOS:001058590400001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5708), last updated on Mon, 30 Oct 2023 18:40:05 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.108.012012",
opturl="https://arxiv.org/abs/2210.10412",
opturl="https://doi.org/10.1103/PhysRevD.108.012012",
language="English"
}