Search for Dark Photons in Rare Z Boson Decays with the ATLAS Detector.
Volume
131
Pagination
251801 - ?
Publisher
DOI
10.1103/PhysRevLett.131.251801
Journal
Phys Rev Lett
Issue
Metadata
Show full item recordAbstract
A search for events with a dark photon produced in association with a dark Higgs boson via rare decays of the standard model Z boson is presented, using 139 fb^{-1} of sqrt[s]=13 TeV proton-proton collision data recorded by the ATLAS detector at the Large Hadron Collider. The dark boson decays into a pair of dark photons, and at least two of the three dark photons must each decay into a pair of electrons or muons, resulting in at least two same-flavor opposite-charge lepton pairs in the final state. The data are found to be consistent with the background prediction, and upper limits are set on the dark photon's coupling to the dark Higgs boson times the kinetic mixing between the standard model photon and the dark photon, α_{D}ϵ^{2}, in the dark photon mass range of [5, 40] GeV except for the ϒ mass window [8.8, 11.1] GeV. This search explores new parameter space not previously excluded by other experiments.
Authors
Aad, G; Abbott, B; Abeling, K; Abicht, NJ; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Abusleme Hoffman, ACCollections
- Particle Physics [965]
Language
Licence information
Copyright statements
Related items
Showing items related by title, author, creator and subject.
-
Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at s = 7 and 8 TeV
Abbott, B; Abbott, DC; Abed Abud, A; Abeling, K; Abhayasinghe, DK; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y (Springer Nature, 2023-07-27)A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections ... -
Measurement of the Bs0→ μμ effective lifetime with the ATLAS detector
Aad, G; Abbott, B; Abeling, K; Abicht, NJ; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, BS (Springer Nature, 2023)This paper reports the first ATLAS measurement of the → μμ effective lifetime. The measurement is based on the data collected in... -
Search for magnetic monopoles and stable particles with high electric charges in s = 13 TeV pp collisions with the ATLAS detector
Aad, G; Abbott, B; Abeling, K; Abicht, NJ; Abidi, SH; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, BS (Springer Nature, 2023)We present a search for magnetic monopoles and high-electric-charge objects using LHC Run 2 = 13 TeV proton-proton collisions recorded by the ATLAS detector. A total integrated luminosity...