ATLAS Collaboration,
(2019)
Evidence for the production of three massive vector bosons with the ATLAS detector.
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 798.
134913-.
Text
1903.10415v2.pdf - Submitted version Download (1MB) | Preview |
Abstract
A search for the production of three massive vector bosons in proton-proton collisions is performed using data at $\sqrt{s} = 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015-2017, corresponding to an integrated luminosity of $79.8$ fb$^{-1}$. Events with two same-sign leptons $\ell$ (electrons or muons) and at least two reconstructed jets are selected to search for $WWW \to \ell \nu \ell \nu qq$. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for $WWW \to \ell \nu \ell\nu \ell \nu$, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for $WWZ \to \ell \nu qq \ell \ell$. Finally, events with four leptons are analysed to search for $WWZ \to \ell \nu \ell \nu \ell \ell$ and $WZZ \to qq \ell \ell \ell \ell$. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.1 standard deviations, where the expectation is 3.1 standard deviations.
Item Type: | Article |
---|---|
Additional Information: | 37 pages in total, author list starting page 21, 6 figures, 5 tables, submitted to Phys. Lett. B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-22 |
Uncontrolled Keywords: | hep-ex, hep-ex |
Depositing User: | Symplectic Admin |
Date Deposited: | 30 Sep 2019 07:55 |
Last Modified: | 19 Jan 2023 00:25 |
DOI: | 10.1016/j.physletb.2019.134913 |
Open Access URL: | https://doi.org/10.1016/j.physletb.2019.134913 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3056125 |