In:
Journal of High Energy Physics, Springer Science and Business Media LLC, Vol. 2019, No. 4 ( 2019-04)
Abstract:
A measurement of the four-lepton invariant mass spectrum is made with the ATLAS detector, using an integrated luminosity of 36.1 fb −1 of proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV delivered by the Large Hadron Collider. The differential cross-section is measured for events containing two same-flavour opposite-sign lepton pairs. It exhibits a rich structure, with different mass regions dominated in the Standard Model by single Z boson production, Higgs boson production, and Z boson pair production, and non-negligible interference effects at high invariant masses. The measurement is compared with state-of-the-art Standard Model calculations, which are found to be consistent with the data. These calculations are used to interpret the data in terms of gg → ZZ → 4 ℓ and Z → 4 ℓ subprocesses, and to place constraints on a possible contribution from physics beyond the Standard Model.
Type of Medium:
Online Resource
ISSN:
1029-8479
DOI:
10.1007/JHEP04(2019)048
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2019
detail.hit.zdb_id:
2027350-2
Bookmarklink