Measurement of the ZZ production cross section and Z →ℓ+ℓ−ℓ′+ℓ′− branching fraction in pp collisions at √ s = 13 TeV
Name
1-s2.0-S0370269316306256-main.pdf
Description
Published version
Size
881.48 KB
Format
Adobe PDF
Checksum (MD5)
a9ded13c327088533f4c754bc48f24cf
Author(s)
The CMS Collaboration
Date Issued
2016
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Citation
Khachatryan, V., et al. "Measurement of the Zz Production Cross Section and Z ? l+l-l'+l'- Branching Fraction in Pp Collisions at S=13 Tev." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 763 (2016): 280-303.
Version
Final published version
Abstract
© 2016 The Author Four-lepton production in proton–proton collisions, pp→(Z/γ⁎)(Z/γ⁎)→ℓ+ℓ−ℓ′+ℓ′−, where ℓ,ℓ′=e or μ, is studied at a center-of-mass energy of 13 TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.6 fb−1. The ZZ production cross section, σ(pp→ZZ)=14.6−1.8+1.9(stat)−0.3+0.5(syst)±0.2(theo)±0.4(lumi)pb, is measured for events with two opposite-sign, same-flavor lepton pairs produced in the mass region 604 GeV for all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2016.10.054
