Search for excited leptons in ℓℓγ final states in proton-proton collisions at s = 13 √s=13 TeV
Name
Sirunyan2019_Article_SearchForExcitedLeptonsInℓℓγFi.pdf
Description
Published version
Size
689.55 KB
Format
Adobe PDF
Checksum (MD5)
db831595409894e4151f07c523dde041
Author(s)
The CMS Collaboration
Date Issued
2019
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
© 2019, The Author(s). A search is presented for excited electrons and muons in ℓℓγ final states at the LHC. The search is based on a data sample corresponding to an integrated luminosity of 35.9 fb −1 of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector in 2016. This is the first search for excited leptons at s = 13 TeV. The observation is consistent with the standard model background prediction, and the most stringent exclusion limits to date are set on the excited lepton mass and the compositeness scale, at 95% confidence level. Excited electrons and muons are excluded for masses below 3.9 and 3.8 TeV, respectively, under the assumption that the excited lepton mass equals the compositeness scale. The best observed limit on the compositeness scale is obtained with an excited lepton mass of around 1.0 TeV, excluding values below 25 TeV for both excited electrons and muons.[Figure not available: see fulltext.].
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/10.1007/JHEP04(2019)015
