Search for supersymmetric partners of electrons and muons in proton–proton collisions at √ s = 13 TeV
Name
1-s2.0-S0370269319300218-main.pdf
Description
Published version
Size
1.66 MB
Format
Adobe PDF
Checksum (MD5)
bc2189aa57f77bbc10f8015e34c7b911
Author(s)
The CMS Collaboration
Date Issued
2019
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publisher
Elsevier BV
Version
Final published version
Abstract
A search for direct production of the supersymmetric (SUSY) partners of electrons or muons is presented in final states with two opposite-charge, same-flavour leptons (electrons and muons), no jets, and large missing transverse momentum. The data sample corresponds to an integrated luminosity of 35.9 fb of proton–proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2016. The search uses the M variable, which generalises the transverse mass for systems with two invisible objects and provides a discrimination against standard model backgrounds containing W bosons. The observed yields are consistent with the expectations from the standard model. The search is interpreted in the context of simplified SUSY models and probes slepton masses up to approximately 290, 400, and 450 GeV, assuming right-handed only, left-handed only, and both right- and left-handed sleptons (mass degenerate selectrons and smuons), and a massless lightest supersymmetric particle. Limits are also set on selectrons and smuons separately. These limits show an improvement on the existing limits of approximately 150 GeV. −1 T2
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.2019.01.005
