Search for supersymmetric partners of electrons and muons in proton–proton collisions at s=13TeV
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 3...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Elsevier B.V.
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/71697/ http://irep.iium.edu.my/71697/ http://irep.iium.edu.my/71697/ http://irep.iium.edu.my/71697/1/71697_Search%20for%20supersymmetric%20partners%20of%20electrons_article.pdf http://irep.iium.edu.my/71697/2/71697_Search%20for%20supersymmetric%20partners%20of%20electrons_wos.pdf http://irep.iium.edu.my/71697/3/71697_Search%20for%20supersymmetric%20partners%20of%20electrons_scopus.pdf |
| Summary: | 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−1 of
proton–proton collisions at √s = 13 TeV, collected with the CMS detector at the LHC in 2016. The search
uses the MT2 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. |
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