Searches for pair production of charginos and top squarks in final states with two oppositely charged leptons in proton-proton collisions at √s=13 TeV
A search for pair production of supersymmetric particles in events with two oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of protonproton collisions at √ s = 13 TeV collected with t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Nature
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/69754/ http://irep.iium.edu.my/69754/ http://irep.iium.edu.my/69754/ http://irep.iium.edu.my/69754/1/69754_Searches%20for%20pair%20production%20of%20charginos%20and%20top%20squarks_article.pdf http://irep.iium.edu.my/69754/2/69754_Searches%20for%20pair%20production%20of%20charginos%20and%20top%20squarks_scopus.pdf http://irep.iium.edu.my/69754/13/69754%20Searches%20for%20pair%20production%20of%20charginos%20WOS.pdf |
| Summary: | A search for pair production of supersymmetric particles in events with two
oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. The data sample corresponds to an integrated luminosity of 35.9 fb−1
of protonproton collisions at √
s = 13 TeV collected with the CMS detector during the 2016 data
taking period at the LHC. No significant deviation is observed from the predicted standard
model background. The results are interpreted in terms of several simplified models for
chargino and top squark pair production, assuming R-parity conservation and with the
neutralino as the lightest supersymmetric particle. When the chargino is assumed to undergo a cascade decay through sleptons, with a slepton mass equal to the average of the
chargino and neutralino masses, exclusion limits at 95% confidence level are set on the
masses of the chargino and neutralino up to 800 and 320 GeV, respectively. For top squark
pair production, the search focuses on models with a small mass difference between the
top squark and the lightest neutralino. When the top squark decays into an off-shell top
quark and a neutralino, the limits extend up to 420 and 360 GeV for the top squark and
neutralino masses, respectively. |
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