Search for excited leptons in ℓℓγ final states in proton-proton collisions at √s=13 TeV
A search is presented for excited electrons and muons in ``γ 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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer Verlag
2019
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/72614/ http://irep.iium.edu.my/72614/ http://irep.iium.edu.my/72614/ http://irep.iium.edu.my/72614/1/72614_Search%20for%20excited%20leptons%20in%20%E2%84%93%E2%84%93%CE%B3%20final_article.pdf http://irep.iium.edu.my/72614/2/72614_Search%20for%20excited%20leptons%20in%20%E2%84%93%E2%84%93%CE%B3%20final_scopus.pdf |
| Summary: | A search is presented for excited electrons and muons in ``γ 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. |
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