Search for pair production of vector-like quarks in the bWb‾W channel from proton–proton collisions at s=13TeV
A search is presented for the production of vector-like quark pairs, TT or YY, with electric charge of 2/3 (T) or −4/3 (Y), in proton–proton collisions at √s = 13 TeV. The data were collected by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8 fb−1. The T an...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier B.V.
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/69734/ http://irep.iium.edu.my/69734/ http://irep.iium.edu.my/69734/ http://irep.iium.edu.my/69734/1/69734_Search%20for%20pair%20production%20of%20vector-like%20quarks%20in%20the%20bWb%E2%80%BEW_article.pdf http://irep.iium.edu.my/69734/2/69734_Search%20for%20pair%20production%20of%20vector-like%20quarks%20in%20the%20bWb%E2%80%BEW_scopus.pdf |
| Summary: | A search is presented for the production of vector-like quark pairs, TT or YY, with electric charge of
2/3 (T) or −4/3 (Y), in proton–proton collisions at √s = 13 TeV. The data were collected by the CMS
experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8 fb−1. The T and Y
quarks are assumed to decay exclusively to a W boson and a b quark. The search is based on events with
a single isolated electron or muon, large missing transverse momentum, and at least four jets with large
transverse momenta. In the search, a kinematic reconstruction of the final state observables is performed,
which would permit a signal to be detected as a narrow mass peak (≈7% resolution). The observed
number of events is consistent with the standard model prediction. Assuming strong pair production of
the vector-like quarks and a 100% branching fraction to bW, a lower limit of 1295 GeV at 95% confidence
level is set on the T and Y quark masses |
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