Search for single production of vector-like quarks decaying to a b quark and a higgs boson
A search is presented for single production of heavy vector-like quarks (B) that decay to a Higgs boson and a b quark, with the Higgs boson decaying to a highly boosted bb pair reconstructed as a single collimated jet. The analysis is based on data collected ¯ by the CMS experiment in proton-prot...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Springer Nature
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/66003/ http://irep.iium.edu.my/66003/ http://irep.iium.edu.my/66003/ http://irep.iium.edu.my/66003/1/66003_Search%20for%20single%20production%20of%20vector-like%20quarks_article.pdf http://irep.iium.edu.my/66003/2/66003_Search%20for%20single%20production%20of%20vector-like%20quarks_scopus.pdf |
| Summary: | A search is presented for single production of heavy vector-like quarks (B) that
decay to a Higgs boson and a b quark, with the Higgs boson decaying to a highly boosted
bb pair reconstructed as a single collimated jet. The analysis is based on data collected ¯
by the CMS experiment in proton-proton collisions at √
s = 13 TeV, corresponding to an
integrated luminosity of 35.9 fb−1
. The data are consistent with background expectations,
and upper limits at 95% confidence level on the product of the B quark cross section and
the branching fraction are obtained in the range 1.28–0.07 pb, for a narrow B quark with
a mass between 700 and 1800 GeV. The production of B quarks with widths of 10, 20 and
30% of the resonance mass is also considered, and the sensitivities obtained are similar to
those achieved in the narrow width case. This is the first search at the CERN LHC for
the single production of a B quark through its fully hadronic decay channel, and the first
study considering finite resonance widths of the B quark. |
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