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Search for pair production of vector-like T and B quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at s√=13 TeV
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2018-10-23T18:36:32Z | |
dc.date.available | 2018-10-23T18:36:32Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | The CMS collaboration, Sirunyan, A.M., Tumasyan, A. et al. J. High Energ. Phys. (2017) 2017: 85. https://doi.org/10.1007/JHEP11(2017)085 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/26960 | |
dc.description.abstract | A search for pair production of massive vector-like T and B quarks in proton-proton collisions at s√=13 TeV is presented. The data set was collected in 2015 by the CMS experiment at the LHC and corresponds to an integrated luminosity of up to 2.6 fb−1. The T and B quarks are assumed to decay through three possible channels into a heavy boson (either a W, Z or Higgs boson) and a third generation quark. This search is performed in final states with one charged lepton and several jets, exploiting techniques to identify W or Higgs bosons decaying hadronically with large transverse momenta. No excess over the predicted standard model background is observed. Upper limits at 95% confidence level on the T quark pair production cross section are set that exclude T quark masses below 860 GeV in the singlet, and below 830 GeV in the doublet branching fraction scenario. For other branching fraction combinations with ℬ(T → tH) + ℬ(T → bW) ≥ 0.4, lower limits on the T quark range from 790 to 940 GeV. Limits are also set on pair production of singlet vector-like B quarks, which can be excluded up to a mass of 730 GeV. The techniques showcased here for understanding highly-boosted final states are important as the sensitivity to new particles is extended to higher masses. | en_US |
dc.publisher | Springer Verlag | en_US |
dc.rights | © The Author(s) 2017 | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_US |
dc.subject | Hadron-Hadron scattering (experiments) | en_US |
dc.subject | Heavy quark production | en_US |
dc.subject | Vector-like quarks | en_US |
dc.title | Search for pair production of vector-like T and B quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at s√=13 TeV | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Baringer, Philip, S. | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | https://doi.org/10.1007/JHEP11(2017)085 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | en_US |