Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV

@misc{collaboration2026search,
  title = {{Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at $\sqrts$ = 13 TeV}},
  author = {CMS Collaboration},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2605.13649},
  eprint = {2605.13649},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.13649},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Search for single vector-like quark production in opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV
AU  - CMS Collaboration
PY  - 2026
DA  - 2026/10/08
PB  - arXiv
DO  - 10.48550/arxiv.2605.13649
UR  - https://arxiv.org/abs/2605.13649
AB  - A search is presented for single production of a vector-like top quark T, decaying into the standard model top quark and Higgs boson, in a final state including two opposite-sign leptons (electrons or muons), jets, and missing transverse momentum. The data were recorded by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV at the CERN LHC in the years 2016−2018, and corresponding to an integrated luminosity of up to 138 fb^−1. No excess in data over the background expectations is observed. Upper limits at 95% confidence level on the product of the T production cross section and its decay branching fraction to tH are set. The observed limits are 2.0 pb at a T mass 600 GeV and 0.3 pb at M_T = 1200 GeV, with a minimum of 0.1 pb at M_T = 1000 GeV. This is the first search for single vector-like T quark production, followed by a decay to a top quark and the Higgs boson, in opposite-sign dilepton final states.
ER  -