Projecten per jaar
Abstract
A search is presented for single production of a vector-like T quark with charge $2e/3$, in the decay channel featuring a top quark and a Z boson, with the top quark decaying hadronically and the Z boson decaying to neutrinos. The search uses data collected by the CMS experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 136 $\mathrm{fb}^{-1}$ recorded at the CERN LHC in 2016--2018. The search is sensitive to a T quark mass between 0.6 and 1.8 TeV with decay widths ranging from negligibly small up to 30$\%$ of the T quark mass. Reconstruction strategies for the top quark are based on the degree of Lorentz boosting of its final state. At 95$\%$ confidence level, the upper limit on the product of the cross section and branching fraction for a T quark of small decay width varies between 15 and 602 $\mathrm{fb}$, depending on its mass. For a T quark with decay widths between 10 and 30$\%$ of its mass, this upper limit ranges between 16 and 836 $\mathrm{fb}$. For most of the studied range, the results provide the best limits to date. This is the first search for single T quark production based on the full Run 2 data set of the LHC.
Datum van beschikbaarheid | 13 jan 2022 |
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Uitgever | HEPData |
Format
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iBOF/23/074: Ontsluiten van de charm-Higgs koppeling bij de LHC
D'Hondt, J., Lowette, S., Van Mechelen, P. & Dobur, D.
1/01/23 → 31/12/26
Project: Fundamenteel
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Onderzoekersoutput
- 1 Article
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Search for single production of a vector-like T quark decaying to a top quark and a Z boson in the final state with jets and missing transverse momentum at √s = 13 TeV
CMS Collaboration, 16 mei 2022, In: JHEP. 2022, 5, 49 blz., 93.Onderzoeksoutput: Article › peer review
Open AccessBestand14 Citaten (Scopus)14 Downloads (Pure)