| $\bf{<1.7}$ |
95 |
1 |
|
CMS |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $<1.67$ |
95 |
2 |
|
CMS |
| $<2.1$ |
95 |
3 |
|
CMS |
|
1
SIRUNYAN 2020C search for the production of four top quarks with same-sign and multilepton final states with 137 fb${}^{-1}$ ${{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling ${{\mathit y}_{{t}}}$ to its the Standard Model by comparing to the central value of a theoretical prediction (see their Refs. [1-2]), yielding $\vert {{\mathit y}_{{t}}}/{{\mathit y}_{{t}}^{SM}}\vert $ $<$ 1.7 at 95$\%$ CL. See their Fig. 5.
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2
SIRUNYAN 2019BY measure the top quark Yukawa coupling from ${{\mathit t}}{{\overline{\mathit t}}}$ kinematic distributions, the invariant mass of the top quark pair and the rapidity difference between ${{\mathit t}}$ and ${{\overline{\mathit t}}}$, in the ${{\mathit \ell}}$+jets final state with 35.8 fb${}^{-1}$ ${{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling to its the Standard Model to be $1.07$ ${}^{+0.34}_{-0.43}$ with an upper limit of 1.67 at 95$\%$ CL (see their Table III).
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3
SIRUNYAN 2018BU search for the production of four top quarks with same-sign and multilepton final states with 35.9 fb${}^{-1}$ ${{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling ${{\mathit y}_{{t}}}$ to its the Standard Model by comparing to the central value of a theoretical prediction (see their Ref. [16]), yielding $\vert {{\mathit y}_{{t}}}/{{\mathit y}_{{t}}^{SM}}\vert $ $<$ 2.1 at 95$\%$ CL.
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