# ${{\boldsymbol t}}{{\boldsymbol H}^{0}}$ associated production cross section INSPIRE search

VALUE DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
1
 2019 BK
CMS ${{\mathit p}}{{\mathit p}}$ , 13 TeV
2
 2016 AU
CMS ${{\mathit p}}{{\mathit p}}$ , 8 TeV
1  SIRUNYAN 2019BK search for the ${{\mathit t}}{{\mathit H}^{0}}$ associated production using multilepton signatures ( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{*}}$ , ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}$ , ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit Z}^{*}}$ ) and signatures with a single lepton and a ${{\mathit b}}{{\overline{\mathit b}}}$ pair ( ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ ) using 35.9 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. Results are combined with ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ (SIRUNYAN 2018DS). The observed 95$\%$ CL upper limit on the ${{\mathit t}}{{\mathit H}^{0}}$ production cross section times ${{\mathit H}^{0}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{*}}{+}$ ${{\mathit \tau}}{{\mathit \tau}}{+}$ ${{\mathit Z}}{{\mathit Z}^{*}}{+}$ ${{\mathit b}}{{\overline{\mathit b}}}{+}$ ${{\mathit \gamma}}{{\mathit \gamma}}$ branching fraction is 1.94 pb (assuming SM ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}^{0}}$ production cross section). See their Table X and Fig. 14. The values outside the ranges of [$-0.9$, $-0.5$] and [1.0, 2.1] times the standard model top quark Yukawa coupling are excluded at 95$\%$ CL.
2  KHACHATRYAN 2016AU search for the ${{\mathit t}}{{\mathit H}^{0}}$ associated production in 19.7 fb${}^{-1}$ at $\mathit E_{{\mathrm {cm}}}$ = 8 TeV. The 95$\%$ CL upper limits on the ${{\mathit t}}{{\mathit H}^{0}}$ associated production cross section is measured to be $600 - 1000$ fb depending on the assumed ${{\mathit \gamma}}{{\mathit \gamma}}$ branching ratios of the Higgs boson. The ${{\mathit \gamma}}{{\mathit \gamma}}$ branching ratio is varied to be by a factor of $0.5 - 3.0$ of the Standard Model Higgs boson (${\mathit m}_{{{\mathit H}^{0}}}$ = 125 GeV). The results of the signal strengths for a negative Higgs-boson trilinear coupling are given. The results are given for ${\mathit m}_{{{\mathit H}^{0}}}$ = 125 GeV.
References:
 SIRUNYAN 2019BK
PR D99 092005 Search for associated production of a Higgs boson and a single top quark in proton-proton collisions at $\sqrt{s} =$ TeV
 KHACHATRYAN 2016AU
JHEP 1606 177 Search for the Associated Production of a Higgs Boson with a Single Top Quark in Proton-Proton Collisions at $\sqrt {s }$ = 8 TeV