Measurement of the top quark Yukawa coupling from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mi>t</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover></mml:math> kinematic distributions in the dilepton final state in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>

A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at $\sqrt{s}=13\text{ }\text{ }\mathrm{TeV}$, corresponding to an integrated luminosity of $137\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, recorded with the CMS detector. The coupling strength with respect to the standard model value, ${Y}_{t}$, is determined from kinematic distributions in $t\overline{t}$ final states containing $ee$, $\ensuremath{\mu}\ensuremath{\mu}$, or $e\ensuremath{\mu}$ pairs. Variations of the Yukawa coupling strength lead to modified distributions for $t\overline{t}$ production. In particular, the distributions of the mass of the $t\overline{t}$ system and the rapidity difference of the top quark and antiquark are sensitive to the value of ${Y}_{t}$. The measurement yields a best fit value of ${{Y}_{t}=1.16}_{\ensuremath{-}0.35}^{+0.24}$, bounding ${Y}_{t}&lt;1.54$ at a 95% confidence level.