Observation of Multiplicity Dependent Prompt <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>χ</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi><mml:mn>1</mml:mn></mml:mrow></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</mml:mi><mml:mrow><mml:mo stretchy="false">(</mml:…

The production of $\chi_{c1}(3872)$ and $\psi(2S)$ hadrons is studied as a function charged particle multiplicity in $pp$ collisions at center-of-mass energy 8 TeV, corresponding to an integrated luminosity 2 fb$^{-1}$. For both states, the fraction that produced promptly collision vertex found decrease increases. ratio cross-sections for particles also with multiplicity, while no significant dependence on observed equivalent away from $b$-hadron decays. This behavior consistent calculation models structure compact tetraquark. Comparisons model calculations implications binding state are discussed.