Probing parton distribution functions at large x via Drell-Yan forward-backward asymmetry

The forward-backward asymmetry of the Drell-Yan process in dilepton decays at high invariant masses can be used to probe the parton distribution functions at large <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>x</a:mi></a:math>. The behavior of three modern parton distribution function sets (CT18NNLO, MSHT20, and NNPDF4.0) are compared, and updated under various scenarios via eump using proton-proton collision pseudodata generated at <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msqrt><c:mi>s</c:mi></c:msqrt><c:mo>=</c:mo><c:mn>13</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi>TeV</c:mi></c:math> with <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>3000</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:msup><e:mi>fb</e:mi><e:mrow><e:mo>−</e:mo><e:mn>1</e:mn></e:mrow></e:msup></e:math> of integrated luminosity. Published by the American Physical Society 2024