Probing t-channel single top-quark and antiquark production via differential cross-section measurements at s = 13 TeV with the ATLAS detector

Key Points

• This research aims to measure the differential production cross-sections of top quarks and antiquarks in proton-proton collisions at 13 TeV.
• Used the full Run 2 ATLAS dataset with an integrated luminosity of 140 fb−1
• Measured cross-sections as a function of transverse momentum and absolute rapidity at parton level
• Compared results to theoretical predictions from fixed-order calculations and various event generators
• Presented the differential ratio of tq to t¯q cross-sections for the first time
• Applied effective field theory to constrain the Wilson coefficient C Q q 3, 1
• Successfully measured differential cross-sections for both top quarks and antiquarks
• Reported the differential ratio of tq to t¯q cross-sections with new insights
• Results align with theoretical predictions while providing constraints on the Wilson coefficient
• Findings enhance the understanding of single top-quark production mechanisms

Abstract