Novel angular dependence in Drell-Yan lepton production via dimension-8 operators

• DOI: 10.1016/j.physletb.2020.135703
• Publication Date: 2020-08-19T14:48:42Z
• Authors: Simone Alioli; Radja Boughezal; Emanuele Mereghetti; Frank Petriello
• Keywords: High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Physics; QC1-999; 0103 physical sciences; FOS: Physical sciences; SMEFT;; 01 natural sciences; 7. Clean energy; High Energy Physics - Experiment

We study the effects of dimension-8 operators on Drell-Yan production of lepton pairs at the Large Hadron Collider (LHC). We identify a class of operators that leads to novel angular dependence not accounted for in current analyses. The observation of such effects would be a smoking-gun signature of new physics appearing at the dimension-8 level. We propose an extension of the currently used angular basis and show that these effects should be observable in future LHC analyses for realistic values of the associated dimension-8 Wilson coefficients.<br/>6 pages, 1 figure<br/>