Speaker
Vincent Andrieux
Description
The COMPASS collaboration at CERN performed measurements of the Drell-Yan process using a 190 GeV negative pion beam scattering off a NH3 target and nuclear aluminium and tungsten targets, in the years 2015 and 2018. We present the results of differential cross sections of the dimuon events with the invariant mass between 4.3 and 8.5 GeV/c² in the kinematic regions of x-Feynman from -0.2 to 0.9 and transverse momentum up to 3.6 GeV/c. The measured differential cross sections are compared with the next-to-next-leading order QCD calculations and a reasonable agreement is observed. Our results represent a valuable input for constraining the PDF and the TMD of the pion.
