18-22 October 2021
Matsue, Shimane Prefecture, Japan
Asia/Tokyo timezone

Measurement of Drell-Yan Cross-Section in COMPASS

Not scheduled
Room 601 (Kunibiki Messe)

Room 601

Kunibiki Messe

Parallel Session Presentation Transverse momentum structure (TMD) Transverse Momentum Structure (TMD)


Chia-Yu Hsieh (Institute of Physics, Academia Sinica, Taipei, Taiwan)


The COMPASS experiment at CERN performed in 2015 and 2018 Drell-Yan measurements using a 190 GeV negative pion beam scattering off a NH3 target and nuclear aluminium and tungsten targets. We will present the differential cross section obtained from that measurement in the kinematic in x-Feynman, transverse momentum, and mass. The results will be valuable input for constraining parton distribution functions (PDFs) of the pion. We will present preliminary results on Drell-Yan cross sections and compare them to fixed-order QCD calculations with different pion PDFs. The kinematic dependence of nuclear effects in Drell-Yan production will be investigated by comparing the cross sections from three targets of different nuclear mass.

Primary author

Chia-Yu Hsieh (Institute of Physics, Academia Sinica, Taipei, Taiwan)

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