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hep-ex2025
Flavour asymmetry of antiquarks in nucleon and nucleus
WenHao Ma, Siqi Yang, Mingzhe Xie +3
Over the years, comprehensive experiments have shown a fact that the nucleons, such as the proton and neutron, are formed by not only the "valence" up and down quarks which were th…
hep-ph2025
Relative difference between up and down quark structure of the proton
Mingzhe Xie, Siqi Yang, Wenhao Ma +3
We presen a novel determination of the down-to-up composition ratio using the forward-backward asymmetry observed in the proton-proton collisions at the LHC. This method offers uni…
hep-ph2025
A -ratio observable for studies of intrinsic transverse momentum of partons from Drell-Yan spectra
Wenxiao Zhan, Siqi Yang, Minghui Liu +2
The determination of the intrinsic transverse momentum distribution of partons is central both for applications of parton shower Monte Carlo generators and for QCD studies of trans…