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- W3100699802 abstract "We study two experimental ways to measure the heavy-quark content of the proton: using the Callan-Gross ratio $R(x,Q^2)=F_L/F_T$ and/or azimuthal $cos(2varphi)$ asymmetry in deep inelastic lepton-nucleon scattering. Our approach is based on the perturbative stability of the QCD predictions for these two quantities. We resume the mass logarithms of the type $alpha_{s}lnleft( Q^{2}/m^{2}right)$ and conclude that heavy-quark densities in the nucleon can, in principle, be determined from data on the Callan-Gross ratio and/or azimuthal asymmetry. In particular, the charm content of the proton can be measured in future studies at the proposed Large Hadron-Electron (LHeC) and Electron-Ion (EIC) Colliders." @default.
- W3100699802 created "2020-11-23" @default.
- W3100699802 creator A5053755530 @default.
- W3100699802 date "2012-02-28" @default.
- W3100699802 modified "2023-10-13" @default.
- W3100699802 title "Azimuthal asymmetry and ratio R = F L /F T as probes of the charm content of the proton" @default.
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- W3100699802 doi "https://doi.org/10.3103/s1068337212020016" @default.
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