122606637
High-energy Drell-Yan dimuon process in a Glauber model
In the framework of the Glauber model, taking into account the K'-factor, we analyse the Drell-Yan dimuon production cross sections for an absolute measurement of continuum dimuon (Drell-Yan) cross section in 800 GeV/c pp collisions. The calculated results of the leading order agree only poorly with the new experimental data, but there is a general agreement between the next-to-leading-order QCD correction results and the experimental data. It is shown that the QCD corrections to the Drell-Yan process cannot be omitted. Then, by means of the nuclear parton distribution obtained from the DGLAP equation, taking into account the energy loss of the beam proton through the nucleus, we analyse the QCD corrections to the measured Drell-Yan production cross sections for an 800 GeV proton beam incident on Be, Fe and W nuclear targets in the Glauber model. It is shown that the theoretical results are in good agreement with the FNAL E866. Finally, we compare the calculated results from the DGLAP equation with those from the latest nuclear effect models.
120643390
D-meson production in an AdS/CFT inspired model at the LHeC
By means of an AdS/CFT inspired model given by Kovchegov Lu and Rezaeian, the D-meson production in e + p (A) collisions at Large Hadron-electron Collider (LHeC) energies is investigated in the color-dipole formalism. The theoretical results indicate that the x-independence phenomena at very small x and Q2, which are predicted by the AdS/CFT inspired model, can be tested by the charmed quark meson production in e + p scattering at LHeC energies. Comparing with the results of the models motivated by pQCD, we also find that the theoretical results predicted by the AdS/CFT inspired model are much larger than those of the GBW and b-CGC models but smaller than that of the KT model at LHeC energies.
121870295
Yang-Baxter matrix and *-calculi on quantum groups of A-series
The authors prove that the differential calculi on quantum groups of A-series given in this letter and in previous papers are *-calculi.
115613624
Six vertex type solutions of Yang-Baxter equation with color parameters