Browsing by Author "Güçlu, Mehmet C."

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    Coulomb Corrections in the Lepton-Pair Production in Ultrarelativistic Nuclear Collisions
    (Amer Physical Soc., 2005) Güçlu, Mehmet C.; Kovankaya, G.; Yılmaz, Melek
    We solve the perturbative electron-positron pair production exactly by calculating the second-order Feynman diagrams. We compare our result with Born methods that include Coulomb corrections. We find that a small-momentum approximation is not adequate to obtain exact Coulomb corrections and higher-order terms should also be included. We also compare the impact parameter dependence cross sections.