Coulomb Corrections in the Lepton-Pair Production in Ultrarelativistic Nuclear Collisions

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Date

2005

Authors

Güçlu, Mehmet C.
Kovankaya, G.
Yılmaz, Melek

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Amer Physical Soc.

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Abstract

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.

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3

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72

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2

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