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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Publisher
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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Q2
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Q1
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Volume
72
Issue
2