Coulomb corrections in the lepton-pair production in ultrarelativistic nuclear collisions -: art. no. 022724
PHYSICAL REVIEW A, cilt.72, sa.2, 2005 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 72 Sayı: 2
- Basım Tarihi: 2005
- Doi Numarası: 10.1103/physreva.72.022724
- Dergi Adı: PHYSICAL REVIEW A
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- İstanbul Kültür Üniversitesi Adresli: Hayır
Özet
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.