TY - JOUR
T1 - A new look at the pair-production width in a strong magnetic field
AU - Kao, Win-Fun
AU - Lin, Guey-Lin
AU - Tseng, Jie Jun
PY - 2000/12/7
Y1 - 2000/12/7
N2 - We reexamine the process γ → e+ + e- in a background magnetic field comparable to B(c) ≃ m(e)/2/e. This process is known to be non-perturbative in the magnetic-field strength. However, it can be shown that the moments of the above pair production width are proportional to the derivatives of photon polarization function at the zero energy, which is perturbative in B. Hence, the pair-production width can be easily obtained from the latter by the inverse Mellin transform. The implications of our approach are discussed. (C) 2000 Published by Elsevier Science B.V.
AB - We reexamine the process γ → e+ + e- in a background magnetic field comparable to B(c) ≃ m(e)/2/e. This process is known to be non-perturbative in the magnetic-field strength. However, it can be shown that the moments of the above pair production width are proportional to the derivatives of photon polarization function at the zero energy, which is perturbative in B. Hence, the pair-production width can be easily obtained from the latter by the inverse Mellin transform. The implications of our approach are discussed. (C) 2000 Published by Elsevier Science B.V.
UR - http://www.scopus.com/inward/record.url?scp=0034619860&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(00)01220-X
DO - 10.1016/S0370-2693(00)01220-X
M3 - Article
AN - SCOPUS:0034619860
VL - 495
SP - 105
EP - 113
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-2
ER -