Abstract
A probability of electron-positron pair production by photons in strong nonuniform fields is derived by applying a model trajectory method in the frame of a semiclassical approach. In addition to the well known invariant field parameter {chi}, a new invariant parameter {nu} is introduced to characterize the nonuniformity of the field. For {nu}>>1, the obtained expression is reduced to the uniform-field approximation while it approaches the Bethe-Heitler formula for {nu}<<1. The pair production is predicted for relatively weak external fields where the uniform-field approximation gives no effect. The theory agrees well with the experimental results of crystal-assisted pair production.
Nitta, H;
Nagata, Y;
Onuki, S;
[1]
Khokonov, M Kh
[2]
- Department of Physics, Tokyo Gakugei University, Koganei, Tokyo 184-8501 (Japan)
- Department of Physics, Kabardino-Balkarian State University, 360004 Nalchik (Russian Federation)
Citation Formats
Nitta, H, Nagata, Y, Onuki, S, and Khokonov, M Kh.
Electron-positron pair production by photons in nonuniform strong fields.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.180407.
Nitta, H, Nagata, Y, Onuki, S, & Khokonov, M Kh.
Electron-positron pair production by photons in nonuniform strong fields.
United States.
https://doi.org/10.1103/PhysRevLett.93.180407
Nitta, H, Nagata, Y, Onuki, S, and Khokonov, M Kh.
2004.
"Electron-positron pair production by photons in nonuniform strong fields."
United States.
https://doi.org/10.1103/PhysRevLett.93.180407.
@misc{etde_20619267,
title = {Electron-positron pair production by photons in nonuniform strong fields}
author = {Nitta, H, Nagata, Y, Onuki, S, and Khokonov, M Kh}
abstractNote = {A probability of electron-positron pair production by photons in strong nonuniform fields is derived by applying a model trajectory method in the frame of a semiclassical approach. In addition to the well known invariant field parameter {chi}, a new invariant parameter {nu} is introduced to characterize the nonuniformity of the field. For {nu}>>1, the obtained expression is reduced to the uniform-field approximation while it approaches the Bethe-Heitler formula for {nu}<<1. The pair production is predicted for relatively weak external fields where the uniform-field approximation gives no effect. The theory agrees well with the experimental results of crystal-assisted pair production.}
doi = {10.1103/PhysRevLett.93.180407}
journal = []
issue = {18}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}
title = {Electron-positron pair production by photons in nonuniform strong fields}
author = {Nitta, H, Nagata, Y, Onuki, S, and Khokonov, M Kh}
abstractNote = {A probability of electron-positron pair production by photons in strong nonuniform fields is derived by applying a model trajectory method in the frame of a semiclassical approach. In addition to the well known invariant field parameter {chi}, a new invariant parameter {nu} is introduced to characterize the nonuniformity of the field. For {nu}>>1, the obtained expression is reduced to the uniform-field approximation while it approaches the Bethe-Heitler formula for {nu}<<1. The pair production is predicted for relatively weak external fields where the uniform-field approximation gives no effect. The theory agrees well with the experimental results of crystal-assisted pair production.}
doi = {10.1103/PhysRevLett.93.180407}
journal = []
issue = {18}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Oct}
}