This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1007/s100520200891 in citations.
Please use the identifier: http://hdl.handle.net/2128/10726 in citations.
Electron-positron pair production in the external electromagnetic field of colliding relativistic heavy ions
Electron-positron pair production in the external electromagnetic field of colliding relativistic heavy ions
The results concerning the c(+)c(-) production in peripheral highly relativistic heavy-ion collisions presented in a recent paper by Baltz et al. are rederived in a very straightforward manner. It is shown that the solution of the Dirac equation directly leads to the multiplicity, i.e. to the total...
Saved in:
Personal Name(s): | Aste, A. |
---|---|
Baur, G. / Hencken, K. / Trautmann, D. / Scharf, G. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: | The @European physical journal / C, 23 (2002) S. 545 - 550 |
Imprint: |
Berlin
Springer
2002
|
Physical Description: |
545 - 550 |
DOI: |
10.1007/s100520200891 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
European Physical Journal C
23 |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10726 in citations.
The results concerning the c(+)c(-) production in peripheral highly relativistic heavy-ion collisions presented in a recent paper by Baltz et al. are rederived in a very straightforward manner. It is shown that the solution of the Dirac equation directly leads to the multiplicity, i.e. to the total number of electron-position pairs produced by the electromagnetic field of the ions, whereas the calculation of the single pair production probability is much more involved. A critical observation concerns the unsolved problem of seemingly absent Coulomb corrections (Bethe-Maximon corrections) in pair production cross sections. It is shown that neither the inclusion of the vacuum-vacuum amplitude nor the correct interpretation of the solution of the Dirac equation concerning the pair multiplicity is able the explain (from a fundamental point of view) the absence of Coulomb corrections. Therefore the contradiction has to be accounted to the treatment of the high energy limit. |