Volume 81, Number 6, March 2008
|Number of page(s)||4|
|Section||The Physics of Elementary Particles and Fields|
|Published online||20 February 2008|
Bound-free pair production cross-section in heavy-ion colliders from the equivalent photon approach
Department of Physics, University of Basel - Klingelbergstrasse 82, 4056 Basel, Switzerland
Accepted: 22 January 2008
Exact calculations of the electron-positron pair production by a single photon in the Coulomb field of a nucleus with simultaneous capture of the electron into the K-shell are discussed for different nuclear charges. Using the equivalent photon method of Weizsäcker and Williams, a simple expression for the bound-free production of pairs by colliding very-high-energy fully stripped heavy ions is derived for nuclei of arbitrary charge.
PACS: 12.20.-m – Quantum electrodynamics / 25.75.-q – Relativistic heavy-ion collisions / 29.20.db – Storage rings and colliders
© EPLA, 2008
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