The Formula of the Differential Cross Section for the Trident Production

Autor:	Akifumi Itano, S. Homma, K. Nishikawa, Masaki Hayashi
Rok vydání:	1974
Předmět:	Physics Field (physics) Mathematical analysis Diagram General Physics and Astronomy Propagator symbols.namesake Cross section (physics) Pair production Quantum mechanics symbols Coulomb Feynman diagram Quantum field theory
Zdroj:	Journal of the Physical Society of Japan. 36:1230-1235
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.36.1230
Popis:	The differential cross section for the lepton trident production in the Coulomb field of nucleus is calculated using a standard technique of quantum electrodynamics. Eight diagrams are taken into account in calculation. Cross section formula in the text is expressed in the form which is most suitable for any type of numerical calculation. Since the formula is expressed in order to make the calculation of individual diagram possible, one can easily evaluate the contribution of certain diagram to cross section at a given experimental geometry. Propagator terms are expressed separately from the others making the modification of this part possible. Numerical calculation of the formula at a given experimental geometry shows a complete agreement with the one of the formula derived independently by Henry.
Databáze:	OpenAIRE
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