A family of unitary higher order equations
A scalar field obeying a Lorentz invariant higher order wave equation, is minimally coupled to the electromagnetic field. The propagator and vertex factors for the Feynman diagrams, are determined. As an example we write down the matrix element for the Compton effect. This matrix element is algebrai...
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1997
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0217751X_v12_n16_p2915_Bollini http://hdl.handle.net/20.500.12110/paper_0217751X_v12_n16_p2915_Bollini |
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paper:paper_0217751X_v12_n16_p2915_Bollini2023-06-08T15:21:06Z A family of unitary higher order equations A scalar field obeying a Lorentz invariant higher order wave equation, is minimally coupled to the electromagnetic field. The propagator and vertex factors for the Feynman diagrams, are determined. As an example we write down the matrix element for the Compton effect. This matrix element is algebraically reduced to the usual one for a charged Klein-Gordon particle. It is proven that the nth order theory is equivalent to n independent second order theories. It is also shown that the higher order theory is both renormalizable and unitary for arbitrary n. © World Scientific Publishing Company. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0217751X_v12_n16_p2915_Bollini http://hdl.handle.net/20.500.12110/paper_0217751X_v12_n16_p2915_Bollini |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
description |
A scalar field obeying a Lorentz invariant higher order wave equation, is minimally coupled to the electromagnetic field. The propagator and vertex factors for the Feynman diagrams, are determined. As an example we write down the matrix element for the Compton effect. This matrix element is algebraically reduced to the usual one for a charged Klein-Gordon particle. It is proven that the nth order theory is equivalent to n independent second order theories. It is also shown that the higher order theory is both renormalizable and unitary for arbitrary n. © World Scientific Publishing Company. |
title |
A family of unitary higher order equations |
spellingShingle |
A family of unitary higher order equations |
title_short |
A family of unitary higher order equations |
title_full |
A family of unitary higher order equations |
title_fullStr |
A family of unitary higher order equations |
title_full_unstemmed |
A family of unitary higher order equations |
title_sort |
family of unitary higher order equations |
publishDate |
1997 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0217751X_v12_n16_p2915_Bollini http://hdl.handle.net/20.500.12110/paper_0217751X_v12_n16_p2915_Bollini |
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1768543750021185536 |