One-loop QED vertex in any covariant gauge: Its complete analytic form
| العنوان: | One-loop QED vertex in any covariant gauge: Its complete analytic form |
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| المؤلفون: | M. Reenders, Michael R. Pennington, Ayşe Kızılersü |
| المصدر: | Physical review. D, Particles and fields. 52(2) |
| سنة النشر: | 1995 |
| مصطلحات موضوعية: | Vertex (graph theory), Physics, Loop (graph theory), High Energy Physics::Lattice, High Energy Physics::Phenomenology, FOS: Physical sciences, Vertex function, Gauge (firearms), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Quantum mechanics, Elementary function, Covariant transformation, Gauge theory, Analytic function, Mathematical physics |
| الوصف: | The one loop vertex in QED is calculated in arbitrary covariant gauges as an analytic function of its momenta. The vertex is decomposed into a longitudinal part, that is fully responsible for ensuring the Ward and Ward-Takahashi identities are satisfied, and a transverse part. The transverse part is decomposed into 8 independent components each being separately free of kinematic singularities in $\bf any$ covariant gauge in a basis that modifies that proposed by Ball and Chiu. Analytic expressions for all 11 components of the ${O(\alpha)}$ vertex are given explicitly in terms of elementary functions and one Spence function. These results greatly simplify in particular kinematic regimes. Comment: 35 pages, latex, 2 figures, Complete postscript file available from: ftp://cpt1.dur.ac.uk/pub/preprints/dtp95/dtp9506/dtp9406.ps |
| تدمد: | 0556-2821 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff446a28163781883a236d8fd33cca3c https://pubmed.ncbi.nlm.nih.gov/10019339 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....ff446a28163781883a236d8fd33cca3c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 05562821 |
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