Perturbative renormalization of QED via flow equations

G. Keller; C. Kopper

doi:10.1016/0370-2693(91)91692-O

Perturbative renormalization of QED via flow equations

G. Keller
, C. Kopper

Research output: Contribution to journal › Article › peer-review

Abstract

We prove the perturbative renormalizability of euclidean QED₄ with a small photon mass in the framework of effective lagrangians due to Wilson and Polchinski. In particular we show that the QED Ward identities, which become violated by our momentum space regularization at intermediate stages, are restored in the renormalized theory.

Original language	English
Pages (from-to)	323-332
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	273
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(91)91692-O
Publication status	Published - 19 Dec 1991
Externally published	Yes

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title = "Perturbative renormalization of QED via flow equations",

abstract = "We prove the perturbative renormalizability of euclidean QED4 with a small photon mass in the framework of effective lagrangians due to Wilson and Polchinski. In particular we show that the QED Ward identities, which become violated by our momentum space regularization at intermediate stages, are restored in the renormalized theory.",

author = "G. Keller and C. Kopper",

year = "1991",

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AU - Kopper, C.

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AB - We prove the perturbative renormalizability of euclidean QED4 with a small photon mass in the framework of effective lagrangians due to Wilson and Polchinski. In particular we show that the QED Ward identities, which become violated by our momentum space regularization at intermediate stages, are restored in the renormalized theory.

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DO - 10.1016/0370-2693(91)91692-O

M3 - Article

AN - SCOPUS:4243866224

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VL - 273

SP - 323

EP - 332

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Perturbative renormalization of QED via flow equations

Abstract

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