Damping of ultrasoft fermions in finite temperature QED

A. Abada; K. Bouakaz; D. Deghiche

doi:10.1142/S021773230702124X

Damping of ultrasoft fermions in finite temperature QED

A. Abada
, K. Bouakaz
, D. Deghiche

Department of Physics

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

5 Citations (Scopus)

Abstract

We calculate the fermion damping rates to second order in powers of the external momentum in the context of QED at finite temperature using the hard-thermal-loop summation scheme. We find the coefficients of zeroth and first orders finite whereas that of second-order logarithmically infrared sensitive. The calculation is done in covariant gauge and the result is independent of gauge fixing.

Original language	English
Pages (from-to)	903-914
Number of pages	12
Journal	Modern Physics Letters A
Volume	22
Issue number	12
DOIs	https://doi.org/10.1142/S021773230702124X
Publication status	Published - Apr 20 2007

Keywords

Infrared sensitivity
QED hard thermal loops
Ultrasoft fermion damping

ASJC Scopus subject areas

Astronomy and Astrophysics
Nuclear and High Energy Physics

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10.1142/S021773230702124X

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title = "Damping of ultrasoft fermions in finite temperature QED",

abstract = "We calculate the fermion damping rates to second order in powers of the external momentum in the context of QED at finite temperature using the hard-thermal-loop summation scheme. We find the coefficients of zeroth and first orders finite whereas that of second-order logarithmically infrared sensitive. The calculation is done in covariant gauge and the result is independent of gauge fixing.",

keywords = "Infrared sensitivity, QED hard thermal loops, Ultrasoft fermion damping",

author = "A. Abada and K. Bouakaz and D. Deghiche",

note = "Funding Information: ★ Hagit Attiya is partially supported by the Israel Science Foundation (grant number 953/06). Alessia Milani is financed by ANR grant R-DISCOVER.",

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AU - Abada, A.

AU - Bouakaz, K.

AU - Deghiche, D.

N1 - Funding Information: ★ Hagit Attiya is partially supported by the Israel Science Foundation (grant number 953/06). Alessia Milani is financed by ANR grant R-DISCOVER.

PY - 2007/4/20

Y1 - 2007/4/20

N2 - We calculate the fermion damping rates to second order in powers of the external momentum in the context of QED at finite temperature using the hard-thermal-loop summation scheme. We find the coefficients of zeroth and first orders finite whereas that of second-order logarithmically infrared sensitive. The calculation is done in covariant gauge and the result is independent of gauge fixing.

AB - We calculate the fermion damping rates to second order in powers of the external momentum in the context of QED at finite temperature using the hard-thermal-loop summation scheme. We find the coefficients of zeroth and first orders finite whereas that of second-order logarithmically infrared sensitive. The calculation is done in covariant gauge and the result is independent of gauge fixing.

KW - Infrared sensitivity

KW - QED hard thermal loops

KW - Ultrasoft fermion damping

UR - https://www.scopus.com/pages/publications/34147106508

UR - https://www.scopus.com/pages/publications/34147106508#tab=citedBy

U2 - 10.1142/S021773230702124X

DO - 10.1142/S021773230702124X

M3 - Article

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EP - 914

JO - Modern Physics Letters A

JF - Modern Physics Letters A

IS - 12

ER -

Damping of ultrasoft fermions in finite temperature QED

Abstract

Keywords

ASJC Scopus subject areas

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