Four-loop results for the cusp anomalous dimension

R. Brüser; A. G. Grozin; J. M. Henn; M. Stahlhofen

doi:10.22323/1.303.0018

Four-loop results for the cusp anomalous dimension

R. Brüser, A. G. Grozin, J. M. Henn, M. Stahlhofen

Research output: Contribution to journal › Conference article › peer-review

Abstract

We review the current status of calculations of the HQET field anomalous dimension and the cusp anomalous dimension. In particular, we give the results at 4 loops for the quartic Casimir contribution, and for the full QED case, up to φ⁶ in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.

Original language	English
Journal	Proceedings of Science
Volume	303
DOIs	https://doi.org/10.22323/1.303.0018
Publication status	Published - 1 Jan 2018
Event	2018 Loops and Legs in Quantum Field Theory, LL 2018 - St. Goar, Germany Duration: 29 Apr 2018 → 4 May 2018

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10.22323/1.303.0018

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title = "Four-loop results for the cusp anomalous dimension",

abstract = "We review the current status of calculations of the HQET field anomalous dimension and the cusp anomalous dimension. In particular, we give the results at 4 loops for the quartic Casimir contribution, and for the full QED case, up to φ6 in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.",

author = "R. Br{\"u}ser and Grozin, {A. G.} and Henn, {J. M.} and M. Stahlhofen",

year = "2018",

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AU - Brüser, R.

AU - Grozin, A. G.

AU - Henn, J. M.

AU - Stahlhofen, M.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - We review the current status of calculations of the HQET field anomalous dimension and the cusp anomalous dimension. In particular, we give the results at 4 loops for the quartic Casimir contribution, and for the full QED case, up to φ6 in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.

AB - We review the current status of calculations of the HQET field anomalous dimension and the cusp anomalous dimension. In particular, we give the results at 4 loops for the quartic Casimir contribution, and for the full QED case, up to φ6 in the small angle expansion. Furthermore, we discuss the leading terms in the anti-parallel lines limit at four loops.

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U2 - 10.22323/1.303.0018

DO - 10.22323/1.303.0018

M3 - Conference article

AN - SCOPUS:85073870939

VL - 303

JO - Proceedings of Science

JF - Proceedings of Science

SN - 1824-8039

T2 - 2018 Loops and Legs in Quantum Field Theory, LL 2018

Y2 - 29 April 2018 through 4 May 2018

ER -

Four-loop results for the cusp anomalous dimension

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