Four-loop photon quark form factor and cusp anomalous dimension in the large-$N_c$ limit of QCD - INSPIRE

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Four-loop photon quark form factor and cusp anomalous dimension in the large- $N_c$ limit of QCD

Johannes Henn
(
- U. Mainz, PRISMA
)
,
Alexander V. Smirnov
(
- Lomonosov Moscow State U.
)
,
Vladimir A. Smirnov
(
- Karlsruhe U., TTP and
- SINP, Moscow
)
,
Matthias Steinhauser
(
- Karlsruhe U., TTP
)
,
Roman N. Lee
(
- Novosibirsk, IYF and
- Karlsruhe U., TTP
)

Dec 13, 2016

13 pages

Published in:

JHEP 03 (2017) 139

Published: Mar 27, 2017

e-Print:

1612.04389 [hep-ph]

DOI:

10.1007/JHEP03(2017)139

Report number:

TTP16-055,
MITP-16-144

View in:

ADS Abstract Service

reference search94 citations

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Abstract: (Springer)

We compute the four-loop QCD corrections to the massless quark-anti-quark-photon form factor F

_{q}

in the large-N

_{c}

limit. From the pole part we extract analytic expressions for the corresponding cusp and collinear anomalous dimensions.

Note:

12 pages; v2: author added, note added, references added, minor modifications

11.15.Bt
12.38.Bx
12.38.Cy
Perturbative QCD
Scattering Amplitudes
expansion 1/N: color
quantum chromodynamics: correction
anomalous dimension
form factor
photon quark

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Figures(4)

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