Back to Search Start Over

Five-loop vacuum polarization in pQCD: O(αs4Nf2) results

Authors :
Jens H. Kuhn
K.G. Chetyrkin
P.A. Baikov
Source :
Nuclear Physics B - Proceedings Supplements. 116:78-82
Publication Year :
2003
Publisher :
Elsevier BV, 2003.

Abstract

We give a short presentation of the first genuine QCD five-loop calculations, viz. analytical contributions of order αs4nf2 and mq2αs4nf2 to the vacuum polarization function of vector currents. These corrections form an important gauge-invariant subset of the full O(αs4) correction to e+e− annihilation into hadrons.

Subjects

Subjects :
Quantum chromodynamics
Loop (topology)
Physics
Nuclear and High Energy Physics
Particle physics
Annihilation
High Energy Physics::Phenomenology
Hadron
Order (ring theory)
Vacuum polarization
Function (mathematics)
Atomic and Molecular Physics, and Optics

Details

ISSN :
09205632
Volume :
116
Database :
OpenAIRE
Journal :
Nuclear Physics B - Proceedings Supplements
Accession number :
edsair.doi...........90e8780164d2af76f2069b05ed9399db
Full Text :
https://doi.org/10.1016/s0920-5632(03)80148-2
Full Text Access
View/download PDF

Tools

Authors Abstract Subjects Details