Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-07
Eur.Phys.J.C20:333-342,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX2e, 22 pages, 8 figures (eps files), REDUCE program is available at http://wwwthep.physik.uni-mainz.de/Publications/progd
Scientific paper
10.1007/s100520100672
We calculate the HQET quark-gluon vertex at one loop, for arbitrary external
momenta, in an arbitrary covariant gauge and space-time dimension. Relevant
results and algorithms for the three-point HQET integrals are presented. We
also show how one can obtain the HQET limit directly from QCD results for the
quark-gluon vertex.
Davydychev Andrei I.
Grozin Andrey G.
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