Next-to-Leading Order perturbative QCD corrections to baryon correlators in matter

Groote, S.; Körner, J. G.; Pivovarov, A. A.

Next-to-Leading Order perturbative QCD corrections to baryon correlators in matter

Authors

Groote, S.

Körner, J. G.

Pivovarov, A. A.

Description

We compute the next-to-leading order perturbative QCD corrections to the correlators of nucleon interpolating currents in relativistic nuclear matter. The main new result is the calculation of the O(alpha_s) perturbative corrections to the coefficient functions of the vector quark condensate in matter. This condensate appears in matter due to the violation of Lorentz invariance. The NLO perturbative QCD corrections turn out to be large which implies that the NLO corrections must be included in a sum rule analysis of the properties of both bound nucleons and relativistic nuclear matter.
19 pages in LaTeX, including 5 Postscript figures