@article{oai:tsukuba.repo.nii.ac.jp:00019597,
author = {青木, 愼也 and Aoki, Sinya and Balog, Janos and Weisz, Peter},
issue = {5},
journal = {Journal of high energy physics},
month = {May},
note = {We investigate the short distance behavior of nucleon-nucleon (NN) potentials defined through Bethe-Salpeter wave functions, by perturbatively calculating anomalous dimensions of 6-quark operators in QCD. Thanks to the asymptotic freedom of QCD, 1-loop computations give certain exact results for the potentials in the zero distance limit. In particular the functional form of the S-state central NN potential at short distance r is predicted to be a little weaker than r −2. On the other hand, due to the intriguing character of the anomalous dimension spectrum, perturbative considerations alone can not determine whether this potential is repulsive or attractive at short distances. A crude estimation suggests that the force at short distance is repulsive, as found numerically in lattice QCD. A similar behavior is found for the tensor potential.},
title = {Application of the operator product expansion to the short distance behavior of nuclear potentials},
volume = {2010},
year = {2010}
}