The renormalon contribution to the current product
M. Meyer-Hermann1 - A. Schäfer2
1 Institut für Theoretische Physik, TU Dresden, D-01062 Dresden, Germany
2 Fakultät Physik, Universität Regensburg, D-93040 Regensburg, Germany
Received: 9 November 1998 / Revised version: 22 January 1999 Communicated by W. Weise
The product of an axialvector and a scalar current and its relation to the chiral-odd distribution function h1 is discussed in the framework of the renormalon approach. Using a bag-model calculation for h1, we calculate its intrinsic uncertainty due to renormalon poles. The result is given as a function of Bjorken-x as well as for the first moments separately.
12.38.Lg Other nonperturbative calculations - 14.20.Dh Protons and neutrons - 13.85.Qk Inclusive production with identified leptons, photons, or other nonhadronic particles