The Chiral-Odd Distribution Function h 1 : IR-Renormalon Contribution and α s -Correction
Abstract
The chiral-odd distribution function
h
1
is discussed in the framework of the renormalon approach. Using a bag-model calculation for
h
1
, 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. We also extract the perturbative corrections to the first moments of
h
1
.