SOFFERS INEQUALITY IN THE QCD PARTON MODEL

Higher-order corrections (HOC) to Soffer's inequality between the vari ous parton distributions are determined within the QCD parton model. T he resulting inequality gives an upper bound to the transversity distr ibutions determined in the (M) over bar (S) over bar scheme; this boun d may be used in any process where transversity distributions enter. F or the u- and d-quarks, the HOC are negative and moderate in magnitude . For the sea quarks, the HOC are somewhat larger and also negative.