Abstract
We explore further applications of the twist-two quark interference fragmentation functions introduced earlier. We show that semi-inclusive production of two pions in the current fragmentation region in deep inelastic scattering of a longitudinally polarized electron on a longitudinally polarized nucleon can provide a probe of the valence quark spin (or helicity difference) distribution in the nucleon.
- Received 3 November 1997
DOI:https://doi.org/10.1103/PhysRevD.57.5920
©1998 American Physical Society