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APS » Journals » Phys. Rev. D » Volume 57 » Issue 9
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Phys. Rev. D 57, 5920–5922 (1998)

Interference fragmentation functions and valence quark spin distributions in the nucleon

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R. L. Jaffe
Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973

Xuemin Jin and Jian Tang
Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 3 November 1997; revised 23 January 1998; published in the issue dated 1 May 1998

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.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.57.5920
DOI:
10.1103/PhysRevD.57.5920
PACS:
13.87.Fh, 12.38.Bx, 13.75.Lb, 13.88.+e
 
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