Phys. Rev. Lett. 84, 2589 - 2592 (2000)Hard Exclusive Electroproduction of Decuplet Baryons in the Large Nc Limit |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
L. L. Frankfurt1, M. V. Polyakov2,3, M. Strikman4, and M. Vanderhaeghen5
1School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, Israel
2Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia
3Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany
4Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802
5Institut für Kernphysik, Johannes Gutenberg Universität, D-55099 Mainz, Germany
Received 16 November 1999
The cross sections and transverse spin asymmetries in the hard exclusive electroproduction of decuplet baryons are calculated in the large Nc limit and found to be comparable to that of octet baryons. Large Nc selection rules for the production amplitudes are derived, leading to new sensitive tests of the spin aspects of the QCD chiral dynamics both in the nonstrange and strange sectors. Importance of such studies for the reliable extraction of the pion form factor from pion electroproduction is explained.
©2000 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v84/p2589
DOI: 10.1103/PhysRevLett.84.2589
PACS: 12.38.Lg, 13.60.Fz, 13.60.Le
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