Hard Exclusive Electroproduction of Decuplet Baryons in the Large N{sub c} Limit

Journal Article · Mon Mar 20 04:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.2589· OSTI ID:20215850

Frankfurt, L L ^[1]; Polyakov, M V ^[2]; Strikman, M ^[3]; Vanderhaeghen, M ^[4]

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1. School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv, (Israel)
2. Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia (Russian Federation)
3. Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
4. Institut fuer Kernphysik, Johannes Gutenberg Universitaet, D-55099 Mainz, (Germany)

The cross sections and transverse spin asymmetries in the hard exclusive electroproduction of decuplet baryons are calculated in the large N{sub c} limit and found to be comparable to that of octet baryons. Large N{sub c} 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. (c) 2000 The American Physical Society.

• OSTI ID: 20215850
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CROSS SECTIONS
ELECTROPRODUCTION
EXCLUSIVE INTERACTIONS
PIONS
QUANTUM CHROMODYNAMICS
SELECTION RULES
SPIN
THEORETICAL DATA