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Studies of Nucleon Spin Structure at HERMES

Tipton, Bryan (2000) Studies of Nucleon Spin Structure at HERMES. In: Symmetries in Subatomic Physics. AIP Conference Proceedings. No.539. American Institute of Physics, , Melville, N.Y. , pp. 217-227. ISBN 1-56396-964-5

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The HERMES experiment studies the spin structure of the nucleon using polarized semi-inclusive deep-inelastic positron scattering and polarized quasi-real photoproduction. Previous analyses of nucleon spin structure combine inclusive deep-inelastic scattering data and measured hyperon decay constants assuming SU(3)_(flavor) symmetry; asymmetries in the processes studied at HERMES may constrain nucleon spin structure more directly. Results are discussed for quark polarizations extracted from semi-inclusive deep-inelastic scattering asymmetries, for gluon polarization extracted from the asymmetry of high-p_T hadron pairs, and for the first observation of single-spin azimuthal asymmetries in pion production.

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Additional Information:© 2000 American Institute of Physics. Issue Date: 17 October 2000. The author would like to acknowledge the support of the U.S. National Science Foundation.
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Subject Keywords:baryon spin, nucleons, electron-nucleon scattering, deep inelastic scattering, polarisation in elementary particle interactions, quarks, gluons
Classification Code:PACS: 14.20.Dh; 13.88.+e; 13.60.Hb
Record Number:CaltechAUTHORS:20111216-072656666
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Official Citation:Studies of nucleon spin structure at HERMES Bryan Tipton HERMES collaboration, AIP Conf. Proc. 539, 217 (2000), DOI:10.1063/1.1330922
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28481
Deposited By: Ruth Sustaita
Deposited On:16 Dec 2011 17:00
Last Modified:26 Dec 2012 14:37

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