Spin asymmetries for confined Dirac particles

Conference · Tue Jun 01 04:00:00 EDT 2004

OSTI ID:834543

Paris, Mark; Pandharipande, V R; Sick, Ingo

We study the Bjorken x (or equivalently Nachtmann {xi}) dependence of the virtual photon spin asymmetry in polarized deep inelastic scattering of electrons from hadrons. We use an exactly solved relativistic potential model of the hadron, treating the constituents as independent massless Dirac particles confined to an infinitely massive force center. The importance of including the p--wave components of the Dirac wave function is demonstrated. Comparisons are made to the observed data on the proton by taking into account the observed flavor dependence of the valence quark distribution functions.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 834543
• Report Number(s): JLAB-05-04-296; DOE/ER/40150/2982
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
DEEP INELASTIC SCATTERING
DISTRIBUTION FUNCTIONS
ELECTRONS
HADRONS
NUCLEONS
PHOTONS
PHYSICS
PROTONS
QUARKS
SPIN
VALENCE
WAVE FUNCTIONS