Survey of A{sub LT'} asymmetries in semi-exclusive electron scattering on He4 and C12

Journal Article · Mon Feb 21 00:00:00 EST 2005 · Nuclear Physics A

OSTI ID:836613

Protopopescu, Dan

Single spin azimuthal asymmetries A{sub LT'} were measured at Jefferson Lab using 2.2 and 4.4 GeV longitudinally polarized electrons incident on {sup 4}He and {sup 12}C targets in the CLAS detector. A{sub LT'} is related to the imaginary part of the longitudinal-transverse interference and in quasifree nucleon knockout it provides an unambiguous signature for final state interactions (FSI). Experimental values of A{sub LT'} were found to be below 5%, typically |A{sub LT'}| < 3% for data with good statistical precision. Optical Model in Eikonal Approximation (OMEA) and Relativistic Multiple-Scattering Glauber Approximation (RMSGA) calculations are shown to be consistent with the measured asymmetries.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE; USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 836613
• Report Number(s): JLAB-PHY-04-235; DOE/ER/40150-3119; nucl-ex/0405021; TRN: US0500753
• Journal Information: Nuclear Physics A, Vol. 748; Other Information: PBD: 21 Feb 2005
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
EIKONAL APPROXIMATION
ELECTRONS
FINAL-STATE INTERACTIONS
MULTIPLE SCATTERING
NUCLEONS
OPTICAL MODELS
SCATTERING
SPIN
TARGETS