Measurement of the Polarized Structure Function sigma {sub LT'} for (p{rvec e},e'p) pi{sup 0} in the Delta (1232) Resonance Region

Journal Article · Thu May 01 00:00:00 EDT 2003

OSTI ID:811453

Joo, Kyungseon; Smith, L C; Burkert, V D; Minehart, R

The polarized longitudinal-transverse structure function {sigma}{sub LT'} has been measured for the first time in the {Delta}(1232) resonance region at Q{sup 2} = 0.40 and 0.65 GeV{sup 2}. Data for the p{rvec e},e'p {pi}{sup 0} reaction were taken at Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS) using longitudinally polarized electrons at an energy of 1.515 GeV. Evidence for interference between resonant and non-resonant amplitudes is discussed using a partial wave analysis. Comparison with previous beam asymmetry measurements at MAMI indicate a deviation from the predicted Q{sup 2} dependence of {sigma}{sub LT'} using recent phenomenological models.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 811453
• Report Number(s): JLAB-PHY-03-12; DOE/ER/40150-2504; nucl-ex/0301012; TRN: US0303161
• Resource Relation: Other Information: No journal information given for this preprint; PBD: 1 May 2003
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DELTA-1232 BARYONS
AMPLITUDES
ASYMMETRY
ELECTRON BEAMS
PARTIAL WAVES
RESONANCE
STRUCTURE FUNCTIONS
POLARIZED BEAMS