Parity violation in inelastic scattering of polarized electrons. [19. 4 and 22. 2 GeV, asymmetry, cross sections]

Conference · Sun Oct 01 00:00:00 EDT 1978

OSTI ID:6059765

Prescott, C Y

Parity nonconservation was observed in the inelastic scattering of longitudinally polarized electrons from an unpolarized deuterium target at 19.4 and 22.2 GeV. An asymmetry A = (sigma/sub R/ - sigma/sub L)/(sigma/sub R/ + sigma/sub L/) = (-9.5 +- 1.6) x 10/sup -5/ Q/sup 2/, Q/sup 2/ in (GeV/c)/sup 2/ was found for values of Q/sup 2/ near 1.4. The statistical and systematic errors are each about 9 percent of the measured asymmetry. This result is consistent with predictions from the standard Weinberg--Salam SU(2) x U(1) model. Using the simple quark-parton model of the nucleon, the value sin /sup 2/theta/sub W/ = 0.20 +- 0.03 is obtained. 21 references.

• Research Organization: Stanford Linear Accelerator Center, CA (USA)
• DOE Contract Number: EY-76-C-03-0515
• OSTI ID: 6059765
• Report Number(s): SLAC-PUB-2218; CONF-7806134-1; TRN: 79-012658
• Resource Relation: Conference: 6. Treiste conference on particle physics, Trieste, Italy, 26 Jun 1978
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-DEUTERON INTERACTIONS
P INVARIANCE
ASYMMETRY
CROSS SECTIONS
DATA COVARIANCES
EXPERIMENTAL DATA
GEV RANGE 10-100
GRAPHS
INELASTIC SCATTERING
PARTON MODEL
QUARK MODEL
WEINBERG-SALAM GAUGE MODEL
COMPOSITE MODELS
DATA
DATA FORMS
ENERGY RANGE
GEV RANGE
INFORMATION
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
MATHEMATICAL MODELS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
SCATTERING
UNIFIED GAUGE MODELS
645101* - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties