Experimental test of charge symmetry in n-p elastic scattering

Conference · Sat Jan 01 04:00:00 EST 1983 · AIP Conf. Proc.; (United States)

OSTI ID:6099732

Birchall, J; Davison, N E; Gubler, H P; Lee, W P; Svenne, J P; van Oers, W T.H.; Abegg, R; Miller, C A; Cairns, E B; Coombes, H

An experiment is described to investigate the isospin-mixing, charge-symmetry breaking component in the n-p interaction. The experiment measures the difference ..delta..A between the neutron and proton analyzing powers A/sub n/ and A/sub p/ in n-p elastic scattering at 500 MeV. The experiment consists of two interleaved phases in which polarized neutrons, respectively unpolarized neutrons are scattered from an unpolarized, respectively polarized proton target of the frozen spin type. Designed as a null measurement requiring no accurately known polarization standards, the experiment determines the difference in angle at which A/sub n/ and A/sub p/ cross through zero. It is intended to provide an unambiguous test of class IV charge-symmetry breaking effects to the level of ..delta..A approx. = 0.001, corresponding to a laboratory angle difference at zero crossing of approx.0.05/sup 0/. 6 references, 2 figures.

• Research Organization: Univ. of Manitoba, Winnipeg
• OSTI ID: 6099732
• Report Number(s): CONF-820941-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 95
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYZING POWER
ANGULAR MOMENTUM
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BEAMS
CHARGE DISTRIBUTION
CHARGED-PARTICLE REACTIONS
DATA
ELASTIC SCATTERING
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HIGH ENERGY PHYSICS
INFORMATION
INTERACTIONS
ISOSPIN
MAGNETIC MOMENTS
MEETINGS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
NUMERICAL DATA
ORIENTATION
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHYSICS
POLARIZED BEAMS
POLARIZED PRODUCTS
POLARIZED TARGETS
PROTON REACTIONS
SCATTERING
SPIN ORIENTATION
SYMMETRY
TARGETS