Test of charge symmetry in n-p elastic scattering at 480 MeV

Conference · Thu Nov 15 04:00:00 EST 1984 · AIP Conf. Proc.; (United States)

OSTI ID:5773730

Abegg, R; Birchall, J; Cairns, E; Coombes, H; Davis, C A; Davison, N E; Delheij, P; Green, P W; Greeniaus, L G; Gubler, H P

An experiment to investigate the isospin-mixing charge-symmetry breaking component in the n-p interaction is under way at TRIUMF. 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 480 MeV. The experiment consists of two interleaved phases in which polarized (unpolarized) neutrons are scattered from an unpolarized (polarized) proton target of the frozen spin type. 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 intends to provide an unambiguous test of class IV charge-symmetry breaking effects to the level of ..delta..Aapprox. =0.001, corresponding to a laboratory angle difference at zero crossing of approx.0.04/sup 0/.

• Research Organization: TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C. V6T 2A3
• OSTI ID: 5773730
• Report Number(s): CONF-8405193-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 123:1
• Country of Publication: United States
• Language: English

Related Subjects

651220* -- Nuclear Properties & Reactions
A=1-5
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON REACTIONS
DEUTERIUM TARGET
ELASTIC SCATTERING
ENERGY RANGE
ENERGY SPECTRA
HADRON REACTIONS
INVARIANCE PRINCIPLES
ISOSPIN
MEV RANGE
MEV RANGE 100-1000
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE PROPERTIES
POLARIZED TARGETS
SCATTERING
SPECTRA
TARGETS