Apparatus for a measurement of charge symmetry breaking in np -> d pi(0)

Authors
Hutcheon, DA Abegg, R Auld, EG Churchman, RM Davis, CA Finlay, RM Green, PW Greeniaus, LG Henderson, R Jordan, DV Kellner, W Korkmaz, E Opper, AK O'Reilly, GV Porcelli, TA Reitzner, SD Sheffer, G Walden, PL Yen, S
Citation
Da. Hutcheon et al., Apparatus for a measurement of charge symmetry breaking in np -> d pi(0), NUCL INST A, 459(3), 2001, pp. 448-458
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
459
Issue
3
Year of publication
2001
Pages
448 - 458
Database
ISI
SICI code
0168-9002(20010301)459:3<448:AFAMOC>2.0.ZU;2-R
Abstract
TRIUMF experiment E704 is a study of Charge Symmetry Breaking in the reacti on np --> d pi (o). The observable is the forward-backward asymmetry in the centre-of-mass differential cross-section, predicted to be - 0.0035 at 5 M eV above threshold. As a check on the understanding of certain systematic e ffects the reaction pp --> d pi (+), which cannot have an asymmetry, is mea sured also. Similarly, neutron-proton elastic scattering is used to verify spectrometer acceptance. We describe the beams, target, and detectors devel oped for this experiment. (C) 2001 Elsevier Science B.V. All rights reserve d.