Complete angular distribution measurements of [Formula Presented] spin correlation parameters [Formula Presented] and [Formula Presented] and analyzing power [Formula Presented] at 197.4 MeV

F. Rathmann, B. von Przewoski, W. A. Dezarn, J. Doskow, M. Dzemidzic, W. Haeberli, J. G. Hardie, B. Lorentz, H. O. Meyer, P. V. Pancella, R. E. Pollock, T. Rinckel, F. Sperisen, T. Wise

Research output: Contribution to journalArticle

48 Scopus citations

Abstract

Measurements of [Formula Presented] spin correlation coefficients [Formula Presented] and [Formula Presented] and analyzing power [Formula Presented] for [Formula Presented] elastic scattering at 197.4 MeV over the laboratory angular range 3.5 °–43.5 ° [Formula Presented] have been carried out. The typical statistical accuracy per 1[Formula Presented] angle bin is better than 0.02 for the [Formula Presented] and better than 0.005 for [Formula Presented] Systematic errors are negligible except for an overall normalization uncertainty of 2.5% for [Formula Presented] and 1.3% for [Formula Presented] The experiment makes use of a polarized hydrogen gas target internal to a proton storage ring (IUCF Cooler) and a circulating beam of polarized protons. The target polarization is switched in sign and direction [Formula Presented] every 2 s by reversing a weak guide field [Formula Presented] mT). Scattered and recoil protons are detected in coincidence by two sets of wire chambers, by scintillators, and by silicon-strip recoil detectors placed 5 cm from the proton beam. Analysis methods and comparison to recent [Formula Presented] partial-wave analyses and [Formula Presented] potential models are described.

Original languageEnglish (US)
Pages (from-to)658-673
Number of pages16
JournalPhysical Review C - Nuclear Physics
Volume58
Issue number2
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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