Angular distribution of the longitudinal [Formula Presented] spin correlation parameter [Formula Presented] at 197.4 MeV

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

Research output: Contribution to journalArticle

Abstract

A polarized proton beam with a large longitudinal polarization component of [Formula Presented] (96% of the total polarization) was prepared in a storage ring (IUCF–Cooler). This was achieved by means of spin precession solenoids in two of the six straight sections of the ring. A polarized hydrogen storage cell target internal to the ring was used to measure the longitudinal spin correlation coefficient [Formula Presented] in [Formula Presented] elastic scattering over the laboratory angular range [Formula Presented]–[Formula Presented]–[Formula Presented] with statistical errors of typically 0.025. The absolute normalization was determined to an accuracy of 2.0% by use of the identity [Formula Presented] at [Formula Presented] The identity also allows a reduction of the scale factor uncertainty of the previously published analyzing powers and spin correlation coefficients. The results are compared to recent [Formula Presented] partial wave analyses and [Formula Presented] potential models.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number5
DOIs
StatePublished - Jan 1 2000
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Lorentz, B., Haeberli, W., Rathmann, F., Wise, T., Doskow, J., Dzemidzic, M., Meyer, H. O., Pollock, R. E., von Przewoski, B., Rinckel, T., Sperisen, F., & Pancella, P. V. (2000). Angular distribution of the longitudinal [Formula Presented] spin correlation parameter [Formula Presented] at 197.4 MeV. Physical Review C - Nuclear Physics, 61(5). https://doi.org/10.1103/PhysRevC.61.054002