Angular distribution of the longitudinal p +(combining right arrow above)p + (combining right arrow above) spin correlation parameter Azz 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

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Abstract

A polarized proton beam with a large longitudinal polarization component of 0.545 ± 0.005 (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 Azz in pp elastic scattering over the laboratory angular range 5.5°-43.5° (θc.m. = 11.5°-90°) with statistical errors of typically 0.025. The absolute normalization was determined to an accuracy of 2.0% by use of the identity Ayy-Axx-Azz≡1 at θc.m. = 90°. 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 pp partial wave analyses and NN potential models.

Original languageEnglish (US)
Article number054002
Pages (from-to)540021-540029
Number of pages9
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number5
StatePublished - May 2000

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angular distribution
correlation coefficients
rings
polarization
solenoids
coolers
proton beams
precession
elastic scattering
hydrogen
cells

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Angular distribution of the longitudinal p +(combining right arrow above)p + (combining right arrow above) spin correlation parameter Azz at 197.4 MeV. / 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.

In: Physical Review C - Nuclear Physics, Vol. 61, No. 5, 054002, 05.2000, p. 540021-540029.

Research output: Contribution to journalArticle

Lorentz, B, Haeberli, W, Rathmann, F, Wise, T, Doskow, J, Dzemidzic, M, Meyer, HO, Pollock, RE, Von Przewoski, B, Rinckel, T, Sperisen, F & Pancella, PV 2000, 'Angular distribution of the longitudinal p +(combining right arrow above)p + (combining right arrow above) spin correlation parameter Azz at 197.4 MeV', Physical Review C - Nuclear Physics, vol. 61, no. 5, 054002, pp. 540021-540029.
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. / Angular distribution of the longitudinal p +(combining right arrow above)p + (combining right arrow above) spin correlation parameter Azz at 197.4 MeV. In: Physical Review C - Nuclear Physics. 2000 ; Vol. 61, No. 5. pp. 540021-540029.
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AU - Lorentz, B.

AU - Haeberli, W.

AU - Rathmann, F.

AU - Wise, T.

AU - Doskow, J.

AU - Dzemidzic, M.

AU - Meyer, H. O.

AU - Pollock, R. E.

AU - Von Przewoski, B.

AU - Rinckel, T.

AU - Sperisen, F.

AU - Pancella, P. V.

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AB - A polarized proton beam with a large longitudinal polarization component of 0.545 ± 0.005 (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 Azz in pp elastic scattering over the laboratory angular range 5.5°-43.5° (θc.m. = 11.5°-90°) with statistical errors of typically 0.025. The absolute normalization was determined to an accuracy of 2.0% by use of the identity Ayy-Axx-Azz≡1 at θc.m. = 90°. 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 pp partial wave analyses and NN potential models.

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