Measurement of the spin parameters A and Ann in pp elastic scattering in the 1–3 GeV/c region

D. A. Bell, J. A. Buchanan, M. M. Calkin, J. M. Clement, W. H. Dragoset, M. Furić, K. A. Johns, J. D. Lesikar, H. E. Miettinen, T. A. Mulera, G. S. Mutchler, G. C. Phillips, J. B. Roberts, S. E. Turpin

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


We have measured the asymmetry parameter A and the spin correlation parameter Ann in pp elastic scattering, using the Argonne ZGS polarized proton beam and a polarized proton target. Angular distributions of A and Ann for |t| ≳ 0.2 (GeV/c)2 were obtained at eight momenta between 1.10 and 2if2.75 GeV/c. We find significant structure in both the energy and t-dependence of Ann at these energies. At plab ≈ 1.34 GeV/c Ann reaches a very large value of about 0.8–0.9 near θcm = 90°.

Original languageEnglish (US)
Pages (from-to)310-314
Number of pages5
Journal"Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics"
Issue number3
StatePublished - Jan 1 1980
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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