Measurement ofp↑+p↑→p+p with a 16.5-GeV/cpolarized proton beam

Autor: R.L. Cummings, F.Z. Khiari, R. S. Raymond, R.J. Bruni, Thomas Roser, D. G. Crabb, P. R. Cameron, J. R. O'Fallon, L. C. Northcliffe, G. T. Danby, D. Peaslee, Kevin Brown, T. S. Bhatia, L. G. Ratner, Kent M. Terwilliger, M. Simonius, A. D. Krisch, Jay Roberts, A. M. T. Lin
Rok vydání: 1985
Předmět:
Zdroj: Physical Review D. 31:3017-3020
ISSN: 0556-2821
DOI: 10.1103/physrevd.31.3017
Popis: Using the new Brookhaven Alternating Gradient Synchrotron polarized proton beam and our polarized proton target, we measured the spin-spin correlation parameter A/sub n/n in 16.5-GeV/c proton-proton elastic scattering. We found an A/sub n/n of (6.1 +- 3.0)% at P/sub perpendicular/ /sup 2/ = 2.2 (GeV/c)/sup 2/. We also measured the analyzing power A in two independent ways, providing a good test of possible experimental errors. Comparing our new data with 12-GeV Argonne Zero Gradient Synchrotron data shows no evidence for strong energy dependence in A/sub n/n in this medium-P/sub perpendicular/ /sup 2/ region.
Databáze: OpenAIRE