Analyzing powers for pi+- p polarized elastic scattering between 87-MeV and 263-MeV
- G. J. Hofman
- G. R. Smith
- T. Ambardar
- F. Bonutti
- J. T. Brack
- P. Camerini
- J. Clark
- P. P. J. Delheij
- F. Farzanpay
- L. Felawka
- E. Fragiacomo
- E. F. Gibson
- J. Graeter
- N. Grion
- M. Kermani
- E. L. Mathie
- R. Meier
- D. Ottewell
- R. J. Peterson
- R. A. Ristinen
- R. Rui
- M. E. Sevior
- H. Staudenmaier
- R. Tacik
- G. J. Wagner
DOIAbstract
Analyzing powers for \u3c0p elastic scattering were measured using the CHAOS spectrometer at energies spanning the \u394(1232) resonance. This work presents \u3c0+ data at the pion kinetic energies 117, 130, 139, 155, 169, 180, 193, 218, 241, and 267 MeV and \u3c0- data at 87, 117, 193, and 241 MeV, covering an angular range of 50\ub0<~\u3b8c.m.<~180\ub0 at the higher energies and 90\ub0<~\u3b8c.m.<~180\ub0 at the lower energies. Unique features of the spectrometer acceptance were employed to reduce systematic errors. Single-energy phase shift analyses indicate the resulting S11 and S31 phases favor the results of the SM95 phase shift analysis over that of the older KH80 analysis
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