Analyzing powers for pi+- p polarized elastic scattering between 87-MeV and 263-MeV

Hofman, G. J.; Smith, G. R.; Ambardar, T.; Bonutti, Faustino; Brack, J. T.; Camerini, Paolo; Clark, J.; Delheij, P. P. J.; Farzanpay, F.; Felawka, L.; Fragiacomo, Enrico; Gibson, E. F.; Graeter, J.; Grion, N.; Kermani, M.; Mathie, E. L.; Meier, R.; Ottewell, D.; Peterson, R. J.; Ristinen, R. A.; Rui, Rinaldo; Sevior, M. E.; Staudenmaier, H.; Tacik, R.; Wagner, G. J.

doi:10.1103/PhysRevC.58.3484

Analyzing powers for πp elastic scattering were measured using the CHAOS spectrometer at energies spanning the Δ(1232) resonance. This work presents π+ data at the pion kinetic energies 117, 130, 139, 155, 169, 180, 193, 218, 241, and 267 MeV and π- data at 87, 117, 193, and 241 MeV, covering an angular range of 50°<~θc.m.<~180° at the higher energies and 90°<~θc.m.<~180° 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.

Titolo:	Analyzing powers for pi+- p polarized elastic scattering between 87-MeV and 263-MeV
Autori:	G. J. Hofman G. R. Smith T. Ambardar BONUTTI, FAUSTINO J. T. Brack CAMERINI, Paolo J. Clark P. P. J. Delheij F. Farzanpay L. Felawka FRAGIACOMO, ENRICO E. F. Gibson J. Graeter N. Grion M. Kermani E. L. Mathie R. Meier D. Ottewell R. J. Peterson R. A. Ristinen RUI, RINALDO M. E. Sevior H. Staudenmaier R. Tacik G. J. Wagner mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1998
Rivista:	PHYSICAL REVIEW. C, NUCLEAR PHYSICS
Abstract:	Analyzing powers for πp elastic scattering were measured using the CHAOS spectrometer at energies spanning the Δ(1232) resonance. This work presents π+ data at the pion kinetic energies 117, 130, 139, 155, 169, 180, 193, 218, 241, and 267 MeV and π- data at 87, 117, 193, and 241 MeV, covering an angular range of 50°<~θc.m.<~180° at the higher energies and 90°<~θc.m.<~180° 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.
Handle:	http://hdl.handle.net/11368/2558207
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevC.58.3484
Appare nelle tipologie:	1.1 Articolo in Rivista

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