ASYMMETRIES FOR ELASTIC-SCATTERING OF PI(-3 AND THE DELTA-NEUTRON SPIN-SPIN INTERACTION() FROM POLARIZED HE)

Authors
ESPY MA DEHNHARD D EDWARDS CM PALARCZYK M LANGENBRUNNER JL DAVIS B BURLESON GR BLANCHARD S GIBBS WR LAIL B NELSON B PARK BK ZHAO Q CUMMINGS WJ DELHEIJ PPJ JENNINGS BK HENDERSON R HAUSSER O THIESSEN D BRASH E JONES MK LARSON B BRINKMOLLER B MAEDA K MORRIS CL ODONNELL JM PENTTILA S SWENSON D TUPA D BENNHOLD C KAMALOV SS
Citation
Ma. Espy et al., ASYMMETRIES FOR ELASTIC-SCATTERING OF PI(-3 AND THE DELTA-NEUTRON SPIN-SPIN INTERACTION() FROM POLARIZED HE), Physical review letters, 76(20), 1996, pp. 3667-3670
Citations number
28
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
20
Year of publication
1996
Pages
3667 - 3670
Database
ISI
SICI code
0031-9007(1996)76:20<3667:AFEOPA>2.0.ZU;2-#
Abstract
Asymmetries for pi(+) elastic scattering from polarized He-3 were meas ured across the Delta(1232) pi-nucleon resonance region at incident en ergies T-pi = 142, 180, and 256 MeV. Large discrepancies were found be tween the data and calculations that use the multiple scattering forma lism and Faddeev wave functions. Inclusion of a Delta-neutron spin-spi n interaction term in the calculations gives a greatly improved repres entation of the data.