THE E2 M1 RATIO IN DELTA-PHOTOPRODUCTION

Authors
SANDORFI AM BLANPIED G BLECHER M CARACAPPA A DJALALI C GIORDANO G HICKS K HOBLIT S KHANDAKER M KISTNER OC KUCZEWSKI A LOWRY M LUCAS M MATONE G MICELI L PREEDOM B REBREYEND D SCHAERF C SEALOCK RM STROHER H THORN CE THORNTON ST TONNISON J WHISNANT CS ZHANG H ZHAO X
Citation
Am. Sandorfi et al., THE E2 M1 RATIO IN DELTA-PHOTOPRODUCTION, Nuclear physics. A, 629(1-2), 1998, pp. 171-179
Citations number
35
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
629
Issue
1-2
Year of publication
1998
Pages
171 - 179
Database
ISI
SICI code
0375-9474(1998)629:1-2<171:TEMRID>2.0.ZU;2-9
Abstract
New high-precision measurements of p((gamma)over-right-arrow, pi) and p((gamma)over-right-arrow, gamma) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous an alysis of both reactions. Compton scattering has provided two importan t new constraints on the photo-pion amplitude. The E2/M1 mixing ratio for the N right-arrow Delta transition extracted from this analysis is EMR=-3.0%-/+0.3(stat+sys)-/+0.2(model).