BEAM ASYMMETRY OF COHERENT PI-DEGREES PHOTOPRODUCTION ON HE-4 IN THE DELTA(1232) RANGE MEASURED USING COHERENT BREMSSTRAHLUNG

Authors
KRAUS A SELKE O RAMBO F GALLER G SCHUMACHER M SMEND F WICHMANN R WISSMANN F WOLF S
Citation
A. Kraus et al., BEAM ASYMMETRY OF COHERENT PI-DEGREES PHOTOPRODUCTION ON HE-4 IN THE DELTA(1232) RANGE MEASURED USING COHERENT BREMSSTRAHLUNG, Physical review letters, 79(20), 1997, pp. 3834-3836
Citations number
18
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
20
Year of publication
1997
Pages
3834 - 3836
Database
ISI
SICI code
0031-9007(1997)79:20<3834:BAOCPP>2.0.ZU;2-Z
Abstract
Using coherent bremsstrahlung at MAMI (Mainz), the beam asymmetry of t he differential cross sections for coherent pi degrees photoproduction on He-4 has been measured in the energy interval from 200 to 500 MeV at an angle of theta(lab) = 37 degrees. The coherent (gamma, pi degree s) reaction is used as a precise linear polarimeter for the first time . Agreement with predictions has been obtained on a greater than or si milar to 3% level of precision.