APS » PROLA » Phys. Rev. Lett. » Volume 79 » Issue 20

Phys. Rev. Lett. 79, 3834 - 3836 (1997)

Beam Asymmetry of Coherent π° Photoproduction on 4He in the Δ(1232) Range Measured using Coherent Bremsstrahlung

Download: PDF (151 kB) or Buy this Article (Use Article Pack) Export: BibTeX or EndNote (RIS)

A. Kraus, O. Selke, F. Rambo, G. Galler, M. Schumacher, F. Smend, R. Wichmann, F. Wissmann, and S. Wolf
Zweites Physikalisches Institut, Universität Göttingen, D-37073 Göttingen, Germany

J. Ahrens, H. –J. Arends, R. Beck, and J. Peise
Institut für Kernphysik, Universität Mainz, D-55099 Mainz, Germany

Received 1 July 1997

Using coherent bremsstrahlung at MAMI (Mainz), the beam asymmetry of the differential cross sections for coherent π° photoproduction on 4He has been measured in the energy interval from 200 to 500 MeV at an angle of θlab  =  37°. The coherent ( γ,π°) reaction is used as a precise linear polarimeter for the first time. Agreement with predictions has been obtained on a ≳3% level of precision.


©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v79/p3834
DOI: 10.1103/PhysRevLett.79.3834
PACS: 25.20.Lj, 24.70.+s, 29.27.Hj

[ Abstract  |  Previous article  |  Next article  |  Issue 20 ]