APS » PROLA » Phys. Rev. C » Volume 68 » Issue 2

Phys. Rev. C 68, 021603 (2003) [5 pages]

π0-η meson mixing in pd3Hπ+/3Heπ0 reactions
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M. Abdel-Bary et al.
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Rapid Communication Received 3 June 2003; published 22 August 2003

Beam momentum dependence of the experimental cross sections for pd3Hπ+/3Heπ0 reactions have been studied at large proton-pion relative angle. The measurements were performed for five beam momenta in the region of the η meson production threshold. Observed behavior of the measured cross sections ratio reveals manifestations of the isospin symmetry breaking effects. A simple model allows one to interpret the isospin symmetry breaking in terms of π0-η meson mixing. Based on that model analysis of the experimental results leads to the mixing angle value of 0.006±0.005 rad.


©2003 The American Physical Society

URL: http://link.aps.org/abstract/PRC/v68/e021603
DOI: 10.1103/PhysRevC.68.021603
PACS: 24.80.+y, 11.30.Er, 13.75.Lb, 14.40.-n

* Electronic address: magiera@if.uj.edu.pl

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