Radiative Decays of q bar q Chiral States in the U~(12)-Scheme

Details Radiative Decays of q bar q Chiral States in the U~(12)-Scheme Radiative Decays of q bar q Chiral States in the U~(12)-Scheme

2006-12-27

arxiv.org/abs/hep-ph/0612338v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, based on a talk presented at the IHEP Seminar on Perspectives for Studies of Chiral Particles at BES, Institute of H

Scientific paper

The radiative transitions between ground-states (GS) of light q bar q mesons are investigated in the U~(12)-scheme. In this scheme the rich decay-spectra are offered even in transition between GS due to the appearance of chiral states. As a result the radiative decay widths of the ordinary V -> P gamma process are well reproduced, and furthermore, the predicted width of b_{1}(1235) -> pi gamma process (Gamma_{theor}=229 keV), by assigning b_{1}(1235) as a member of the {}^{3}S_{1} chiral states A^{(E)}, is in good agreement with experimental one (Gamma_{exp} =230 +- 60 keV). From this results it is indicated that b_{1}(1235) meson, classified as {}^{1}P_{1} state in conventional non-relativistic (NR) classification scheme, is a good candidate of chiral state in the U~(12)-scheme. The other radiative transition widths of some chiral states are also predicted. Accordingly the predicted values given here, will provide useful insights in their search at BES.

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