Parity doubling of highly excited mesons

Details Parity doubling of highly excited mesons Parity doubling of highly excited mesons

2009-08-10

arxiv.org/abs/0908.1289v2

Phys.Lett.B680:297-300,2009

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 figures, 1 table. Further experimental detail added and additional algebra. Conclusions unchanged. To be published

Scientific paper

10.1016/j.physletb.2009.09.017

Glozman has proposed that highly excited mesons and baryons fall into parity doublets, and that the f4(2050) on the leading Regge trajectory should have a nearly degenerate J^{PC} = 4^{-+} partner. A re-analysis of Crystal Barrel data does not support this idea. A likely explanation is that centrifugal barriers on the leading trajectory allow formation of the L=J-1 states, but are too strong to allow L=J states. Two new polarisation experiments have the potential for major progress in meson spectroscopy.

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