Constraints on the width of tensor mesons from the crossing-symmetry principle of the strong interaction

Details Constraints on the width of tensor mesons from the crossing-symmetry principle of the strong interaction Constraints on the width of tensor mesons from the crossing-symmetry principle of the strong interaction

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apru15009l&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

I show that the Regge theory and the crossing-symmetry principle of the strong interaction can be used to predict the decay widths of several isoscalar tensor mesons. The full decay widths of the f_2(2010) and f_2(2150) mesons, as predicted by the theory, are in good agreement with the data. On the other hand, the theory predicts that the width of the ξ or f_J(2220) meson is at least 135 MeV, much greater than the reported 22 MeV [1]. Because a broad width of ξ is consistent with the non-observation of a narrow resonance structure in the mass region of 2220 MeV in the pbar-p experiment[2], repeating the measurements[1] of the width of the ξ will be of great value. References: [1] Review of Particle Physics, Euro. Phys. J15, 232 (2000). [2] K. K. Seth, Nucl. Phys. A675, 25c (2000).

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