The width of the f meson, crossing sum rules and the pomeron

Journal Article · Tue Jan 01 04:00:00 EST 1974 · Nucl. Phys., B, v. B70, no. 1, pp. 141-153

DOI:https://doi.org/10.1016/0550-3213(74)90364-2· OSTI ID:4341266

Grassberger, P

Sum rules on pseudoscalar meson — meson scattering amplitudes in the physical region are studied. Our main conclusions are: (i) The too narrow width of the f meson obtained in dual models is related to the absence of a pomeron in these models and, vice versa, a pomeron may not be added to a crossing - symmetric amplitude without changing the f width. (ii) Numerically, a width of about 200 MeV, as found in a recent high-statistics ππ phase shift analysis, is preferred. (iii) The singlet/octet ratio for the tensor meson couplings is larger than predicted e.g. by the U(3) quark model.

• Research Organization: Univ., Bonn
• NSA Number: NSA-29-027984
• OSTI ID: 4341266
• Journal Information: Nucl. Phys., B, v. B70, no. 1, pp. 141-153, Journal Name: Nucl. Phys., B, v. B70, no. 1, pp. 141-153; ISSN NUPBB
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*F-1260 RESONANCES-- PARTICLE WIDTHS
*MESONS- - COUPLING
*PION-PION INTERACTIONS-- SCATTERING AMPLITUDES
*POMERANCHUK PARTICLES
CROSSING SYMMETRY
DUALITY
N64250* --Physics (High Energy)--Particle Interactions & Properties (Theoretical)--Strong (Baryon No. = 0)
OCTET MODEL
SU-3 GROUPS
SUM RULES
TENSORS