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HK: Physik der Hadronen und Kerne

HK 9: Poster Session: Theory

HK 9.20: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

Inequalities for the masses of the lightest ππ resonances in large N_c QCD — •M.V. Polyakov^1,2 and V.V. Vereshagin³ — ¹Petersburg Nuclear Physics Institute, 188350 Gatchina, Russia — ²Institute for Theoretical Physics II, Ruhr University Bochum, 44780 Bochum, Germany — ³Institute of Physics, St. Petersburg State University, 198504 St. Petersburg, Russia

We derive and analyse inequlities relating masses of the lightest ππ resonances (ρ and σ) to coupling constants of the effective chiral lagrangian in the limit of large number of colours.