A THREE-CHANNEL (pp, NƊ, πd) K-MATRIX ANALYSIS OF THE DIBARYON RESONANCES

N. Hiroshige , M. Kawasaki , K. Takabayashi , W. Watari , M. Yonezawa

A dibaryon-pole search in the complex energy plane has been performed for Jp = 2+ and 3- states in terms of the three channel (pp, NƊ, πd) K-matrix simulation of the pp-pp, pp-πd and πd-πd amplitudes of the phaseshift analysis. We have found the resonance poles in the mass region of NN(2170) for 2+ and of NN(2250) for 3-. One remarkable finding is small pp elasticities (≤ for 2+ and ≤ 0.04 for 3-).

Domaines: Articles anciens

N. Hiroshige, M. Kawasaki, K. Takabayashi, W. Watari, M. Yonezawa. A THREE-CHANNEL (pp, NƊ, πd) K-MATRIX ANALYSIS OF THE DIBARYON RESONANCES. Journal de Physique Colloques, 1985, 46 (C2), pp.C2-477-C2-478. ⟨10.1051/jphyscol:1985260⟩. ⟨jpa-00224577⟩