Prog. Theor. Phys. Vol. 89 No. 1 (1993) pp. 245-250

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Letters

S-Matrix Poles for Unstable-Particle Scattering

Norio Hoshizaki

Department of Nuclear Engineering, Faculty of Engineering, Kyoto University, Kyoto 606-01

(Received January 30, 1992)

Abstract:

We derive an S-matrix representation for scattering when a pole of unstable bound-state, virtual-state or resonance type lies close to the threshold for unstable-particle production. Behavior of the phase shifts in the neighborhood of the threshold is studied in relation to the nature of the pole of the S-matrix.

URL : http://ptp.ipap.jp/link?PTP/89/245/
DOI : 10.1143/PTP.89.245

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Citing Article(s) :

Progress of Theoretical Physics Vol. 89 No. 1 (1993) pp. 251-255 :
On 2⁺ Dibaryon in pp and \pid Scattering

Norio Hoshizaki
Progress of Theoretical Physics Vol. 89 No. 2 (1993) pp. 563-567 :
On 2⁺ Dibaryon in NΔ Scattering

Norio Hoshizaki
Progress of Theoretical Physics Vol. 89 No. 2 (1993) pp. 569-574 :
On S-Matrix Pole vs Cusp in pp Scattering near the NΔ-Threshold

Norio Hoshizaki