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Pentaquark Resonances from Collision Times

N. G. Kelkar, M. Nowakowski

hep-pharXiv:hep-ph/0412240

Abstract

Having successfully explored the existing relations between the S-matrix and collision times in scattering reactions to study the conventional baryon and meson resonances, the method is now extended to the exotic sector. To be specific, the collision time in various partial waves of K+ N elastic scattering is evaluated using phase shifts extracted from the K+ N --> K+ N data as well as from model dependent T-matrix solutions. We find several pentaquark resonances including some low-lying ones around 1.5 to 1.6 GeV in the P01, P03 and D03 partial waves of K+ N elastic scattering.

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