Abstract
The problem of the long life time of the pentaquark Θ+ is investigated on the basis of the color molecular dynamics simulation. We find that it takes a long time (typically of 50–100 fm/c) for the initial pentaquark state to rearrange its color and spatial positions to decay into the nucleon+kaon final state. Structure of the potential surface in the color and position spaces also supports this picture. Pentaquark wanders on the potential surface to find a narrow channel to decay.
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Maezawa, Y., Maruyama, T., Itagaki, N. et al. Wandering in color-space why is the life of pentaquark so long?. Acta Phys. Hung. A 22, 61–68 (2005). https://doi.org/10.1556/APH.22.2005.1-2.7
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DOI: https://doi.org/10.1556/APH.22.2005.1-2.7