Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-10-11
Prog.Theor.Phys. 113 (2005) 1315-1366
Physics
High Energy Physics
High Energy Physics - Phenomenology
65 pages, 1 figure. Revised version:the complete second order perturbative calculations performed and two appendices added
Scientific paper
10.1143/PTP.113.1315
The Skyrme model is reconsidered from an effective theory point of view. From the most general chiral Lagrangian up to including terms of order $p^4$, $N_c$ and $\delta m^2$ ($\delta m\equiv m_s-m$), new interactions, which have never been considered before, appear upon collective coordinate quantization. We obtain the parameter set best fitted to the observed low-lying baryon masses, by performing the second order perturbative calculations with respect to $\delta m$. We calculate the masses and the decay widths of the other members of (mainly) anti-decuplet pentaquark states. The formula for the decay widths is reconsidered and its baryon mass dependence is clarified.
Harada Koji
Mitsunari Yohei
Yamashita Nao-aki
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