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nucl-th2004
Chiral Symmetry and N*(1440) -> N pi pi Decay
H. Kamano, M. Morishita, M. Arima
The N*(1440) -> N pi pi decay is studied by making use of the chiral reduction formula. This formula suggests a scalar-isoscalar pion-baryon contact interaction which is absent in…
hep-ph2004
Off-Shell Extension of the Chiral Reduction Formula
Hiroyuki Kamano
We present a proper off-mass-shell extension of the chiral reduction formula (CHRF) proposed by Yamagishi and Zaned. This is achieved by rewriting the CHRF in a manifestly consiste…