A Master Formula for Chiral Symmetry Breaking


We derive a master formula for chiral SU(2)×SU(2) breaking, based on the VeltmanBell equations and the Peierls-Dyson relation. Our approach does not rely on the use of the soft pion limit or an expansion around the chiral limit, and yields exact results for on-shell pions. Threshold theorems for πN → πN , γN → πN , πN → ππN , γN → γπN , γN → ππN and πN… (More)


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