Nonlinear Effective Lagrangian Treatment of 'Penguin' Interaction
May, 19844 pages
Published in:
- Phys.Lett.B 145 (1984) 113-116
- Published: 1984
Report number:
- Print-84-0651 (ECOLE POLY)
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Abstract: (Elsevier)
Using the non-linear effective lagrangian technique, we show explicitly that only derivative coupling is allowed for the K - π, K → 2π and K → 3π transitions induced by the ΔS = 1 Penguin operator of SVZ in agreement with chiral symmetry requirements. From a derivative coupling (3, 3 ) mass term and the SU(3) breaking effect for ƒ K /ƒ π , we estimate the strength of the Penguin interactions and find it too small to account for the ΔI = 1 2 amplitude.- CURRENT ALGEBRA: EFFECTIVE LAGRANGIANS
- K: NONLEPTONIC DECAY
- NONLEPTONIC DECAY: K
- SYMMETRY: CHIRAL
- SUM RULE
- ISOSPIN: SELECTION RULE
- SELECTION RULE: ISOSPIN
- SYMMETRY BREAKING: SU(3)
- EFFECT: NONPERTURBATIVE
- K --> 2PI
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