Spin-1 resonance contributions to the weak Chiral Lagrangian: the vector field formulation

Details Spin-1 resonance contributions to the weak Chiral Lagrangian: the vector field formulation Spin-1 resonance contributions to the weak Chiral Lagrangian: the vector field formulation

1997-11-03

arxiv.org/abs/hep-ph/9711211v1

Nucl.Phys. B533 (1998) 494-522

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, plain LaTeX file, uses rotating.sty also included

Scientific paper

10.1016/S0550-3213(98)80010-2

We use the Vector formulation to evaluate vector and axial-vector exchange contributions to the O(p^4) weak Chiral Lagrangian. We recover in this framework the bulk of the contributions found previously by Ecker et al. in the antisymmetric formulation of vectors and axial-vectors, but new interesting features arise: i) most of our results are independent of Factorization and ii) novel contributions to non-leptonic kaon decays, proper of this formulation and phenomenologically interesting, are found. The phenomenological implications for K -> pi pi (pi) and radiative (anomalous and non-anomalous) non-leptonic kaon decays are thus investigated and found particularly relevant.

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