Electromagnetism in nonleptonic weak interactions

Details Electromagnetism in nonleptonic weak interactions Electromagnetism in nonleptonic weak interactions

2000-06-15

arxiv.org/abs/hep-ph/0006172v2

Nucl.Phys. B591 (2000) 419-434

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 1 figure; 2 references added, final version for publication in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(00)00568-X

We construct a low-energy effective field theory that permits the complete treatment of isospin-breaking effects in nonleptonic weak interactions to next-to-leading order. To this end, we enlarge the chiral Lagrangian describing strong and Delta S=1 weak interactions by including electromagnetic terms with the photon as additional dynamical degree of freedom. The complete and minimal list of local terms at next-to-leading order is given. We perform the one-loop renormalization at the level of the generating functional and specialize to K -> pi pi decays.

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