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The K ℓ3 scalar form factors in the standard model

  • Regular Article - Theoretical Physics
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Abstract

We discuss the predictions of the standard model for the scalar form factors of K ℓ3 decays. Our analysis is based on the results of chiral perturbation theory, large N c estimates of low-energy couplings and dispersive methods. It includes a discussion of isospin-violating effects of strong and electromagnetic origin.

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Authors and Affiliations

  1. Fakultät für Physik, Universität Wien, Boltzmanngasse 5, 1090, Wien, Austria

    A. Kastner & H. Neufeld

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  1. A. Kastner
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  2. H. Neufeld
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Correspondence to H. Neufeld.

Additional information

This work was supported in part by EU Contract No. MRTN-CT-2006-035482, “FLAVIAnet”.

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Kastner, A., Neufeld, H. The K ℓ3 scalar form factors in the standard model. Eur. Phys. J. C 57, 541–556 (2008). https://doi.org/10.1140/epjc/s10052-008-0703-6

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  • DOI: https://doi.org/10.1140/epjc/s10052-008-0703-6

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