Isospin Breaking Effects in Kℓ4 Decays

Stoffer, Peter (2014). Isospin Breaking Effects in Kℓ4 Decays. European physical journal. C - particles and fields, 74(3), p. 2749. EDP Sciences 10.1140/epjc/s10052-014-2749-y

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In the framework of chiral perturbation theory with photons and leptons, the one-loop isospin-breaking effects in Kℓ4 decays due to both the photonic contribution and the quark and meson mass differences are computed. A comparison with the isospin-breaking corrections applied by recent high statistics Ke4 experiments is performed. The calculation can be used to correct the existing form factor measurements by isospin-breaking effects that have not yet been taken into account in the experimental analysis. Based on the present work, possible forthcoming experiments on Ke4 decays could correct the isospin breaking effects in a more consistent way.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Theoretical Physics
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)

UniBE Contributor:

Stoffer, Peter

Subjects:

500 Science > 530 Physics

ISSN:

1434-6044

Publisher:

EDP Sciences

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

22 Sep 2014 10:23

Last Modified:

26 Jun 2016 01:51

Publisher DOI:

10.1140/epjc/s10052-014-2749-y

BORIS DOI:

10.7892/boris.50792

URI:

https://boris.unibe.ch/id/eprint/50792

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