Chiral Perturbation Theory at Two Loops and the Measurement of $V_{us}$

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dc.creatorBijnens, Johan
dc.date2003-04-30
dc.date.accessioned2026-07-07T03:49:32Z
dc.date.available2026-07-07T03:49:32Z
dc.descriptionI give an overview of the calculations done in three-flavour Chiral perturbation theory at next-to-next-to-leading order with an emphasis on those relevant for an improvement in the accuracy of the measurement of $V_{us}$. It is pointed out that all needed low energy constants can be obtained from experiment via the scalar form-factor in $K_{\ell3}$ decays
dc.description4 pages, talk given at 38th Rencontres de Moriond on QCD and High-Energy Hadronic Interactions, Les Arcs, Savoie, France, 22-29 Mar 2003
dc.identifierhttps://arxiv.org/abs/hep-ph/0304284
dc.identifierhttp://arxiv.org/abs/hep-ph/0304284
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/42441
dc.subjectHigh Energy Physics - Phenomenology
dc.titleChiral Perturbation Theory at Two Loops and the Measurement of $V_{us}$
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