The pionic beta decay in chiral perturbation theory

6533b859fe1ef96bd12b8157

RESEARCH PRODUCT

The pionic beta decay in chiral perturbation theory

Helmut Neufeld H. Pichl Marc Knecht Vincenzo Cirigliano

subject

Physics Particle physics Chiral perturbation theory Physics and Astronomy (miscellaneous)[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]010308 nuclear & particles physics High Energy Physics::Phenomenology FOS: Physical sciences Order (ring theory)Virtual particle 01 natural sciences Beta decay 3. Good health [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]0103 physical sciences Matrix element High Energy Physics::Experiment [PHYS.HTHE] Physics [physics]/High Energy Physics - Theory [hep-th]010306 general physics Engineering (miscellaneous)Lepton

description

Within the framework of chiral perturbation theory with virtual photons and leptons, we present an updated analysis of the pionic beta decay including all electromagnetic contributions of order e**2 p**2. We discuss the extraction of the Cabibbo-Kobayashi-Maskawa matrix element |Vud| from experimental data. The method employed here is consistent with the analogous treatment of the Kl3 decays and the determination of |Vus|.

year	journal	country	edition	language
2003-03-01

https://hal.archives-ouvertes.fr/hal-00002210

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