Constraints on the form factors for K→πlν and implications for |Vus|

Richard J. Hill

doi:10.1103/PhysRevD.74.096006

Constraints on the form factors for K→πlν and implications for |Vus|

Richard J. Hill

Physics And Astronomy

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Rigorous bounds are established for the expansion coefficients governing the shape of semileptonic K→π form factors. The constraints enforced by experimental data from τ→Kπν eliminate uncertainties associated with model parametrizations in the determination of |Vus|. The results support the validity of a powerful expansion that can be applied to other semileptonic transitions.

Original language	English
Article number	096006
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	74
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.74.096006
State	Published - 2006

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.74.096006

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abstract = "Rigorous bounds are established for the expansion coefficients governing the shape of semileptonic K→π form factors. The constraints enforced by experimental data from τ→Kπν eliminate uncertainties associated with model parametrizations in the determination of |Vus|. The results support the validity of a powerful expansion that can be applied to other semileptonic transitions.",

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Constraints on the form factors for K→πlν and implications for |Vus|

Abstract

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