Complete theory of radiative corrections to Kℓ3 decays and the Vus update
نویسندگان
چکیده
A bstract We fill up the missing piece in our own re-analysis of long-distance electromagnetic radiative corrections to semileptonic kaon decays by performing a rigorous study K → πμ + ν μ ( γ ) channels. With appropriate experimental and lattice inputs, we achieve precision level 10 − 4 these This is comparable previous analysis πe e this new result, present an updated global extract Standard Model parameter |V us | from decays. obtain = 0 . 22308(55) 22356(73), using average π transition form factor at N f 2 1 1, respectively.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2022
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep07(2022)071