Light quark loops in K ± → π ± ν ν ¯ $$ {K}^{\pm}\to {\pi}^{\pm}\nu \overline{\nu} $$ from vector meson dominance and update on the Kaon Unitarity Triangle
Abstract We use vector meson dominance to calculate non-perturbative contributions to the branching ratio of the rare decay K ± → π ± ν ν ¯ $$ {K}^{\pm}\to {\pi}^{\pm}\nu \overline{\nu} $$ stemming from matrix elements involving up-quark loops. The importance of this observable as well as of K 0 → π...
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Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2024-12-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | https://doi.org/10.1007/JHEP12(2024)097 |
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