|Title:||B <inf>S</inf> Mixing and 2Φ <inf> B <inf>s</inf></inf>||Authors:||Hou, George W.S.||Issue Date:||1-Jan-2019||Source:||Springer Tracts in Modern Physics||Journal Volume:||233||Abstract:||
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature. There were two intriguing hints for New Physics at the B factories in the study of CP violation in b→ s transitions. ΔS, the difference in time-dependent CPV between charmless b→ sq¯ q modes and sin 2 ϕ 1 / β measured in the b→ cc¯ s modes, despite early promise, faded in experimental significance, and we await further scrutiny by Belle II. ΔA Kπ , the difference in direct CPV asymmetries in B + → K + π 0 versus B 0 → K + π - decays, is experimentally established, and it could indeed arise from New Physics CPV through the electroweak penguin amplitude. However, despite the challenge it poses to theoretical calculations, it appears that the color-suppressed amplitude is enhanced in a major and specific way so as to generate ΔA Kπ in (2.10 ).
|Appears in Collections:||物理學系|
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