Final state interaction accounts for the large $SU(3)_f$ violations in the non leptonic decays of the charmed pseudoscalar mesons into two light pseudoscalars .
This gives information for the phases of the amplitudes proportional to $\sin{(\theta)_C}$ and on the CP violating asymmetries, which depend on two parameters in the framework of the standard model.
To agree with the present experimental infomation one needs a large value of the parameter, which is expected to be small as a consequence of the Zweig selection rule, which would imply smaller values for the three more recent measurements of the CP violating asymmetries at $LHC_b$.
Volume 463 -
Corfu Summer Institute 2023 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2023) -
Workshop on the Standard Model and Beyond
CP violating asymmetries in $D^0 \rightarrow PP$ decays
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Published on:
July 31, 2024
Abstract
DOI: https://doi.org/10.22323/1.463.0073
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.