Search for CP violation in charged D meson decays
نویسندگان
چکیده
منابع مشابه
A pr 1 99 7 Search for CP Violation in Charged D Meson Decays
We report results of a search for CP violation in the singly Cabibbo-suppressed decays D → KKπ, φπ, K(892)0K+, and πππ based on data from the charm hadroproduction experiment E791 at Fermilab. We search for a difference in the D and D decay rates for each of the final states. No evidence for a difference is seen. The decay rate asymmetry parameters (ACP ), defined as the difference in the D and...
متن کاملSearch for CP violation in D 0 and D + decays
A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ → K−K+π+, D0 → K−K+ and D0 → π−π+. We have measured the following CP asymmetry parameters: ACP (K −K+π+) = +0.006± 0.011± 0.005, ACP (K −K+) = −0.001± 0.022± 0.015 and ACP (π −π+) = +0.048 ± 0.039 ± 0.025 where t...
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D0−D̄0 mixing at the detectable level or significant CP violation in the charm system may strongly signify the existence of new physics. In view of the large discovery potential associated with the fixed target experiments, the B-meson factories and the τ -charm factories, we make a further study of the phenomenology of D0 − D̄0 mixing and CP violation in neutral D-meson decays. The generic formu...
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The pattern of CP violation in the bottom sector is discussed. We introduce general techniques to expose new CPviolating effects in the cascade decays of B mesons. In the Kobayashi-Maskawa (KMj model, the CP asymmetries so obtained range from 2—20% for plausible values of the model parameters. This is to be compared with the small effects, of order 10 '-10 ', previously exhibited within this mo...
متن کاملSearch for CP-Violation in D→ π π π Decays
I have searched for a CP violating asymmetry in the neutral charm meson decay of D -> π 0 π 0 π 0 . I present here a brief description of CP violation and the CLEO II.V detector, the methods used to conduct this search, and the initial measured branching ratio of the studied decay, as well as the initial measured asymmetry of the final state of the decay. Background information: Symmetries and ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1997
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(97)00565-0