English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Direct CP violation can occur in B-meson decays of the type b -> d+c+cbar,where the charm-anticharm pair forms a J/psi. The CP asymmetry requires thecontribution to the amplitude from decays into other states, which rescatterinto d+J/psi via final state interactions. In particular, states with the samequark content as d+J/psi can contribute. A perturbative calculation, based on aquark level description of the rescattering process, gives an asymmetry ofabout 1%, due to this effect. This makes it the dominant contribution to theasymmetry, as suggested by an earlier estimate, based on an hadronic picture.Comment: 11 pages, TRI-PP-94-2

More on directCPviolation inb→dJ/ψ decays