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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We argue that the observation of a sizable direct CP asymmetry A_{CP} in theinclusive decays B -> X_s gamma would be a clean signal of New Physics. In theStandard Model, A_{CP} can be calculated reliably and is found to be below 1%in magnitude. In extensions of the Standard Model with new CP-violatingcouplings, large CP asymmetries are possible without conflicting with theexperimental value of the branching ratio for the decays B -> X_s gamma. Inparticular, large asymmetries arise naturally in models with enhancedchromo-magnetic dipole operators. Some generic examples of such models areexplored and their implications for the semileptonic branching ratio and charmyield in B decays discussed.Comment: several references added and some numerical results updated to  include QED corrections (version to appear in Physical Review D

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Direct<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>CP</mml:mi></mml:math>violation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>X</mml:mi></mml:mrow><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi>γ</mml:mi></mml:math>decays as a…

DirectCPviolation inB→Xsγdecays as a…