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

A definite relative phase and amplitude exists between the doubly-Cabibbo-%suppressed amplitude for $D^0 \to \ko M^0$ and the Cabibbo-favored amplitudefor $D^0 \to \ok M^0$, where $M^0 = (\pi^0,\eta,\eta')$: $A(D^0 \to \ko M^0) =- \tan^2 \theta_C A(D^0 \to \ok M^0)$. Here $\theta_C$ is the Cabibbo angle.This relation, although previously recognized (for $M^0 = \pi^0$) as aconsequence of the U-spin subgroup of SU(3), is argued to be less sensitive tocorrections involving SU(3) breaking than related U-spin relations involvingcharged kaons or strange $D$ mesons. A corresponding relation between $D^+ \to\ko \pi^+$ and $D^+ \to \ok \pi^+$ is not predicted by U-spin. As aconsequence, one expects the asymmetry parameters $R(D^0,M^0) \equiv[\Gamma(D^0 \to K_S M^0) - \Gamma(D^0 \to K_L M^0)/[\Gamma(D^0 \to K_S M^0) +\Gamma(D^0 \to K_L M^0)]$ each to be equal to $2 \tan^2 \theta_C = 0.106$, inaccord with a recent CLEO measurement $R(D^0) \equiv R(D^0,\pi^0) = 0.122 \pm0.024 \pm 0.030$. No prediction for the corresponding ratio $R(D^+)$ ispossible on the basis of U-spin.Comment: 5 pages, 3 figures. Further references and text adde

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

Interference between doubly-Cabibbo-suppressed and Cabibbo-favored amplitudes in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msub><mml:mi>K</mml:mi><mml:mi>S</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>,</mml:mo><mml:mi>η</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>η</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mo …

Interference between doubly-Cabibbo-suppressed and Cabibbo-favored amplitudes inD0→KS(π0,η,η′