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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Continuum Schwinger function methods for the strong-interaction bound-stateproblem are used to arrive at a unified set of parameter-free predictions forthe semileptonic $K\to \pi$, $D\to \pi, K$ and $D_s \to K$, $B_{(s)} \to\pi(K)$ transition form factors and the associated branching fractions. Theform factors are a leading source of uncertainty in all such calculations: ourresults agree quantitatively with available data and provide benchmarks for thehitherto unmeasured $D_s\to K^0$, $\bar B_s \to K^+$ form factors. The analysisdelivers a value of $|V_{cs}| = 0.974(10)$ and also predictions for allbranching fraction ratios in the pseudoscalar meson sector that can be used totest lepton flavour universality. Quantitative comparisons are provided betweenextant theory and the recent measurement of ${\cal B}_{B_s^0\to K^- \mu^+\nu_\mu}$. Here, further, refined measurements would be useful in moving towarda more accurate value of $|V_{ub}|$.

Semileptonic transitions: $B_{(s)} \to \pi(K)$; $D_s \to K$; $D\to \pi, K$; and $K\to \pi$