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

Using fully reconstructed $B_{s}$ mesons, we measure exclusive branchingfractions for the decays $B_s \to D_s^{(*)+}D_s^{(*)-}$. The results are ${\calB}(B^0_s\ra D^+_s D^-_s)=(0.58\,^{+0.11}_{-0.09}\,\pm 0.13)%$, ${\calB}(B^0_s\ra D^{*\pm}_s D^{\mp}_s)=(1.8\, \pm 0.2\,\pm 0.4)%$, and ${\calB}(B^0_s\ra D^{*+}_s D^{*-}_s)=(2.0\,\pm 0.3\,\pm 0.5)%$; the sum is ${\calB}(B^0_s\ra D^{(*)+}_s D^{(*)-}_s)=(4.3\,\pm 0.4\,\pm 1.0)%$. Assuming thesedecay modes saturate decays to CP-even final states, the branching fractiondetermines the relative width difference between the $B_s$ CP-odd and CP-eveneigenstates. Taking \cp\ violation to be negligibly small, we obtain $\dgs/\gs= 0.090\,\pm 0.009\,{\rm(stat.)}\,\pm 0.022 \,{\rm (syst.)}$, where $\gs$ isthe mean decay width. The results are based on a data sample collected with theBelle detector at the KEKB $e^+ e^-$ collider running at the $\Upsilon(5S)$resonance with an integrated luminosity of 121.4 fb$^{-1}$.

Updated Measurement of ${\cal B}(B_s \to D_s^{(*)+}D_s^{(*)-})$ and Determination of $\Delta \Gamma_{s}$

Updated Measurement of ${\cal B}(B_s \to D_s^{()+}D_s^{()-})$ and Determination of $\Delta \Gamma_{s}$