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

We report results from a search for the lepton flavor violating decays$B^0_{(s)}\to e^+\mu^-$, and the flavor-changing neutral-current decays$B^0_{(s)} \to e^+ e^-$. The analysis uses data corresponding to ${\rm 2fb^{-1}}$ of integrated luminosity of $p \bar{p}$ collisions at $\sqrt{s}=1.96{\rm TeV}$ collected with the upgraded Collider Detector (CDF II) at theFermilab Tevatron. The observed number of $B^0_{(s)}$ candidates is consistentwith background expectations. The resulting Bayesian upper limits on thebranching ratios at 90% credibility level are $\mathcal{B}(B^0_s \toe^{+}\mu^{-}) < 2.0 \times 10^{-7}$, $\mathcal{B}(B^0 \to e^{+}\mu^{-})< 6.4\times 10^{-8}$, $\mathcal{B}(B^0_s \to e^{+}\mu^{-}) < 2.0 \times 10^{-7}$ and$\mathcal{B}(B^0 \to e^{+}\mu^{-})< 6.4 \times 10^{-8}$. From the limits on$\mathcal{B} (B^0_{(s)}\to e^+\mu^-)$, the following lower bounds on thePati-Salam leptoquark masses are also derived: ${M_{LQ}}(B^0_s\to e^+ \mu^-) >47.8 {\rm TeV/c^2}$, and ${M_{LQ}}(B^0\to e^+ \mu^-) > 59.3 {\rm TeV/c^2}$, at90% credibility level.

Search for the Decays ${B^0_{(s)}\to e^+\mu^-}$ and ${B^0_{(s)}\to e^+e^-}$ in CDF Run II