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

With rapid growth of the database of the BES III and the proposed superflavor factory, measurement on the rare $\psi(2S)$ decays may be feasible,especially the weak decays into baryon final states. In this work we study thedecay rate of $\psi(2S)$ to $\Lambda_c+\overline{\Sigma^+}$ in the SM andphysics beyond the SM (here we use the unparticle model as an example). The QPCmodel is employed to describe the creation of a pair of $q\bar q$ from vacuum.We find that the rate of $\psi(2S)\rightarrow \Lambda_c+\overline{\Sigma^+}$ isat order of $10^{-10}$ in the SM, whereas the contribution of the unparticle istoo small to be substantial. Therefore if a large branching ratio is observed,it must be due to new physics beyond SM, but by no means the unparticle.

The decay rate of $\psi(2S)$ to $\Lambda_c+\bar{\Sigma^+}$ in SM and beyond