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 present a systematic light-cone QCD sum rule study of the exclusive rareradiative decay $\Lambda_b\rightarrow\Lambda\gamma$ and rare semileptonic decay$\Lambda_b\rightarrow\Lambda l^+l^-$ within the framework of the standardmodel. Although some LCSR studies on these rare processes can be found indifferent literatures, it is necessary to reanalyze them systematically for thereason that either the baryonic distribution amplitudes are improved ordifferent interpolating currents for the $\Lambda_b$ baryon may lead to quitedifferent results. In addition, the rare process$\Lambda_b\rightarrow\Lambda\gamma$ has not yet been analyzed by LCSR with theIoffe-type current. Taking all these reasons into account, we perform LCSRcalculations of both the processes with two types of interpolating currents.Our calculations show that the choice of the interpolating current for the$\Lambda_b$ baryon can affect the predictions significantly, especially for therare radiative decay process.

Improved Light-cone QCD Sum Rule Analysis Of The Rare Decays $\Lambda_b\rightarrow\Lambda\gamma$ And $\Lambda_b\rightarrow\Lambda l^+l^-$