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 analyze the semileptonic rare decays of $B$ meson to $K_{1} (1270)$ and$K_{1} (1400)$ axial vector mesons. The $B\to K_{1} (1270,1400) \ell^+ \ell^-$decays are significant flavor changing neutral current decays of the $B$ meson.These decays are sensitive to the new physics beyond SM, since these processesare forbidden at tree level at SM. These decays occurring at the quark levelvia $b\to s \ell^+ \ell^- $ transition, also provide new opportunities forcalculating the CKM matrix elements $V_{bt}$ and $V_{ts}$. In this study, thetransition form factors of the $B\to K_{1} (1270,1400) \ell^+ \ell^-$ decaysare calculated using three-point QCD sum rules approach. The resulting formfactors are used to estimate the branching fractions of these decays.

The Semileptonic $B$ to $K_1(1270,1400)$ Decays in QCD Sum Rules