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

Within the QCD factorization formalism, we study the possible impacts of thenonuniversal $Z^\prime$ model, which provides a flavor-changing neutral currentat the tree level, on rare decays $B \to K_0^*\pi$. Under two differentscenarios (S1 and S2) for identifying the scalar meson $K_0^*(1430)$, thebranching ratios, CP asymmetries, and isospin asymmetries are calculated inboth the standard model (SM) and the family nonuniversal $Z^\prime$ model. Wefind that the branching ratios and CP asymmetries are sensitive to weakannihilation. In the SM, with $\rho_A=1$ and $\phi_A\in[-30^\circ, 30^\circ]$,the branching ratios of S1 (S2) are smaller (larger) than the experimentaldata. Adding the contribution of the $Z^\prime$ boson in two different cases(Case-I and Case-II), for S1, the branching ratios are still far away fromexperiment. For S2, in Case-II, the branching ratios become smaller and canaccommodate the data; in Case-I, although the center values are enhanced, theycan also explain the data with large uncertainties. Similar conclusions arealso reached for CP asymmetries. Our results indicate that S2 is more favoredthan S1, even after considering new physics effects. Moreover, if there existsa nonuniversal $Z^\prime$ boson, Case-II is preferred. All results can betested in the LHC-b experiment and forthcoming super-B factory.

Implications of Family Nonuniversal $Z^\prime$ Model on B -->K_0^* pi Decays