• Corpus ID: 117554324

Impact of Family Non-universal $Z^\prime$ Boson on Pure Annihilation $B_s \to \pi^+ \pi^-$ and $B_d \to K^+ K^-$ Decays

  title={Impact of Family Non-universal \$Z^\prime\$ Boson on Pure Annihilation \$B\_s \to \pi^+ \pi^-\$ and \$B\_d \to K^+ K^-\$ Decays},
  author={Ying Li and Wenlve Wang and Dongshuo Du and Zuohong Li and Hong-xia Xu},
  journal={arXiv: High Energy Physics - Phenomenology},
We study the $B_s \to \pi^+ \pi^-$ and $B_d \to K^+ K^-$ decays in the standard model and the family non-universal $Z^\prime$ model. Since none of the quarks in final states is the same as the initial quark, these decay modes can occur only via power-suppressed annihilation diagrams. Despite the consistence of the standard model prediction with the available data, there is a surviving room for a light $Z^\prime$ boson. Taking into account the $Z^\prime$ contribution, we find theoretical results… 
3 Citations

Figures from this paper

LHCb anomaly and B physics in flavored Z ' models with flavored Higgs doublets
We study an extended Standard Model with a gauged U(1)$^{\prime}$ flavor symmetry, motivated not only by the fermion mass hierarchy but also by the excesses in $B \to K^{(*)} l l$ reported by the
Observation of the Annihilation Decay Mode B^{0}→K^{+}K^{-}.
A search for the B^{0}→K^{+}K^{-} decay is performed using pp-collision data collected by LHCb, and this decay is observed for the first time, with a significance of more than 5 standard deviations.
Study of Quasi-two-body $B_{(s)}\to \phi (f_0(980)/f_2(1270)\to)\pi\pi$ Decays in Perturbative QCD Approach
In 2017, LHCb collaboration reported their first observation of the rare decays $B_s \to \phi (f_0(980)$ $/f_2(1270) \to ) \pi^+\pi^-$ and the evidence of $B^0 \to


Flavor dependence of annihilation parameters in QCD factorization
For $B_{d,s} \to \pi^\mp K^\pm$ and $K^{(\ast)} K^{(\ast)}$ decays, the flavor symmetry breaking effects may be particularly small since the final state interactions should be the same between the
Revisiting the pure annihilation decays B s →π + π - and B 0 →K + K - : The data and the perturbative QCD predictions
In this work, we recalculate the charmless pure annihilation decays $B_s\to \pi^+ \pi^-$ and $B^0 \to K^+ K^-$ by using the perturbative QCD (pQCD) factorization approach, and compare the pQCD
Revisiting the Annihilation Corrections in Non-leptonic $\bar{B}_s^0$ Decays within QCD Factorization
Motivated by the recent measurements of non-leptonic $\bar{B}_s^0$ decays by CDF and LHCb collaborations, especially the large ${\cal B}(\bar{B}_s^0\to\pi^+\pi^-)$, we revisit the hard spectator and
$B \to K^{\ast} l^+ l^-$, $K l^+ l^-$ decays in a family non-universal $Z^{\prime}$ model
Motivated by the observed forward-backward asymmetry in $B\to K^{\ast} l^+ l^-$ decay, we perform a detailed analysis of this decay mode within a family non-universal $Z^{\prime}$ model. With the
Family Non-universal $U(1)^\prime$ Gauge Symmetries and $b\to s$ Transitions
We present a correlated analysis for the $\Delta B =1, 2$ processes which occur via $b\to s$ transitions within models with a family non-universal $U(1)^\prime$. We take a model-independent approach,
Implications of family nonuniversalZ′model onB→K0*(1430)πdecays
Within the QCD factorization formalism, we study the possible impacts of the nonuniversal $Z^\prime$ model, which provides a flavor-changing neutral current at the tree level, on rare decays $B \to
The physics of heavy Z' gauge bosons
The $\mathrm{U}{(1)}^{\ensuremath{'}}$ symmetry associated with a possible heavy ${Z}^{\ensuremath{'}}$ would have profound implications for particle physics and cosmology. The motivations for such
QCD Factorization for Charmless Hadronic B_s Decays Revisited
Branching fractions and $CP$-violating asymmetries of charmless ${\overline{B}}_{s}\ensuremath{\rightarrow}PP$, $VP$, $VV$ decays ($P$ and $V$ denoting pseudoscalar and vector mesons, respectively)
Flavor changing effects in theories with a heavy Z ′ boson with family nonuniversal couplings
There are theoretical and phenomenological motivations that there may exist additional heavy ${Z}^{\ensuremath{'}}$ bosons with family nonuniversal couplings. Flavor mixing in the quark and lepton