Study of semileptonic decays $B\to \pi l^{+}{l}^{-}$ and $B\to \rho l^{+}{l}^{-}$ in non-universal Z' model

Abstract

Semileptonic B meson decays induced by $b\to s(d)l^{+}{l}^{-}$ flavour changing neutral current (FCNC) transitions are very important to probe the quark-flavour sector of the standard model (SM) and also offer a probe to test new physics (NP). Although there exists a lot of precise results on $b\to s{l}^{+}{l}^{-}$ induced processes, there is lack of sufficient data for $b\to d{l}^{+}{l}^{-}$ induced decays. Here, we are interested to study $B\to \pi l^{+}{l}^{-}$ and $B\to \rho l^{+}{l}^{-}$ decays which proceed via $b\to d{l}^{+}{l}^{-}$ transition at the quark level. In this work, we investigate the differential branching ratio, forward-backward asymmetry, CP violation asymmetry and lepton polarization asymmetry in these two decay channels in a non-universal Z' model. We find a significant deviation from the SM value of these physical observables for these decays which provide a clear conjecture for NP arising from Z' gauge boson.

arXiv comment28 pages, 7 figures

References in corpus (82)

• Weak Decays Beyond Leading Logarithms
• Minimal Flavour Violation: an effective field theory approach
• The Physics of Heavy Z' Gauge Bosons
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
• Test of lepton universality with $B^0\to K^{\ast 0}{\ell }^{+}{\ell }^{-}$ decays
• Measurement of form-factor independent observables in the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• The Phenomenology of Extra Neutral Gauge Bosons
• Effective Hamiltonian for $B \ra X_s e^+ e^-$ Beyond Leading Logarithms in the NDR and HV Schemes
• Angular analysis of the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity
• One Leptoquark to Rule Them All: A Minimal Explanation for $R_{D^{(\ast )}}$, $R_K$ and $(g-2{)}_{\mu }$
• Explaining $h\to {\mu }^{\pm }{\tau }^{\mp }$, $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$ and $B\to K{\mu }^{+}{\mu }^{-}/B\to K{e}^{+}{e}^{-}$ in a two-Higgs-doublet model with gauged $L_{\mu }-L_{\tau }$
• Flavor Changing Effects in Theories with a Heavy Z' Boson with Family Non-Universal Couplings
• Differential branching fractions and isospin asymmetries of $B\to K^{(\ast )}{\mu }^{+}{\mu }^{-}$ decays
• Implications of Generalized Z-Z' Mixing
• Vector leptoquark resolution of $R_K$ and $R_{D^{(\ast )}}$ puzzles
• Angular analysis and differential branching fraction of the decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$
• Search for new high-mass phenomena in the dilepton final state using 36 fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Analysis of Neutral Higgs-Boson Contributions to the Decays B_s -> l^+l^- and B -> K l^+l^-
• Lepton Polarization in the Decays $B\to X_s{\mu }^{+}{\mu }^{-}$ and $B\to X_s{\tau }^{+}{\tau }^{-}$
• Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Leptophobic U(1)'s and the R_b - R_c Crisis
• On B -> V l l at small dilepton invariant mass, power corrections, and new physics
• Inclusive jet cross section in $\bar{p}p$ collisions at $\sqrt{s}=1.8$ TeV
• Lepton-flavour violating $B$ decays in generic $Z^{\prime }$ models
• $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays at large recoil in the Standard Model: a theoretical reappraisal
• An explicit Z'-boson explanation of the B->K*mu+mu- anomaly
• Searching for supersymmetry in rare B decays
• Angular analysis of the decay B0 to K*0 mu mu from pp collisions at sqrt(s) = 8 TeV
• $K_L\to {\pi }^0{e}^{+}{e}^{-}$ and $B\to X_s{\ell }^{+}{\ell }^{-}$ Decay in the MSSM
• Solution to the B -> pi K Puzzle in a Flavor-Changing Z' Model
• Search for high-mass resonances in dilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Z' Mediated Flavor Changing Neutral Currents in B Meson Decays
• QCD Sum Rule Analysis of the Decays $B\to K{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$
• Quark Singlets: Implications and Constraints
• Scalar leptoquarks and the rare B meson decays
• $\mu$-$e$ conversion in nuclei and Z${}^{\prime }$ physics
• The Promising Process to Distinguish Supersymmetric Models with Large tan$\beta$ from the Standard Model: $B\to X_s{\mu }^{+}{\mu }^{-}$
• QCD Corrections to B -> X_{d,s} nu nubar, B_{d,s} -> l^+l^-, K -> pi nu nubar and K_L -> mu^+ mu^- in the MSSM
• Tau Polarization Asymmetry in $B\to X_s{\tau }^{+}{\tau }^{-}$
• Angular analysis of $B^0\to K^{\ast }(892{)}^0{\ell }^{+}{\ell }^{-}$
• Probing a Very Narrow $Z^{\prime }$ Boson with CDF and D0 Data
• Classically conformal U(1)${}^{\prime }$ extended Standard Model and Higgs vacuum stability
• $b\to s$ Transitions in Family-dependent $U(1{)}^{\prime }$ Models
• Constraints on flavor-changing Z' models by B_s mixing, Z' production, and B_s -> μ^+ μ^-
• Family Non-universal $U(1{)}^{\prime }$ Gauge Symmetries and $b\to s$ Transitions
• B_s-anti-B_s Mixing in Z' Models with Flavor-Changing Neutral Currents
• CP Violation in the Decay B \to X_d e^+ e^-
• Resonances gone topsy turvy - the charm of QCD or new physics in $b\to s{\ell }^{+}{\ell }^{-}$?
• A Systematic Analysis of the Lepton Polarization Asymmetries in the Rare B Decay, B -> X_sτ^+τ^-
• First measurement of the differential branching fraction and $CP$ asymmetry of the $B^{\pm }\to {\pi }^{\pm }{\mu }^{+}{\mu }^{-}$ decay
• Single Top-Quark Production in Flavor-Changing Z' Models
• Large hadronic power corrections or new physics in the rare decay B-->K* mu+ mu- ?
• Study of the rare semileptonic decays $B_d^0\to K^{\ast }{l}^{+}{l}^{-}$ in scalar leptoquark model
• Flavor Changing Effects in Family Nonuniversal Z' Models
• Family Non-universal Z^\prime effects on \bar{B}_q-B_q$ mixing, B\to X_s μ^+μ^- and B_s\to μ^+μ^- Decays
• Nonuniversal $Z^{\prime }$ couplings in B decays
• General analysis of lepton polarizations in rare B -> K^* l^+ l^- decay beyond the standard model
• A reappraisal of constraints on $Z^{\prime }$ models from unitarity and direct searches at the LHC
• Exclusive B -> pi e^+ e^- and B -> rho e^+ e^-
• The Forward-Backward Asymmetry of B to (pi,K) l^+ l^-: Supersymmetry at Work
• B-meson dileptonic decays enhanced by supersymmetry with large $\tan \beta$
• B -> K1 l^+l^- Decays in a Family Non-universal Z' Model
• New physics effects to the lepton polarizations in the B -> K l^+ l^- decay
• Explaining B \to K pi anomaly with non-universal Z' boson
• CP Violation in the Exclusive Decays B -> pi e^+e^- and B -> rho e^+e^-
• Lepton polarization asymmetry in radiative dileptonic B-meson decays in MSSM
• τPolarization asymmetry in $B\to X_s{\tau }^{+}{\tau }^{-}$ in SUSY models with large $tan\beta$
• SUSY effects on the exclusive semi-leptonic decays $B\to \pi {\tau }^{+}{\tau }^{-}$ and $B\to \rho {\tau }^{+}{\tau }^{-}$
• Annihilation-Type Charmless Radiative Decays of B Meson in Non-universal Z^\prime Model
• Study of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ Decays in the Family Non-universal $Z^{\prime }$ Models
• The Prediction of Mass of Z'-Boson from $b_q^0-b_q^{0}bar$ Mixing
• Rare $B\to \pi l\bar{l}$ and $B\to \rho l\bar{l}$ decays in the relativistic quark model
• Improved constraints on the mixing and mass of $Z^{\prime }$ bosons from resonant diboson searches at the LHC at $\sqrt{s}=13$ TeV and predictions for Run II
• The exclusive \bar{B} --> πe^+ e^- and \bar{B} --> ρe^+ e^- decays in the two Higgs doublet model with flavor changing neutral currents
• The Effects of a Family Non-universal Z' Boson in the \bar{B}_s->πK, πK*, ρK Decays and B_d-\bar{B_d} mixing
• The exclusive $B\to \pi {\ell }^{+}{\ell }^{-}$ and $B\to \rho {\ell }^{+}{\ell }^{-}$ decays in the general two Higgs doublet model
• General analysis of CP violation in polarized (b -> d l^+ l^-) decay
• Predictions of Angular Observables for ${\bar{B}}_s\to K^{\ast }\ell \ell$ and $\bar{B}\to \rho \ell \ell$ in Standard Model
• Forward-Backward Asymmetry in $B\to X_d{e}^{+}{e}^{-}$
• T violation in ${\Lambda }_b\to \Lambda {\ell }^{+}{\ell }^{-}$ decays
• Longitudinal Polarization in $K_L\to {\mu }^{+}{\mu }^{-}$ in MSSM with large $tan\beta$

Cited by in corpus (4)

• Study of ${\bar{B}}_s\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ decays in the PQCD factorization approach with the lattice QCD input
• Implication of Z-mediated FCNC on semileptonic decays $B_s\to \varphi l^{+}{l}^{-}$ and $B^{+}\to K^{+}{l}^{+}{l}^{-}$
• A possible solution of $B$ arrow $\pi \pi$ puzzle in Z' model
• Study of Form Factors and Observables in $B_c^{-}\to {\bar{D}}^{(\ast )0}{\ell }^{-}{\bar{\nu }}_{\ell }$ and $B_c^{-}\to D^{(\ast )-}{\ell }^{+}{\ell }^{-}$ decays