Study of some B_s to f_0(980) decays in the fourth generation model

Abstract

We study some non leptonic and semileptonic decays of $B_s$ meson into a final scalar meson $f_0(980)$ in the fourth quark generation model. Since the $f_0(980)$ meson is dominantly composed of ($s\bar{s}$) pair, the mixing induced CP asymmetry in the decay mode $B_s\to J/\psi f_0(980)$ would {\it a priori} give $\sin 2{\beta }_s$, where ${\beta }_s$ is the $B_s-{\bar{B}}_s$ mixing phase. In the standard model this asymmetry is expected to be vanishingly small. We find that in the fourth generation model a large mixing induced CP asymmetry could be possible for this process. Similarly the branching ratios of the rare semileptonic decays $B_s\to f_0(980)l^{+}{l}^{-}$ and $B_s\to f_0(980)\nu \bar{\nu }$ are found to be enhanced significantly from their corresponding standard model values.

arXiv comment18 pages, 5 figures, minor changes in the text, added few references, to appear in Phys. Rev. D

References in corpus (36)

• Weak Decays Beyond Leading Logarithms
• Systematic approach to exclusive B ->V l^+l^-, V gamma decays
• Measurement of the Differential Branching Fraction and Forward-Backword Asymmetry for B->K(*)l+l-
• Resurrection of the Sigma Meson
• Lepton Polarization in the Decays $B\to X_s{\mu }^{+}{\mu }^{-}$ and $B\to X_s{\tau }^{+}{\tau }^{-}$
• New measurement of the K+ => pi+,nu,nubar branching ratio
• Insight into the Scalar Mesons from a Lattice Calculation
• Charmless hadronic B decays involving scalar mesons: Implications to the nature of light scalar mesons
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• First Flavor-Tagged Determination of Bounds on Mixing-Induced CP Violation in Bs -> J/psi phi Decays
• Charmless Hadronic Two-body Decays of B_u and B_d Mesons
• The fourth family: a simple explanation for the observed pattern of anomalies in B-CP asymmetries
• Angular Distributions in the Decays B -> K* l+l-
• S-waves and the Measurement of CP Violating Phases in Bs Decays
• Hadronic D Decays Involving Scalar Mesons
• SM with four generations: Selected implications for rare B and K decays
• First observation of Bs -> J/psi f0(980) decays
• $B_s\to f_0(980)$ form factors and $B_s$ decays into $f_0(980)$
• First Observation of PHI(1020)--->PI0+PI0+GAMMA Decay
• Patterns of Flavour Violation in the Presence of a Fourth Generation of Quarks and Leptons
• Observation of $B_s^0\to J/\psi f_0(980)$ and Evidence for $B_s^0\to J/\psi f_0(1370)$
• Flavor and CP Violation with Fourth Generations Revisited
• Probing the structure of $f_0(980)$ through radiative $\varphi$ decays
• Unparticle effect on B_s - \bar B_s mixing and its implications for B_s \to J/ψϕ, ϕϕdecays
• Effect of Fourth Generation CP Phase on b\to s Transitions
• The s-sbar and K-Kbar nature of f_0(980) in D_s decays
• Identifying the quark content of the isoscalar scalar mesons f_0(980), f_0(1370), and f_0(1500) from weak and electromagnetic processes
• $s\bar{s}$ dominance of the $f_0$(980) meson
• Scalar resonance effects on the B_s - \bar B_s mixing angle
• The Effects of Fourth Generation on the Total Branching Ratio and the Lepton Polarization in $Λ_b \rar Λ\ell^+ \ell^-$ decay
• Why the f(0)(980) is mostly ssbar
• Measurement of the angular and lifetime parameters of the decays $B_d^0\to J/\psi K^{\ast 0}$ and $B_s^0\to J/\psi \varphi$
• $B_s^0-{\bar{B}}_s^0$ mixing and $b\to s$ transitions in isosinglet down quark model
• Fourth generation effect on ${\Lambda }_b$ decays
• Radiative (phi -> f_0(980) gamma) decay in light cone QCD sum rules
• $B_s\to f_0(980)$ decays: Results from light-cone QCD Sum Rules

Cited by in corpus (3)

• Study of the rare $B_s^0$ and $B^0$ decays into the ${\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ final state
• Study of some rare decays of B_s meson in the fourth generation model
• $B \to K \etap$ decays in the SM with fourth generation fermions