Study of f_0(980) and f_0(1500) from B_s \to f_0(980)π, f_0(1500)πDecays

Abstract

In this paper, we analyze the scalar mesons $f_0(980)$ and $f_0(1500)$ from the decays ${\bar{B}}_s^0\to f_0(980){\pi }^0,f_0(1500){\pi }^0$ within Perturbative QCD approach. From the leading order calculations, we find that (a) in the allowed mixing angle ranges, the branching ratio of ${\bar{B}}_s^0\to f_0(980){\pi }^0$ is about $(1.0\sim 1.6)\times 10^{-7}$, which is smaller than that of ${\bar{B}}_s^0\to f_0(980)K^0$ (the difference is a few times even one order); (b) the decay ${\bar{B}}_s^0\to f_0(1500){\pi }^0$ is better to distinguish between the lowest lying state or the first excited state for $f_0(1500)$, because the branching ratios for two scenarios have about one-order difference in most of the mixing angle ranges; and (c) the direct CP asymmetries of ${\bar{B}}_s^0\to f_0(1500){\pi }^0$ for two scenarios also exists great difference. In scenario II, the variation range of the value ${\mathcal{A}}_{CP}^{dir}({\bar{B}}_s^0\to f_0(1500){\pi }^0)$ according to the mixing angle is very small, except for the values corresponding to the mixing angles being near $90^{\circ }$ or $270^{\circ }$, while the variation range of ${\mathcal{A}}_{CP}^{dir}({\bar{B}}_s^0\to f_0(1500){\pi }^0)$ in scenario I is very large. Compared with the future data for the decay ${\bar{B}}_s^0\to f_0(1500){\pi }^0$, it is ease to determine the nature of the scalar meson $f_0(1500)$.

arXiv comment16 pages, 3 figures, Revtex

References in corpus (35)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Weak Decays Beyond Leading Logarithms
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Penguin Enhancement and $B\to K\pi$ decays in perturbative QCD
• Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil
• Branching Ratio and CP Violation of B to pi pi Decays in Perturbative QCD Approach
• Experimental Tests of Factorization in Charmless Non-Leptonic Two-Body B Decays
• Asymptotics of Heavy-Meson Form Factors
• The Uses of Conformal Symmetry in QCD
• Charmless hadronic B decays involving scalar mesons: Implications to the nature of light scalar mesons
• B to light meson transition form factors calculated in perturbative QCD approach
• Nonleptonic charmless B decays: factorization vs perturbative QCD
• Threshold resummation for exclusive B meson decays
• $B\to \pi \rho$, $\pi \omega$ Decays in Perturbative QCD Approach
• B meson light-cone distribution amplitudes in the heavy-quark limit
• Scalar Glueball, Scalar Quarkonia, and their Mixing
• B, D and K decays
• Hadronic D Decays Involving Scalar Mesons
• Nonfactorizable soft gluons in nonleptonic heavy meson decays
• Nature of the light scalar mesons
• Charmless B decays to a scalar meson and a vector meson
• Branching ratios and CP asymmetries of $B\to K{\eta }^{(\prime )}$ decays in the pQCD approach
• Twist-3 distribution amplitudes of scalar mesons from QCD sum rules
• Study of scalar mesons f_0(980) and f_0(1500) from $B\to f_0(980)K$ and $B\to f_0(1500)K$ Decays
• $B\to f_0(980)K$ Decays and Subleading Corrections
• Study of $K_0^{\ast }(1430)$ and $a_0(980)$ from $B\to K_0^{\ast }(1430)\pi$ and $B\to a_0(980)K$ Decays
• Transverse Momentum Distribution in the B Mesons in the Heavy-quark Limit: the Wandzura-Wilczek Part
• QCD sum rules and radial excitaions of light pseudoscalar and scalar mesons
• Evidence for two-quark content of $f_0(980)$ in exclusive $b\to c$ decays
• B Physics at LHCb
• $B\to f_0(980)K^{(\ast )}$ decays and final state interactions
• Study of scalar meson $a_0(980)$ from $B\to a_0(980)\pi$ Decays
• Probing new physics in B -> f_0(980) K decays
• $B \to f_0(980) (π,\etapp)$ Decays in the PQCD Approach
• Study of f_0(980) and f_0(1500) from B_s \to f_0(980)K, f_0(1500)K Decays

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