Study of scalar meson a 0 (980) from B → a 0 (980)π decays
نویسندگان
چکیده
منابع مشابه
Meson loops in the f 0 ( 980 ) and a 0 ( 980 ) radiative decays into ρ , ω
Meson loops in the f 0 (980) and a 0 (980) radiative decays into ρ, ω Abstract. We calculate the radiative decay widths of the a0(980) and f0(980) scalar mesons into ργ and ωγ considering the dynamically generated nature of these scalar resonances within the realm of the Chiral Unitary Approach. The main ingredient in the evaluation of the radiative width of the scalar mesons are the loops comi...
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The complementarity between Chiral Perturbation Theory and the Linear Sigma Model is exploited to study π0π0 production in φ radiative decays, where the effects of the f0(980) scalar resonance, and those of its more controversial σ(500) partner, should manifest via the φ → K+K−(γ) → π0π0γ decay chain. The recently reported data on φ → π0π0γ coming from the VEPP-2M e+e− collider in Novosibirsk a...
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We analyze three-body decays of and . Under the factorization approach, there are tree level diagrams for these decay modes and the transition matrix element of decay is factorized into a form factor multiplied by decay constant and form factor multiplied into weak vertices form factor. The transition matrix element of decay is also factorized into a form factor multiplied into weak vertic...
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B. Aubert, M. Bona, Y. Karyotakis, J. P. Lees, V. Poireau, E. Prencipe, X. Prudent, V. Tisserand, J. Garra Tico, E. Grauges, L. Lopez, A. Palano, M. Pappagallo, G. Eigen, B. Stugu, L. Sun, G. S. Abrams, M. Battaglia, D.N. Brown, R. N. Cahn, R. G. Jacobsen, L. T. Kerth, Yu. G. Kolomensky, G. Lynch, I. L. Osipenkov, M. T. Ronan,* K. Tackmann, T. Tanabe, C.M. Hawkes, N. Soni, A. T. Watson, H. Koch...
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A sample of Z0 decays containing b-flavoured hadrons is tagged using leptons, and events having precise proper time measurements are selected. These events are used to study Bs oscillations. The flavour (b or b̄) at decay is determined from the lepton charge while the flavour at production is determined from jet charge or the charge of a second lepton, where available. The experiment was not abl...
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ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2010
ISSN: 1674-1137
DOI: 10.1088/1674-1137/34/5/002