Final-state interaction phase difference inJ/ψ→ρηand ωη decays
نویسندگان
چکیده
منابع مشابه
Final - state interaction phase difference in J / ψ → ρη and ωη decays
Final-state interaction phase difference in J/ψ → ρη and ωη decays Abstract It is shown that the study of the ω − ρ 0 interference pattern in the J/ψ → (ρ 0 + ω)η → π + π − η decay provides evidence for the large (nearly 90 •) relative phase between the one-photon and the three-gluon decay amplitudes.
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Final-state interaction phase difference in J/ψ → ρη and ωη decays Abstract It is shown that the study of the ω − ρ 0 interference pattern in the J/ψ → (ρ 0 + ω)η → π + π − η decay provides the evidence for the large (nearly 90 •) relative phase between the one-photon and the three-gluon decay amplitudes.
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In this research the exclusive decay of is calculated by QCD factorization (QCDF) method and final state interaction (FSI). First, the decay is calculated via QCDF method. The result that is found by using the QCDF method is less than the experimental result. So FSI is considered to solve the decay. For this decay, via the exchange of mesons are chosen for the intermedi...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2000
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.61.117504