ar X iv : h ep - p h / 01 01 02 4 v 1 3 J an 2 00 1 Interference pattern analysis in the decays φ → γπη and φ → γπ 0 π 0

2 00 1 Analysis of the nature of the φ → γπη and φ → γπ 0 π 0 decays

Analysis of the nature of the φ → γπη and φ → γπ 0 π 0 decays. Abstract We study interference patterns in the φ → (γa 0 + π 0 ρ) → γπη and φ → (γf 0 + π 0 ρ) → γπ 0 π 0 reactions. Taking into account the interference, we fit the experimental data and show that the background reaction does not distort the π 0 η spectrum in the decay φ → γπη everywhere over the energy region and does not distort ...

ar X iv : h ep - p h / 02 05 01 6 v 1 2 M ay 2 00 2 Scalar a 0 ( 980 ) meson in φ → π 0 ηγ decay

ar X iv : h ep - p h / 02 05 01 6 v 2 3 0 O ct 2 00 2 Scalar a 0 ( 980 ) meson in φ → π 0 ηγ decay

ar X iv : h ep - p h / 01 06 21 1 v 1 1 9 Ju n 20 01 Interference effects in the decay φ → π 0 π 0 γ and the coupling constant g

ar X iv : h ep - p h / 05 12 01 4 v 1 1 D ec 2 00 5 The Unitarity Triangle through B d → ρ ± π ∓ decays

gies for determining the Unitarity Triangle in these modes. Computing the penguin parameters (r±,φ±) and the ratio of two trees (rt ,φt ) within QCD factorization yields a precise determination of (ρ̄ , η̄), reflected by a weak dependence on φ±, which is shown to be a second order effect, as in the Bd → π+π− system. Moreover, we find that the dependence on penguin amplitudes r± in Bd → ρ±π∓ is le...