Measurement of the branching ratios Γ(Ds*+→Ds+π0)/ Γ(Ds*+→Ds+γ) and Γ(D*0→D0π0)/ Γ(D*0→D0γ)

Measurement of the branching ratios Γ(Ds*+→Ds+π0)/ Γ(Ds*+→Ds+γ) and Γ(D*0→D0π0)/ Γ(D*0→D0γ)

Data samples corresponding to the isospin-violating decay Ds*+→Ds+π0 and the decays Ds*+→Ds+γ, D*0→D0π0 and D*0→D0γ are reconstructed using 90.4 fb-1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- collider. The following branching ratios are extracted: Γ(Ds*+→Ds+π0)/Γ(Ds...

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Bibliografske podrobnosti
Main Authors: Aubert, B, Barate, R, Boutigny, D, Couderc, F, Karyotakis, Y, Lees, J, Poireau, V, Tisserand, V, Zghiche, A, Grauges, E, Palano, A, Pappagallo, M, Pompili, A, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Ofte, I, Stugu, B, Abrams, G, Battaglia, M, Breon, AB, Brown, D
Format: Journal article
Jezik:English
Izdano: 2005
Opis
Izvleček:Data samples corresponding to the isospin-violating decay Ds*+→Ds+π0 and the decays Ds*+→Ds+γ, D*0→D0π0 and D*0→D0γ are reconstructed using 90.4 fb-1 of data recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- collider. The following branching ratios are extracted: Γ(Ds*+→Ds+π0)/Γ(Ds*+→Ds+γ)=0. 062±0.005(stat.)±0.006(syst.) and Γ(D*0→D0π0)/ Γ(D*0→D0γ)=1.74±0.02(stat.)±0.13(syst.). Both measurements represent significant improvements over present world averages. © 2005 The American Physical Society.

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