Abstract
Using the experimentally measured values ofx=A 2(0)/A 1(0) andy=V(0)/A 1(0) and the measured ratiosR st=Γ(D + s →φl + ν l)/Γ(D + ins →φπ +) andR h=Γ(D + s →φρ +)/Γ(D + s →φπ +), we present evidence for significant nonfactorization contribution in the decay amplitude forD + s →φπ +. We analyze the role of nonfactorization inD + s →φρ + and conclude that present data onR h are consistent with factorization inD + s →φρ +. A measurement of polarization inD + s →φρ + would greatly assist our analysis.
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Kamal, A.N., Santra, A.B. Nonfactorization and the decaysD s +→φπ +,φρ + andφl + ν l . Z. Phys. C - Particles and Fields 71, 101–106 (1996). https://doi.org/10.1007/s002880050152
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DOI: https://doi.org/10.1007/s002880050152