Measurement of the Ratios of Form-factors in the Decay D(s)+ ---> phi e+ Electron-neutrino

CLEO Collaboration, , Avery, P., et al, and Britton, D.I. (1994) Measurement of the Ratios of Form-factors in the Decay D(s)+ ---> phi e+ Electron-neutrino. In: 27th International Conference on High-energy Physics (ICHEP 94), Glasgow, Scotland, 20-27 Jul 1994, (doi: 10.1016/0370-2693(94)90994-6)

Abstract

The dynamics of the decay D s + → φe + v e are studied using a sample of 474 events recorded by the CLEO II detector. A three dimensional fit to the decay angles and q 2 is performed to extract the ratios of form factors R 2 = A 2 (0)/ A 1 (0) and R v = V (0 )/ A 1 (0), where A 1 (0) and A 2 (0) are the two axial vector form factors and V (0) is the vector form factor evaluated at q 2 =0. By assuming the single pole parameterization for the form factors, we obtain: R 2 =1.4±0.5±0.3 and R v =0.9±0.6±0.3.

• Item Type: Conference Proceedings
• Additional Information: Phys.Lett. B 337 (1994) 405-410.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Britton, Professor David
• Authors: CLEO Collaboration, , Avery, P., et al, , and Britton, D.I.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Phys.Lett.B

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