Measurement of the form-factor ratios for D^+ -> \overline K^{*0}e^+\nu_e

et.al; Fermilab E791 Collaboration: E.M. Aitala

arxiv: hep-ph/9710216 · v1 · pith:BROD4W34new · submitted 1997-10-01 · ✦ hep-ph

Measurement of the form-factor ratios for D^+ -> overline K^(*0)e^+ν_e

Fermilab E791 Collaboration: E.M. Aitala , et.al This is my paper

classification ✦ hep-ph

keywords overlinemeasurementform-factorratiosapproximatelycharmdatadecay

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We present a measurement of the form-factor ratios r_V=V(0)/A_1(0) and r_2=A_2(0)/A_1(0) for the decay D^+ -> \overline K^{*0} e^+ \nu_e. The measurement is based on a signal of approximately 3000 $D^+ -> \overline K^{*0} e^+ \nu_e, \overline K^{*0} -> K^-\pi^+$ decays reconstructed in data from charm hadroproduction experiment E791 at Fermilab. The results are r_V = 1.84 +- 0.11 +- 0.08 and r_2 = 0.71 +- 0.08 +- 0.09.

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