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

Fermilab E791 Collaboration·E. M. Aitala
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Abstract

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^+ ν_e. The measurement is based on a signal of approximately 3000 $D^+ -> \overline K^{*0} e^+ ν_e, \overline K^{*0} -> K^-π^+$ 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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Fermilab E791 Collaboration, E. M. Aitala. 1997-10-01. Measurement of the form-factor ratios for D^+ -> \overline K^{*0}e^+ν_e. https://doi.org/10.1103/physrevlett.80.1393

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