Measurement of the form-factor ratios for D+ ---&gt; anti-K*0 e+ electron-neutrino

Aitala, E. M.

doi:10.1103/PhysRevLett.80.1393

Measurement of the form-factor ratios for D+ ---> anti-K*0 e+ electron-neutrino

Journal Article · Wed Oct 01 04:00:00 EDT 1997 · Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.80.1393· OSTI ID:1893501

Aitala, E. M.

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.

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: E791

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893501

Report Number(s):: FERMILAB-PUB-97-267; arXiv:hep-ph/9710216; oai:inspirehep.net:450819

Journal Information:: Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 80

Country of Publication:: United States

Language:: English

References (12)

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