Measurement of the branching ratio B (D+ ---&gt; rho0 lepton+ lepton-neutrino) / B (D+ ---&gt; anti-K*0 lepton+ lepton-neutrino

Aitala, E. M.

doi:10.1016/S0370-2693(97)00194-9

Measurement of the branching ratio B (D+ ---> rho0 lepton+ lepton-neutrino) / B (D+ ---> anti-K*0 lepton+ lepton-neutrino

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Phys.Lett.B

DOI:https://doi.org/10.1016/S0370-2693(97)00194-9· OSTI ID:1893420

Aitala, E. M.

We report a measurement of the branching ratio B(D + → ϱ 0 ℓ + ν ℓ ) B(D + → K *0 ℓ + ν ℓ ) from the Fermilab charm hadroproduction experiment E791. Based on signals of 49 ± 17 events in the D + → ϱ 0 e + ν e mode and 54 ± 18 events in the D + → ϱ 0 μ + ν μ mode, we measure. B(D + → ϱ 0 e + ν e ) B(D + →$$\bar{K}^{*0}$$ e + ν e ) = 0.014 ± 0.014 ± 0.009, B(D + → ϱ 0 μ + ν μ ) B(D + →$$\bar{K}^{*0}$$ μ + ν μ ) = 0.051 ± 0.015 ± 0.009.Combining the results from both the electronic and muonic modes, we obtain B(D + → ϱ 0 ℓ + ν ℓ ) B(D + →$$\bar{K}^{*0}$$ ℓ + ν ℓ ) = 0.047 ± 0.013.This result is compared to theoretical predictions.

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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:: 1893420

Report Number(s):: FERMILAB-PUB-96-399-E; KSU-HEP-96-02; arXiv:hep-ex/9611002; oai:inspirehep.net:425444

Journal Information:: Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 397

Country of Publication:: United States

Language:: English

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