A Measurement of the Cabibbo suppressed decays D0 ---&gt; pi- pi+ and D0 ---&gt; K- K+

Frabetti, P. L.

doi:10.1016/0370-2693(94)90479-0

A Measurement of the Cabibbo suppressed decays D0 ---> pi- pi+ and D0 ---> K- K+

Journal Article · Sun Oct 31 23:00:00 EST 1993 · Phys.Lett.B

DOI:https://doi.org/10.1016/0370-2693(94)90479-0· OSTI ID:1893375

Frabetti, P. L.

We report a measurement of the relative branching ratio of two Cabibbo-suppressed decay modes: D 0 → π – π + and D 0 → K– K + . The data were accumulated in the 1990–1991 fixed target run of Fermilab high energy photoproduction experiment E687. The branching ratios of these modes relative to the Cabibbo-allowed decay D 0 → K – π + are also presented. The relative branching ratios are measured to be Γ ( D 0 → KK )/ Γ ( D 0 → ππ ) = 2.53 ± 0.46 ± 0.19, Γ ( D 0 → KK )/ Γ ( D 0 → Kπ ) = 0.109 ± 0.007 ± 0.009, and Γ ( D 0 → ππ )/ Γ ( D 0 → Kπ ) = 0.043 ± 0.007 ± 0.003.

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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:: E687

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893375

Report Number(s):: FERMILAB-PUB-93-361-E; oai:inspirehep.net:360546

Journal Information:: Phys.Lett.B, Journal Name: Phys.Lett.B Vol. 321

Country of Publication:: United States

Language:: English

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