A Study of the decay D0 ---> K+ pi-
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- UC, Davis
- Rio de Janeiro, CBPF
- CINVESTAV, IPN
- Colorado U.
- Fermilab
- Frascati
- Illinois U., Urbana
- Indiana U.
- Korea U.
- INFN, Milan; Milan U.
- North Carolina U.
- Pavia U.; INFN, Pavia
- Puerto Rico U., Mayaguez
- South Carolina U.
- Tennessee U.
- Vanderbilt U.
- Wisconsin U., Madison
Using a large sample of photoproduced charm mesons from the FOCUS experiment at Fermilab (FNAL-E831), we observe the decay $$D^0\to K^+\pi^-$$ with a signal yield of $$149\pm31$$ events compared to a similarly cut sample consisting of $$36760 \pm 195$$ $$D^0\to K^-\pi^+$$ events. We use the observed ratio of $$D^0\to K^+\pi^-$$ to $$D^0\to K^-\pi^+$$ $$(0.404\pm 0.085\pm 0.025)%$$ to obtain a relationship between the $D^0$ mixing and doubly Cabibbo suppressed decay parameters.
- Research Organization:
- Frascati; Vanderbilt U.; Korea U.; UC, Davis; INFN, Milan; Tennessee U.; CINVESTAV, IPN; Indiana U.; South Carolina U.; Puerto Rico U., Mayaguez; Milan U.; Pavia U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); North Carolina U.; Colorado U.; Wisconsin U., Madison; Rio de Janeiro, CBPF; Illinois U., Urbana; INFN, Pavia
- Sponsoring Organization:
- US Department of Energy
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 2568742
- Report Number(s):
- FERMILAB-PUB-00-341-E; oai:inspirehep.net:539005; arXiv:hep-ex/0012048
- Journal Information:
- Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 86
- Country of Publication:
- United States
- Language:
- English
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