Measurement of the ratio of branching fractions B(D{sup 0}{yields}K{sup +}{pi}{sup -})/B(D{sup 0}{yields}K{sup -}{pi}{sup +}) using the CDF II detector
- University of Illinois, Urbana, Illinois 61801 (United States)
- University of Florida, Gainesville, Florida 32611 (United States)
We present a measurement of R{sub B}, the ratio of the branching fraction for the rare decay D{sup 0}{yields}K{sup +}{pi}{sup -} to that for the Cabibbo-favored decay D{sup 0}{yields}K{sup -}{pi}{sup +}. Charge-conjugate decays are implicitly included. A signal of 2005{+-}104 events for the decay D{sup 0}{yields}K{sup +}{pi}{sup -} is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35 fb{sup -1} produced in pp collisions at {radical}(s)=1.96 TeV. Assuming no mixing, we find R{sub B}=[4.05{+-}0.21(stat){+-}0.11(syst)]x10{sup -3}. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments.
- OSTI ID:
- 20869205
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevD.74.031109; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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