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Measurement of the ratio of branching fractions B(D[superscript 0]→K[superscript +]π[superscript -])/B(D[supersctip 0]→K[superscript -]π[superscript +]) using the CDF II detector

Author(s)
Belloni, Alberto; Bolshov, Arkadiy; Iyutin, Boris; Klute, Markus; Knuteson, Bruce O.; Kravchenko, I.; Noto, Leonardo Y.; Miles, J.; Nahn, Steven; Paus, Christoph M. E.; Rakitin, A.; Tether, S.; Bauer, Gerry P; Sumorok, Konstanty C; ... Show more Show less
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Abstract
We present a measurement of R[subscript B], the ratio of the branching fraction for the rare decay D[superscript 0]→K[superscript +]π[superscript -] to that for the Cabibbo-favored decay D[superscript 0]→K[superscript +]π[superscript -]. Charge-conjugate decays are implicitly included. A signal of 2005±104 events for the decay D[superscript 0]→K[superscript +]π[superscript -] is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35  fb[superscript -1] produced in p̅ p collisions at √s=1.96  TeV. Assuming no mixing, we find R[subscript B]=[4.05±0.21(stat)±0.11(syst)]×10[superscript -3]. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments.
Date issued
2006-08
URI
http://hdl.handle.net/1721.1/75769
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Abulencia, A. et al. “Measurement of the ratio of branching fractions B(D[superscript 0]→K[superscript +]π[superscript -])/B(D[supersctip 0]→K[superscript -]π[superscript +]) using the CDF II detector.” Physical Review D 74.3 (2006). © 2006 The American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918

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