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
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Abulencia-2012-Measurement of the ratio of branching.pdf
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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.
Date Issued
August 2006
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.74.031109
