Measurement of the ratio of branching fractions <script type="math/tex">\mathcal{B}(D^{0}\rightarrow K^{+}\pi^{-})/\mathcal{B}(D^{0}\rightarrow K^{-}\pi^{+}</script> using the CDF II detector

Abulencia, A.; Van Remortel, N.; et al.

doi:10.1103/PHYSREVD.74.031109

Title

Measurement of the ratio of branching fractions $\mathcal{B}(D^{0}\rightarrow K^{+}\pi^{-})/\mathcal{B}(D^{0}\rightarrow K^{-}\pi^{+}$ using the CDF II detector

Author

Abulencia, A.

Van Remortel, N.

et al.

Institution/Organisation

CDF Collaboration

Abstract

e present a measurement of RB, the ratio of the branching fraction for the rare decay D0→K+π- to that for the Cabibbo-favored decay D0→K-π+. Charge-conjugate decays are implicitly included. A signal of 2005±104 events for the decay D0→K+π- is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35 fb-1 produced in p̅ p collisions at √s=1.96 TeV. Assuming no mixing, we find RB=[4.05±0.21(stat)±0.11(syst)]×10-3. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments.

Language

English

Source (journal)

Physical review : D : particles, fields, gravitation, and cosmology / American Physical Society. - Ridge, N.Y., 2004 - 2015

Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003

Publication

Ridge, N.Y. : American Physical Society , 2006

ISSN

1550-7998 [print]

1550-2368 [online]

DOI

10.1103/PHYSREVD.74.031109