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Measurement of the ratio of branching fractions B(D0→K +π -)/B(D0→K -π +) using the CDF II detector

Abulencia, A; Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; ... Zucchelli, S; + view all (2006) Measurement of the ratio of branching fractions B(D0→K +π -)/B(D0→K -π +) using the CDF II detector. Physical Review D , 74 (3) , Article 031109. 10.1103/PhysRevD.74.031109. Green open access

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Abstract

We present a measurement of R B , the ratio of the branching fraction for the rare decay D 0 → K + π − to that for the Cabibbo-favored decay D 0 → K − π + . Charge-conjugate decays are implicitly included. A signal of 2005 ± 104 events for the decay D 0 → 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 ¯ p p collisions at √ s = 1.96     TeV . Assuming no mixing, we find R B = [ 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.

Type: Article
Title: Measurement of the ratio of branching fractions B(D0→K +π -)/B(D0→K -π +) using the CDF II detector
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevD.74.031109
Publisher version: http://dx.doi.org/10.1103/PhysRevD.74.031109
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/132021
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