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Evidence for D-0-(D)over-bar(0) mixing
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Babar Collaboration (Including:
). (2007) Evidence for D-0-(D)over-bar(0) mixing. Physical Review Letters, Vol.98 (No.21). Article: 211802. doi:10.1103/PhysRevLett.98.211802 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.98.211802
Abstract
We present evidence for D-0-(D) over bar (0) mixing in D-0 -> K+pi(-) decays from 384 fb(-1) of e(+)e(-) colliding-beam data recorded near root s=10.6 GeV with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. We find the mixing parameters x('2)=[-0.22 +/- 0.30(stat)+/- 0.21(syst)]x10(-3) and y(')=[9.7 +/- 4.4(stat)+/- 3.1(syst)]x10(-3) and a correlation between them of -0.95. This result is inconsistent with the no-mixing hypothesis with a significance of 3.9 standard deviations. We measure R-D, the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates, to be [0.303 +/- 0.016(stat)+/- 0.010(syst)]%. We find no evidence for CP violation.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 25 May 2007 | ||||
Dates: |
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Volume: | Vol.98 | ||||
Number: | No.21 | ||||
Number of Pages: | 7 | ||||
Page Range: | Article: 211802 | ||||
DOI: | 10.1103/PhysRevLett.98.211802 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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