Evidence for D-0-(D)over-bar(0) mixing

B. Aubert; L.L. Zhang; S. Chen; W. Wang; J.M. Anderson; X.H. Li; M.A. Baak; G. Raven; H. Snoek; P. David; H. Schroder; H. Liu; N. van Bakel; A. Wagner; Z. Yu

doi:10.1103/PhysRevLett.98.211802

Evidence for D-0-(D)over-bar(0) mixing

B. Aubert, L.L. Zhang, S. Chen, W. Wang, J.M. Anderson, X.H. Li, M.A. Baak, G. Raven, H. Snoek, P. David, H. Schroder, H. Liu, N. van Bakel, A. Wagner, Z. Yu

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

We present evidence for D0-D̄0 mixing in D0→K+π- decays from 384fb-1 of e+e- colliding-beam data recorded near s=10.6GeV 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)]×10-3 and y′=[9.7±4.4(stat)±3.1(syst)] ×10-3 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 RD, 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. © 2007 The American Physical Society.

Original language	English
Journal	Physical Review Letters
Volume	98
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.98.211802
Publication status	Published - 2007

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Evidence for D-0-(D)over-bar(0) mixing

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@article{bf65bb6598ca468192143cbc625d7598,

title = "Evidence for D-0-(D)over-bar(0) mixing",

abstract = "We present evidence for D0-{\=D}0 mixing in D0→K+π- decays from 384fb-1 of e+e- colliding-beam data recorded near s=10.6GeV 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)]×10-3 and y′=[9.7±4.4(stat)±3.1(syst)] ×10-3 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 RD, 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. {\textcopyright} 2007 The American Physical Society.",

author = "B. Aubert and L.L. Zhang and S. Chen and W. Wang and J.M. Anderson and X.H. Li and M.A. Baak and G. Raven and H. Snoek and P. David and H. Schroder and H. Liu and {van Bakel}, N. and A. Wagner and Z. Yu",

note = "Evidence for D-0-(D)over-bar(0) mixing",

year = "2007",

doi = "10.1103/PhysRevLett.98.211802",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Evidence for D-0-(D)over-bar(0) mixing

AU - Aubert, B.

AU - Zhang, L.L.

AU - Chen, S.

AU - Wang, W.

AU - Anderson, J.M.

AU - Li, X.H.

AU - Baak, M.A.

AU - Raven, G.

AU - Snoek, H.

AU - David, P.

AU - Schroder, H.

AU - Liu, H.

AU - van Bakel, N.

AU - Wagner, A.

AU - Yu, Z.

N1 - Evidence for D-0-(D)over-bar(0) mixing

PY - 2007

Y1 - 2007

N2 - We present evidence for D0-D̄0 mixing in D0→K+π- decays from 384fb-1 of e+e- colliding-beam data recorded near s=10.6GeV 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)]×10-3 and y′=[9.7±4.4(stat)±3.1(syst)] ×10-3 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 RD, 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. © 2007 The American Physical Society.

AB - We present evidence for D0-D̄0 mixing in D0→K+π- decays from 384fb-1 of e+e- colliding-beam data recorded near s=10.6GeV 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)]×10-3 and y′=[9.7±4.4(stat)±3.1(syst)] ×10-3 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 RD, 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. © 2007 The American Physical Society.

U2 - 10.1103/PhysRevLett.98.211802

DO - 10.1103/PhysRevLett.98.211802

M3 - Article

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

Evidence for D-0-(D)over-bar(0) mixing

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