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Measurement of the Charm-Mixing Parameter yCP

Abstract:
A measurement of the charm-mixing parameter yCP using D0 → KþK−, D0 → πþπ−, and D0 → K−πþ decays is reported. The D0 mesons are required to originate from semimuonic decays of B− and B0 mesons. These decays are partially reconstructed in a data set of proton-proton collisions at center-of-mass energies of 7 and 8 TeV collected with the LHCb experiment and corresponding to an integrated luminosity of 3 fb−1. The yCP parameter is measured to be ð0.57 0.13ðstatÞ 0.09ðsystÞÞ%, in agreement with, and as precise as, the current world-average value.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevLett.122.011802

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Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
122
Issue:
1
Article number:
011802
Publication date:
2019-01-08
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:963607
UUID:
uuid:62defd38-9839-4118-b0f6-e2d3466f1d75
Local pid:
pubs:963607
Source identifiers:
963607
Deposit date:
2019-01-23

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