Measurement of the Charm-Mixing Parameter yCP

(LHCb Collaboration), Alexander Rudolfovich Wagner

Research output: Contribution to journalArticle

Abstract

A measurement of the charm-mixing parameter yCP using D0→K+K-, D0→π+π-, and D0→K-π+ 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 (0.57±0.13(stat)±0.09(syst))%, in agreement with, and as precise as, the current world-average value.

Original languageEnglish
Article number011802
JournalPhysical Review Letters
Volume122
Issue number1
DOIs
Publication statusPublished - 8 Jan 2019

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decay
mesons
protons
center of mass
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collisions
energy

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  • Physics and Astronomy(all)

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Measurement of the Charm-Mixing Parameter yCP. / (LHCb Collaboration) ; Wagner, Alexander Rudolfovich.

In: Physical Review Letters, Vol. 122, No. 1, 011802, 08.01.2019.

Research output: Contribution to journalArticle

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abstract = "A measurement of the charm-mixing parameter yCP using D0→K+K-, D0→π+π-, and D0→K-π+ 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 (0.57±0.13(stat)±0.09(syst)){\%}, in agreement with, and as precise as, the current world-average value.",
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AU - Aidala, C. A.

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AU - Akar, S.

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AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

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AU - Alkhazov, G.

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AU - An, L.

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AU - D'Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

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AU - Arzymatov, K.

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AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

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AU - Baryshnikov, F.

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AB - A measurement of the charm-mixing parameter yCP using D0→K+K-, D0→π+π-, and D0→K-π+ 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 (0.57±0.13(stat)±0.09(syst))%, in agreement with, and as precise as, the current world-average value.

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