Measurement of yCP in D0-D¯0 oscillation using quantum correlations in e+e- →D0D¯0 at √s = 3.773 GeV

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Measurement of yCP in D0-D¯0 oscillation using quantum correlations in e+e- →D0D¯0 at √s = 3.773 GeV	767 KB	Adobe Acrobat PDF	View Details	Download
DOI Доступ к ресурсу на сайте издателя				10.1016/j.physletb.2015.04.008

Title: Measurement of yCP in D0-D¯0 oscillation using quantum correlations in e+e- →D0D¯0 at √s = 3.773 GeV
Creator: Ablikim, M.
Creator: Ai, X. C.
Creator: Chelkov, G. A.
Creator: Achasov, M. N.
Contributor: Томский государственный университет Радиофизический факультет Научные подразделения РФФ
Subject: квантовые корреляции
BESIII
Date: 2015
DOI: 10.1016/j.physletb.2015.04.008
Description: We report a measurement of the parameter yCP in D0–D0 oscillations performed by taking advantage of quantum coherence between pairs of D0D0 mesons produced in e+e− annihilations near threshold. In this work, doubly-tagged D0D0 events, where one D decays to a CP eigenstate and the other D decays in a semileptonic mode, are reconstructed using a data sample of 2.92 fb−1 collected with the BESIII detector at the center-of-mass energy of √s = 3.773 GeV. We obtain yCP = (−2.0 ± 1.3 ± 0.7)%, where the first uncertainty is statistical and the second is systematic. This result is compatible with the current world average.

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collection(s): Радиофизический факультет
Identifier: vtls:000526573
http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000526573
Type: статьи в журналах
Source: Physics Letters B. 2015. Vol. 744. P. 339-346
Language: eng

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Радиофизический факультет Measurement of yCP in D0-D¯0 oscillation using quantum correlations in e+e- →D0D¯0 at √s = 3.773 GeV