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Indirect CP violation results and HFAG averages

The current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry ($A_{\Gamma}$) in decays of $D^0-\bar{D^0}$ mesons to CP eigenstates, $K^...

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Autor principal: Borghi, Silvia
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1637624
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author Borghi, Silvia
author_facet Borghi, Silvia
author_sort Borghi, Silvia
collection CERN
description The current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry ($A_{\Gamma}$) in decays of $D^0-\bar{D^0}$ mesons to CP eigenstates, $K^-K^+$ and $\pi^- \pi^+$, and by $y_{CP}$, the ratio between the effective lifetime measured in decay to a CP eigenstate and that to the mixed eigenstate $K \pi$. All results are consistent with the no CP violation hypothesis. The latest world averages for mixing and CP asymmetry in the charm sector evaluated by the Heavy Flavour Averaging Group are presented. The no mixing hypothesis is excluded at more than 12 standard deviations. The search for direct and indirect CP violation in the charm sector is consistent with no CP violation at 2.0% confident level.
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spelling cern-16376242023-03-14T20:13:38Zhttp://cds.cern.ch/record/1637624engBorghi, SilviaIndirect CP violation results and HFAG averagesParticle Physics - ExperimentThe current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry ($A_{\Gamma}$) in decays of $D^0-\bar{D^0}$ mesons to CP eigenstates, $K^-K^+$ and $\pi^- \pi^+$, and by $y_{CP}$, the ratio between the effective lifetime measured in decay to a CP eigenstate and that to the mixed eigenstate $K \pi$. All results are consistent with the no CP violation hypothesis. The latest world averages for mixing and CP asymmetry in the charm sector evaluated by the Heavy Flavour Averaging Group are presented. The no mixing hypothesis is excluded at more than 12 standard deviations. The search for direct and indirect CP violation in the charm sector is consistent with no CP violation at 2.0% confident level.The current status of the search for indirect CP violation in the neutral D meson system at the B-factories and at LHCb is reported. The indirect CP asymmetry search is performed by the measurement of the proper-time asymmetry ($A_{\Gamma}$) in decays of $D^0-\bar{D^0}$ mesons to CP eigenstates, $K^-K^+$ and $\pi^- \pi^+$, and by $y_{CP}$, the ratio between the effective lifetime measured in decay to a CP eigenstate and that to the mixed eigenstate $K \pi$. All results are consistent with the no CP violation hypothesis. The latest world averages for mixing and CP asymmetry in the charm sector evaluated by the Heavy Flavour Averaging Group are presented. The no mixing hypothesis is excluded at more than 12 standard deviations. The search for direct and indirect CP violation in the charm sector is consistent with no CP violation at 2.0% confident level.arXiv:1312.4815oai:cds.cern.ch:16376242013-12-17
spellingShingle Particle Physics - Experiment
Borghi, Silvia
Indirect CP violation results and HFAG averages
title Indirect CP violation results and HFAG averages
title_full Indirect CP violation results and HFAG averages
title_fullStr Indirect CP violation results and HFAG averages
title_full_unstemmed Indirect CP violation results and HFAG averages
title_short Indirect CP violation results and HFAG averages
title_sort indirect cp violation results and hfag averages
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1637624
work_keys_str_mv AT borghisilvia indirectcpviolationresultsandhfagaverages