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Search for CP violation in the phase space of D0 → π−π+π0 decays with the energy test

A search for CP violation in D0 → π−π+π0 decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6 fb−1. An unbinned model-independent approach provides sensitivity to local CP violation within the two-dimensional ph...

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Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Carus, Leon (Author) , Caspary, Rowina (Author) , De Cian, Michel (Author) , Frau, Giulia (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Leverington, Blake (Author) , Langenbruch, Christoph (Author) , Marks, Jörg (Author) , Tuci, Giulia (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: September 20, 2023
In: Journal of high energy physics
Year: 2023, Issue: 9, Pages: [1], 1-23
ISSN:1029-8479
DOI:10.1007/JHEP09(2023)129
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP09(2023)129
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Author Notes:The LHCb collaboration
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Summary:A search for CP violation in D0 → π−π+π0 decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6 fb−1. An unbinned model-independent approach provides sensitivity to local CP violation within the two-dimensional phase space of the decay. The method is validated using the Cabibbo-favoured channel D0 → K−π+π0 and background regions of the signal mode. The results are consistent with CP symmetry in this decay.
Item Description:The LHCb collaboration: R. Aaij, S. Bachmann, D. Berninghoff, M. Borsato, L. Carus, R. Caspary, M. De Cian, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, J. Kubat, B. Leverington, C. Langenbruch, J. Marks, M.P. Morgenthaler, L. Promberger,R. Skuza, G. Tuci, D.J. Unverzagt, U. Uwer, L. Witola, A. Zhelezov [und viele weitere Personen]
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Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP09(2023)129

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