Search for \(CP\) violation in the phase space of \(D^0 \to \pi^-\pi^+\pi^0\) decays with the energy test

Search for \(CP\) violation in the phase space of \(D^0 \to \pi^-\pi^+\pi^0\) decays with the energy test

A search for \(CP\) violation in \(D^0 \to \pi^-\pi^+\pi^0\) 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 \(CP\) viola...

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Veröffentlicht in:arXiv.org 2024-03
Hauptverfasser: collaboration, LHCb, Albrecht, J, Amhis, Y, Archilli, F, Artamonov, A, Audurier, B, Bailly-reyre, A, P Baladron Rodriguez, Balagura, V, Boldyrev, A, Buytaert, J, Byczynski, W, Chahrour, I, Cooke, N, Craik, D C, Dadabaev, S, d'Argent, P, Dey, B, Ding, S, Duda, P, Eschle, J, Fabiano, F, Felkowski, L F, Fiorini, M, Frank, M, Franzoso, E, Frau, G, Galati, G, B Garcia Plana, Garrido, L, Giambastiani, L, Gkougkousis, E L, Günther, P A, Hansmann-Menzemer, S, Hennessy, K, W Hu, Inglessi, A, Jakobsen, S, Kandybei, S, Kang, Y, Kharisova, A, Kleijne, N, Lazzeroni, C, R Le Gac, S Li, T Li, Litvinov, R, Longstaff, I, Mancuso, C, Mattioli, K R, Merli, A, Mitchell, S E, Mombächer, T, Monteil, S, Morris, A G, Neufeld, N, Newcombe, R, Niel, E M, Nieswand, S, O'Neil, R H, Pagare, B, Pappenheimer, C, Pawley, C J, Perazzini, S, Perret, P, Petrucci, S, Pinci, D, Promberger, L, M Ramos Pernas, Raven, G, Richardson, K, Rinnert, K, Robertson, G, Romanovskiy, V, A Romero Vidal, Rotondo, M, Ryzka, J, Salomoni, M, Santoro, L, Sazak, H, Schmelling, M, Schwemmer, R, Sergi, A, Shields, E B, Siddi, B G, R Silva Coutinho, Sokoloff, M D, Suljik, F, Tisserand, V, Usachov, A, H Van Hecke, Wan, G, Wang, Y, Ward, J A, Wiederhold, A R, Wyllie, K, Yang, Y, Yeroshenko, V, Yin, H, Yuan, X
Format: Artikel
Sprache:eng
Schlagworte:
CP violation
Decay
Large Hadron Collider
Luminosity
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Zusammenfassung:A search for \(CP\) violation in \(D^0 \to \pi^-\pi^+\pi^0\) 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 \(\D^0 \to \K^-\pi^+\pi^0\) and background regions of the signal mode. The results are consistent with \(CP\) symmetry in this decay.
ISSN:2331-8422
DOI:10.48550/arxiv.2306.12746