Search for CP violation in D0→π-π+πdecays with the energy test

LHCb Collaboration, R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, J. AndersonR. Andreassen, M. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, S. Bifani, N. Farley, P. Griffith, I. R. Kenyon, C. Lazzeroni, A. Mazurov, J. McCarthy, C. J. Parkinson, L. Pescatore, N. K. Watson

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25 Citations (Scopus)
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Abstract

A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π-π+πis performed using for the first time an unbinned model-independent technique known as the energy test. Using proton-proton collision data, corresponding to an integrated luminosity of 2.0fb-1 collected by the LHCb detector at a centre-of-mass energy of √s=8TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (2.6±0.5)%.

Original languageEnglish
Pages (from-to)158-167
Number of pages10
JournalPhysics Letters B
Volume740
Early online date25 Nov 2014
DOIs
Publication statusPublished - 5 Jan 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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