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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G et al (show 763 more authors) , Cartelle, P Alvarez, Alves, AA Jr, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d'Argent, P, Romeu, J Arnau, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Baldini, W, Barlow, RJ, Barsche, C, Barsuk, S, Barter, W, Baszczyk, M, Batozskaya, V, Batsukh, B, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, E, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Betancourt, C, Betti, F, Bettler, M-O, van Beuzekom, M, Bershyiko, Ia, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bitadze, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, 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Craik, DC, Crocombe, A, Torres, M Cruz, Cunliffe, S, Currie, R, D'Ambrosio, C, Da Cunha Marinho, F, Dall'Occo, E, Dalseno, J, David, PNY, Davis, A, De Aguiar Francisco, O, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, P, Dean, C-T, Decamp, D, Deckenhoffl, M, Del Buono, L, Demmer, M, Dendek, A, Derkach, D, Deschamps, O, Dettori, F, Dey, B, Di Canto, A, Dijkstra, H, Dordei, F, Dorigo, M, Dosil Suarez, A, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Dungs, K, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Deleage, N, Easo, S, Ebert, M, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Ely, S, Esen, S, Evans, HM, Evans, T, Falabella, A, Farley, N, Farry, S ORCID: 0000-0001-5119-9740, Fay, R, Fazzini, D, Ferguson, D, Fernandez Prieto, A, Ferrari, F, Rodrigues, F Ferreira, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fohl, K, 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Henry, L, Hernando Morata, JA, van Herwijnen, E, Hess, M, Hicheur, A, Hill, D, Hombach, C, Hopchev, H, Hulsbergen, W, Humair, T, Hushchyn, M, Hussain, N, Hutchcroft, D ORCID: 0000-0002-4174-6509, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jawahery, A, Jiang, F, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Junk, N, Kandybei, S, Kanso, W, Karacson, M, Kariuki, JM, Karodia, S, Kecke, M, Kelsey, M, Kenyon, IR, Kenzie, M, Kete, T, Khairullin, E, Khanji, B, Khurewathanaku, C, Kirn, T, Klaver, S, Klimaszewski, K, Koliiev, S, Kolpin, M, Komarov, I, Koopman, RF, Koppenburg, P, Kosmyntseva, A, Kozachuk, A, Kozeiha, M, Kravchuk, L, Kreplin, K, Kreps, M, Krokovny, P, Kruse, F, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kurek, K, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lanfranchi, G, Langenbruch, C, So, T Latham, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J-P, Leflat, A, Lefrancois, J, Lefevre, R, Lemaitre, F, Lemos Cid, E, 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Zhukov, V and Zucchelli, S
(2017)
Search for <i>CP</i> violation in the phase space of D<SUP>0</SUP> → π<SUP>+</SUP>π<SUP>-</SUP>π<SUP>+</SUP>π<SUP>-</SUP> decays.
PHYSICS LETTERS B, 769.
pp. 345-356.
Abstract
A search for time-integrated $CP$ violation in the Cabibbo-suppressed decay
$\mbox{$D^0\rightarrow\pi^+\pi^-\pi^+\pi^-$}$ is performed using an unbinned,
model-independent technique known as the energy test. This is the first
application of the energy test in four-body decays. The search is performed for
$P$-even $CP$ asymmetries and, for the first time, is extended to probe the
$P$-odd case. Using proton-proton collision data corresponding to an integrated
luminosity of 3.0 fb$^{-1}$ collected by the LHCb detector at centre-of-mass
energies of $\sqrt{s}=$7 TeV and 8 TeV, 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 $(4.6\pm0.5)\%$ in the
$P$-even case, and marginally consistent with a $p$-value of $(0.6\pm0.2)\%$ in
the $P$-odd case, corresponding to a significance for $CP$ non-conservation of
2.7 standard deviations.
Item Type: |
Article
|
Additional Information: |
All figures and tables, along with any supplementary material and
additional information, are available at
https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-044.html |
Uncontrolled Keywords: |
hep-ex, hep-ex |
Depositing User: |
Symplectic Admin
|
Date Deposited: |
04 May 2017 11:46 |
Last Modified: |
17 Oct 2023 22:32 |
DOI: |
10.1016/j.physletb.2017.03.062 |
Related URLs: |
|
URI: |
https://livrepository.liverpool.ac.uk/id/eprint/3007243 |