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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S et al (show 785 more authors) , Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, Ia, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, 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ST, Hasse, C, Hatch, M, He, J, Hecker, M, Heinicke, K, Heister, A, Hennessy, K, Henrard, P, Henry, L, van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hopchev, PH, Hu, W, Huang, W, Huard, ZC, Hulsbergen, W, Humair, T, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Ibis, P, Idzik, M, Ilten, P, Jacobsson, R, Jalocha, J, Jans, E, Jawahery, A, Jiang, F, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Karodia, S, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khairullin, E, Khanji, B, Khurewathanakul, C, Kirn, T, Klaver, S, Klimaszewski, K, Klimkovich, T, Koliiev, S, Kolpin, M, Kopecna, R, Koppenburg, P, Kosmyntseva, A, Kotriakhova, S, Kozeiha, M, Kravchuk, L, Kreps, M, Kress, F, Krokovny, P, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Leflat, A, Lefrançois, J, Lefèvre, R, 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Mitzel, DS, Mogini, A, Molina Rodriguez, J, Mombächer, T, Monroy, IA, Monteil, S, Morandin, M, Morello, MJ, Morgunova, O, Moron, J, Morris, AB, Mountain, R, Muheim, F, Mulder, M, Müller, D, Müller, J, Müller, K, Müller, V, Naik, P, Nakada, T, Nandakumar, R, Nandi, A, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, TD, Nguyen-Mau, C, Nieswand, S, Niet, R, Nikitin, N, Nikodem, T, Nogay, A, O’Hanlon, DP, Oblakowska-Mucha, A, Obraztsov, V, Ogilvy, S, Oldeman, R, Onderwater, CJG, Ossowska, A, Otalora Goicochea, JM, Owen, P, Oyanguren, A, Pais, PR, Palano, A, Palutan, M, Papanestis, A, Pappagallo, M, Pappalardo, LL, Parker, W, Parkes, C, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Pereima, D, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petrov, A, Petruzzo, M, Picatoste Olloqui, E, Pietrzyk, B, Pietrzyk, G, Pikies, M, Pinci, D, Pisani, F, Pistone, A, Piucci, A, Placinta, V, Playfer, 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(2018)
Measurement of CP asymmetry in B0 s → D∓ sK± decays.
Journal of High Energy Physics, 2018 (3).
031801-.
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Abstract
<jats:title>A<jats:sc>bstract</jats:sc></jats:title><jats:p>We report the measurements of the<jats:italic>CP</jats:italic>-violating parameters in<jats:italic>B</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub><jats:sup>0</jats:sup> → <jats:italic>D</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub><jats:sup>∓</jats:sup><jats:italic>K</jats:italic><jats:sup>±</jats:sup>decays observed in<jats:italic>pp</jats:italic>collisions, using a data set corresponding to an integrated luminosity of 3.0 fb<jats:sup>−1</jats:sup>recorded with the LHCb detector. We measure<jats:italic>C</jats:italic><jats:sub><jats:italic>f</jats:italic></jats:sub>= 0<jats:italic>.</jats:italic>73 ± 0<jats:italic>.</jats:italic>14 ± 0<jats:italic>.</jats:italic>05,<jats:italic>A</jats:italic><jats:sub><jats:italic>f</jats:italic></jats:sub><jats:sup><jats:italic>ΔΓ</jats:italic></jats:sup> = 0.39 ± 0.28 ± 0.15,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {A}_{\overline{f}}^{\varDelta \varGamma }=0.31\pm 0.28\pm 0.15 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mi>A</mml:mi><mml:mover><mml:mi>f</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mrow><mml:mi>Δ</mml:mi><mml:mi>Γ</mml:mi></mml:mrow></mml:msubsup><mml:mo>=</mml:mo><mml:mn>0.31</mml:mn><mml:mo>±</mml:mo><mml:mn>0.28</mml:mn><mml:mo>±</mml:mo><mml:mn>0.15</mml:mn></mml:math></jats:alternatives></jats:inline-formula>,<jats:italic>S</jats:italic><jats:sub><jats:italic>f</jats:italic></jats:sub>= −0<jats:italic>.</jats:italic>52 ± 0<jats:italic>.</jats:italic>20 ± 0<jats:italic>.</jats:italic>07,<jats:inline-formula><jats:alternatives><jats:tex-math>$$ {S}_{\overline{f}}=-0.49\pm 0.20\pm 0.07 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>S</mml:mi><mml:mover><mml:mi>f</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:msub><mml:mo>=</mml:mo><mml:mo>−</mml:mo><mml:mn>0.49</mml:mn><mml:mo>±</mml:mo><mml:mn>0.20</mml:mn><mml:mo>±</mml:mo><mml:mn>0.07</mml:mn></mml:math></jats:alternatives></jats:inline-formula>, where the uncertainties are statistical and systematic, respectively. These parameters are used together with the world-average value of the<jats:italic>B</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub><jats:sup>0</jats:sup>mixing phase, −2<jats:italic>β</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub>, to obtain a measurement of the CKM angle γ from<jats:italic>B</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub><jats:sup>0</jats:sup> → <jats:italic>D</jats:italic><jats:sub><jats:italic>s</jats:italic></jats:sub><jats:sup>∓</jats:sup><jats:italic>K</jats:italic><jats:sup>±</jats:sup>decays, yielding<jats:italic>γ</jats:italic> = (128<jats:sub>− 22</jats:sub><jats:sup>+ 17</jats:sup>)<jats:italic>°</jats:italic>modulo 180°, where the uncertainty contains both statistical and systematic contributions. This corresponds to 3<jats:italic>.</jats:italic>8<jats:italic>σ</jats:italic>evidence for<jats:italic>CP</jats:italic>violation in the interference between decay and decay after mixing.</jats:p>