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Dalseno, J.E. Andrews, J.F. Marchand, J. Fu, J. Garc\\'ia Pardi\\~nas, J. Garra Tico, J. He, J.H. Lopes, J.H. Rademacker, J. Jalocha, J.J. Back, J.J. Saborido Silva, J.J. Velthuis, J. Lefran\\c{c}ois, J. Maratas, J. Marks, J.M. De Miranda, J.M. Durham, J.M. Kariuki, J. Molina Rodriguez, J. Moron, J.M. Otalora Goicochea, J. M\\\"uller, J.P. Grabowski, J. Pinzino, J. Plews, J. Prisciandaro, J. Qin, J. Ruiz Vidal, J. Serrano, J. Sun, J. van Tilburg, J.V. Mead, J.V. Viana Barbosa, J. Walsh, J. Wang, J. Wicht, J. Wimberley, J. Wishahi, J. Yu, K. Arzymatov, K.A. Zarebski, K. Belous, K. Carvalho Akiba, K. De Bruyn, K. Dreimanis, K.E. Kim, K. Gizdov, K. Heinicke, K. Hennessy, K. Ivshin, K. Klimaszewski, K. Maguire, K. M\\\"uller, K. Petridis, K. Rinnert, K. Swientek, K. Wyllie, L.A. Granado Cardoso, L. An, L. Anderlini, L. Bian, L. Capriotti, L. Carson, L. Cassina, L. Cojocariu, L. Del Buono, L. De Paula, L. Douglas, L. Dufour, L. Eklund, L. Federici, L. Ferreira Lopes, L. Garrido, L. 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Zheng, Z. Ajaltouni, Z.C. Huard, Z. Li, Z. Mathe, Z. Ren, Z. Tang, Z. Wang, Z. Xu, Z. Yang","submitted_at":"2018-06-05T12:37:11Z","abstract_excerpt":"A measurement of the time-integrated $CP$ asymmetry in $D^0\\rightarrow K^0_S K^0_S$ decays is reported. The data correspond to an integrated luminosity of about $2$ fb$^{-1}$ collected in 2015-2016 by the LHCb collaboration in $pp$ collisions at a centre-of-mass energy of $13$ TeV. The $D^0$ candidate is required to originate from a $D^{\\ast +} \\rightarrow D^0 \\pi^+$ decay, allowing the determination of the flavour of the $D^0$ meson using the pion charge. The $D^0 \\rightarrow K^{+}K^{-}$ decay, which has a well measured $CP$ asymmetry, is used as a calibration channel. The $CP$ asymmetry for "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1806.01642","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2018-06-05T12:37:11Z","cross_cats_sorted":[],"title_canon_sha256":"29bb3f71104ef4701828a4b0fdd6333df27fe4ac3bee1e2a20150658b552980c","abstract_canon_sha256":"688ee7f6f92f50d492fe53c232aa3c98fe739eef9010a0410ff345e4df87798c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:19.355328Z","signature_b64":"XbCg8pob7hmb0ZS/eUIjILOX2RyoTdgFVLrlgITKPKhejW4Emhb3FgXmN/9woWk1l1MfUqIgFOMexBkFmPO0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f3300fd2ecc2082abe281405c99c9abcec2464286fe88ad336b9f933712f129","last_reissued_at":"2026-05-18T00:00:19.354844Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:19.354844Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of the time-integrated $CP$ asymmetry in $D^0 \\rightarrow K^0_S K^0_S$ decays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A.A. Alves Jr, A. Alfonso Albero, A. Artamonov, A. Baranov, A. Bay, A. Beiter, A. Berezhnoy, A. Bertolin, A. Birnkraut, A. Bizzeti, A.B. Morris, A. Bondar, A.B. Rodrigues, A. Buonaura, A. Bursche, A. Camboni, A. Carbone, A. Cardini, A.C. dos Reis, A. Chubykin, A. Comerma-Montells, A. Contu, A. Crocombe, A. Danilina, A. Davis, A. Dendek, A. Di Canto, A. Dosil Su\\'arez, A. Dovbnya, A. Dziurda, A. Dzyuba, A. Ene, A. Falabella, A. Fernandez Prieto, A. Gallas Torreira, A. Golutvin, A. Gomes, A. Grecu, A. Heister, A. Hicheur, A. Jawahery, A.K. Kuonen, A. Lai, A. Leflat, A. Loi, A. Lupato, A. Lusiani, A. Malinin, A. Massafferri, A. Mathad, A. Mauri, A. Mazurov, A. McNab, A. Merli, A. Mogini, A. Nandi, A. Nogay, A. Oblakowska-Mucha, A. Ossowska, A. Oyanguren, A. Palano, A. Papanestis, A. Pastore, A. Pearce, A. Pellegrino, A. Petrolini, A. Petrov, A. Pistone, A. Piucci, A. Poluektov, A. Popov, A. Puig Navarro, A. Robert, A. Rogozhnikov, A. Rollings, A. Romero Vidal, A. Sarti, A. Satta, A. Schopper, A. Sciubba, A. Semennikov, A. Sergi, A. Tayduganov, A. Trisovic, A. Tsaregorodtsev, A. Tully, A. Ukleja, A. Usachov, A. Ustyuzhanin, A. Vagner, A. Valassi, A. Venkateswaran, A. Vitkovskiy, A. Vollhardt, A. Vorobyev, A. Weiden, A. Xu, A. Zhelezov, B. Adeva, B. Batsukh, B. Couturier, B. Delaney, B. Dey, B. Garcia Plana, B.G. Siddi, B. Hamilton, B. Jost, B. Khanji, B. Leverington, B. Malecki, B. Maurin, B. Meadows, B. Pietrzyk, B. Quintana, B. Rachwal, B.R. Gruberg Cazon, B. Saitta, B. Sanmartin Sedes, B. Schmidt, B. Sciascia, B. Souza De Paula, B. Spaan, B. Storaci, B. Voneki, C.A. Aidala, C. Betancourt, C. Bozzi, C. Burr, C. Chen, C. D'Ambrosio, C. F\\\"arber, C. Fitzpatrick, C. Frei, C. Gaspar, C. G\\\"obel, C. Gotti, C. Gu, C. Hadjivasiliou, C. Haen, C. Hasse, C.J.G. Onderwater, C. Joram, C. Khurewathanakul, C. Langenbruch, C. Lazzeroni, C.L. Da Silva, C. Marin Benito, C. Matteuzzi, C.M. Costa Sobral, C. Meaux, C. Nguyen-Mau, C. Parkes, C. Patrignani, C. Potterat, C. 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Reichert, S. Ricciardi, S. Richards, S. Roiser, S. Schael, S. Simone, S. Stahl, S. Stefkova, S. Stemmle, S. Stone, S. Stracka, S. Strokov, S.T. Harnew, S. T'Jampens, S. Tolk, S. Valat, S. Vecchi, S. Zucchelli, T.A. Verlage, T. Blake, T. Boettcher, T. Colombo, T.D. Nguyen, T. Evans, T. Fiutowski, T. Gershon, T. Gys, T. Hadavizadeh, T.H. Hancock, T. Humair, T.J.V. Bowcock, T. Ketel, T. Kirn, T. Klimkovich, T. Kvaratskheliya, T. Latham, T. Lesiak, T. Li, T. Likhomanenko, T. Maltsev, T. Momb\\\"acher, T. Nakada, T. Nanut, T. Ruf, T. Schmelzer, T. Shears, T. Skwarnicki, T. Szumlak, T. Tekampe, T. Williams, U. Egede, U. Eitschberger, U. Marconi, U. Straumann, U. Uwer, V. Balagura, V. Batozskaya, V. Battista, V. Bellee, V. Bocci, V. Chekalina, V. Chobanova, V. Coco, V. Egorychev, V. Franco Lima, V. Gibson, V. Kudryavtsev, V. Lisovskyi, V. Macko, V. M\\\"uller, V. Obraztsov, V. Placinta, V. Pugatch, V. Renaudin, V. Romanovskiy, V. Salustino Guimaraes, V. Shevchenko, V. Syropoulos, V. Tisserand, V. Vagnoni, V.V. Gligorov, V. Volkov, V. Vorobyev, V. Zhukov, W. Baldini, W. Barter, W. Byczynski, W.C. Zhang, W. Funk, W. Hu, W. Huang, W. Hulsbergen, W. Krupa, W. Krzemien, W. Kucewicz, W. Parker, W. Qian, W. Wislicki, X. Cid Vidal, X. Han, X. Liang, X. Liu, X. Lyu, X. Vilasis-Cardona, X. Yuan, X. Zhu, Y. Amhis, Y. Gao, Y. Shcheglov, Yu. Guz, Y. Wang, Y. Xie, Y. Yao, Y. Zhang, Y. Zheng, Z. Ajaltouni, Z.C. Huard, Z. Li, Z. Mathe, Z. Ren, Z. Tang, Z. Wang, Z. Xu, Z. Yang","submitted_at":"2018-06-05T12:37:11Z","abstract_excerpt":"A measurement of the time-integrated $CP$ asymmetry in $D^0\\rightarrow K^0_S K^0_S$ decays is reported. The data correspond to an integrated luminosity of about $2$ fb$^{-1}$ collected in 2015-2016 by the LHCb collaboration in $pp$ collisions at a centre-of-mass energy of $13$ TeV. The $D^0$ candidate is required to originate from a $D^{\\ast +} \\rightarrow D^0 \\pi^+$ decay, allowing the determination of the flavour of the $D^0$ meson using the pion charge. The $D^0 \\rightarrow K^{+}K^{-}$ decay, which has a well measured $CP$ asymmetry, is used as a calibration channel. 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