Search for CP violation in D ± → K S 0 K ± and D s ± → K S 0 π ± decays

Abstract

A search for CP violation in Cabibbo-suppressed D ± → K S 0 K ± and D s ± → K S 0 π ± decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be

AD±CP→K0SK±=(+0.03±0.17±0.14)%AD±sCP→K0Sπ±=(+0.38±0.46±0.17)%,

assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D (s) ± → K S 0 K ± and D (s) ± → K S 0 π ± gives the sum

AD±→K0SK±CP+AD±s→K0Sπ±CP=(+0.41±0.49±0.26)%.

In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation.

Metadata

Authors/Creators:	The LHCb collaboration Aaij, R Adeva, B Adinolfi, M Affolder, A Ajaltouni, Z Akar, S Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves Jr, AA Amato, S Amerio, S Amhis, Y An, L Anderlini, L Anderson, J Andreassen, R Andreotti, M Andrews, JE Appleby, RB Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M Aslanides, E Auriemma, G Baalouch, M Bachmann, S Back, JJ Badalov, A Balagura, V Baldini, W Barlow, RJ Barschel, C Barsuk, S Barter, W Batozskaya, V Battista, V Bay, A Beaucourt, L Beddow, J Bedeschi, F Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Bencivenni, G Benson, S Benton, J Berezhnoy, A Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, PM Blake, T Blanc, F Blouw, J Blusk, S Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Borsato, M Bowcock, TJV Bowen, E Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brodzicka, J Brook, NH Brown, H Bursche, A Busetto, G Buytaert, J Cadeddu, S Calabrese, R Calvi, M Calvo Gomez, M Camboni, A Campana, P Campora Perez, D Carbone, A Carboni, G Cardinale, R Cardini, A Carranza-Mejia, H Carson, L Carvalho Akiba, K Casse, G Cassina, L Castillo Garcia, L Cattaneo, M Cauet, C Cenci, R Charles, M Charpentier, P Chen, S Cheung, S-F Chiapolini, N Chrzaszcz, M Ciba, K Vidal, XC Ciezarek, G Clarke, PEL Clemencic, M Cliff, HV Closier, J Coco, V Cogan, J Cogneras, E Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Coquereau, S Corti, G Corvo, M Counts, I Couturier, B Cowan, GA Craik, DC Cruz Torres, M Cunliffe, S Currie, R D’Ambrosio, C Dalseno, J David, P David, PNY Davis, A De Bruyn, K De Capua, S De Cian, M De Miranda, JM De Paula, L De Silva, W De Simone, P Decamp, D Deckenhoff, M Del Buono, L Déléage, N Derkach, D Deschamps, O Dettori, F Di Canto, A Dijkstra, H Donleavy, S Dordei, F Dorigo, M Dosil Suárez, A Dossett, D Dovbnya, A Dreimanis, K Dujany, G Dupertuis, F Durante, P Dzhelyadin, R Dziurda, A Dzyuba, A Easo, S Egede, U Egorychev, V Eidelman, S Eisenhardt, S Eitschberger, U Ekelhof, R Eklund, L El Rifai, I Elsasser, C Ely, S Esen, S Evans, T Falabella, A Färber, C Farinelli, C Farley, N Farry, S Fay, RF Ferguson, D Fernandez Albor, V Ferreira Rodrigues, F Ferro-Luzzi, M Filippov, S Fiore, M Fiorini, M Firlej, M Fitzpatrick, C Fiutowski, T Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Fu, J Furfaro, E Gallas Torreira, A Galli, D Gallorini, S Gambetta, S Gandelman, M Gandini, P Gao, Y Garofoli, J Garra Tico, J Garrido, L Gaspar, C Gauld, R Gavardi, L Gavrilov, G Gersabeck, E Gersabeck, M Gershon, T Ghez, P Gianelle, A Giani’, S Gibson, V Giubega, L Gligorov, VV Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H https://orcid.org/0000-0002-1822-3224 Gotti, C Grabalosa Gándara, M Graciani Diaz, R Granado Cardoso, LA Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Griffith, P Grillo, L Grünberg, O Gui, B Gushchin, E Guz, Y Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, SC Hall, S Hamilton, B Hampson, T Han, X Hansmann-Menzemer, S Harnew, N Harnew, ST Harrison, J Hartmann, T He, J Head, T Heijne, V Hennessy, K Henrard, P Henry, L Hernando Morata, JA van Herwijnen, E Heß, M Hicheur, A Hill, D Hoballah, M Hombach, C Hulsbergen, W Hunt, P Hussain, N Hutchcroft, D Hynds, D Idzik, M Ilten, P Jacobsson, R Jaeger, A Jalocha, J Jans, E Jaton, P Jawahery, A Jing, F John, M Johnson, D Jones, CR Joram, C Jost, B Jurik, N Kaballo, M Kandybei, S Kanso, W Karacson, M Karbach, TM Karodia, S Kelsey, M Kenyon, IR Ketel, T Khanji, B Khurewathanakul, C Klaver, S Kochebina, O Kolpin, M Komarov, I Koopman, RF Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kucewicz, W Kucharczyk, M Kudryavtsev, V Kurek, K Kvaratskheliya, T La Thi, VN Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, RW Lanciotti, E Lanfranchi, G Langenbruch, C Langhans, B Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leo, S Leroy, O Lesiak, T Leverington, B Li, Y Liles, M Lindner, R Linn, C Lionetto, F Liu, B Liu, G Lohn, S Longstaff, I Lopes, JH Lopez-March, N Lowdon, P Lu, H Lucchesi, D Luo, H Lupato, A Luppi, E Lupton, O Machefert, F Machikhiliyan, IV Maciuc, F Maev, O Malde, S Manca, G Mancinelli, G Maratas, J Marchand, JF Marconi, U Marin Benito, C Marino, P Märki, R Marks, J Martellotti, G Martens, A Martín Sánchez, A Martinelli, M Martinez Santos, D Martinez Vidal, F Martins Tostes, D Massafferri, A Matev, R Mathe, Z Matteuzzi, C Mazurov, A McCann, M McCarthy, J McNab, A McNulty, R McSkelly, B Meadows, B Meier, F Meissner, M Merk, M Milanes, DA Minard, M-N Moggi, N Molina Rodriguez, J Monteil, S Morandin, M Morawski, P Mordà, A Morello, MJ Moron, J Morris, A-B Mountain, R Muheim, F Müller, K Muresan, R Mussini, M Muster, B Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neri, N Neubert, S Neufeld, N Neuner, M Nguyen, AD Nguyen, TD Nguyen-Mau, C Nicol, M Niess, V Niet, R Nikitin, N Nikodem, T Novoselov, A O’Hanlon, DP Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Onderwater, G Orlandea, M Otalora Goicochea, JM Owen, P Oyanguren, A Pal, BK Palano, A Palombo, F Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, CJ Passaleva, G Patel, GD Patel, M Patrignani, C Pazos Alvarez, A Pearce, A Pellegrino, A Pepe Altarelli, M Perazzini, S Perez Trigo, E Perret, P Perrin-Terrin, M Pescatore, L Pesen, E Petridis, K Petrolini, A Picatoste Olloqui, E Pietrzyk, B Pilař, T Pinci, D Pistone, A Playfer, S Plo Casasus, M Polci, F Poluektov, A Polycarpo, E Popov, A Popov, D Popovici, B Potterat, C Prisciandaro, J Pritchard, A Prouve, C Pugatch, V Puig Navarro, A Punzi, G Qian, W Rachwal, B Rademacker, JH Rakotomiaramanana, B Rama, M Rangel, MS Raniuk, I Rauschmayr, N Raven, G Reichert, S Reid, MM dos Reis, AC Ricciardi, S Richards, A Rihl, M Rinnert, K Rives Molina, V Roa Romero, DA Robbe, P Rodrigues, AB Rodrigues, E Rodriguez Perez, P Roiser, S Romanovsky, V Romero Vidal, A Rotondo, M Rouvinet, J Ruf, T Ruffini, F Ruiz, H Ruiz Valls, P Sabatino, G Saborido Silva, JJ Sagidova, N Sail, P Saitta, B Salustino Guimaraes, V Sanchez Mayordomo, C Sanmartin Sedes, B Santacesaria, R Santamarina Rios, C Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schiller, M Schindler, H Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Sepp, I Serra, N Serrano, J Sestini, L Seyfert, P Shapkin, M Shapoval, I Shcheglov, Y Shears, T Shekhtman, L Shevchenko, V Shires, A Silva Coutinho, R Simi, G Sirendi, M Skidmore, N Skwarnicki, T Smith, NA Smith, E Smith, E Smith, J Smith, M Snoek, H Sokoloff, MD Soler, FJP Soomro, F Souza, D Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, M Stahl, S Steinkamp, O Stenyakin, O Stevenson, S Stoica, S Stone, S Storaci, B Stracka, S Straticiuc, M Straumann, U Stroili, R Subbiah, VK Sun, L Sutcliffe, W Swientek, K Swientek, S Syropoulos, V Szczekowski, M Szczypka, P Szilard, D Szumlak, T T’Jampens, S Teklishyn, M Tellarini, G Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Tomassetti, L Tonelli, D Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, MT Tresch, M Tsaregorodtsev, A Tsopelas, P Tuning, N Ubeda Garcia, M Ukleja, A Ustyuzhanin, A Uwer, U Vagnoni, V Valenti, G Vallier, A Vazquez Gomez, R Vazquez Regueiro, P Vázquez Sierra, C Vecchi, S Velthuis, JJ Veltri, M Veneziano, G Vesterinen, M Viaud, B Vieira, D Vieites Diaz, M Vilasis-Cardona, X Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voß, C Voss, H de Vries, JA Waldi, R Wallace, C Wallace, R Walsh, J Wandernoth, S Wang, J Ward, DR Watson, NK Websdale, D Whitehead, M Wicht, J Wiedner, D Wilkinson, G Williams, MP Williams, M Wilson, FF Wimberley, J Wishahi, J Wislicki, W Witek, M Wormser, G Wotton, SA Wright, S Wu, S Wyllie, K Xie, Y Xing, Z Xu, Z Yang, Z Yuan, X Yushchenko, O Zangoli, M Zavertyaev, M Zhang, L Zhang, WC Zhang, Y Zhelezov, A Zhokhov, A Zhong, L Zvyagin, A
Copyright, Publisher and Additional Information:	© The Author(s) 2014. This article is published under an open access license. Please check the 'Copyright Information' section for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 https://creativecommons.org/licenses/by/4.0/
Keywords:	CP violation; Hadron-Hadron Scattering
Dates:	Accepted: 9 September 2014 Published: 3 October 2014
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst for Climate & Atmos Science (ICAS) (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	25 Feb 2019 15:12
Last Modified:	25 Feb 2019 15:19
Status:	Published
Publisher:	Springer Berlin Heidelberg
Identification Number:	https://doi.org/10.1007/JHEP10(2014)025
Related URLs:	Author

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Search for CP violation in D ± → K S 0 K ± and D s ± → K S 0 π ± decays

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