Measurement of D0–D¯¯¯0 mixing parameters and search for CP violation using D0→K+π− decays

Aaij, R. et al. (2013) Measurement of D0–D¯¯¯0 mixing parameters and search for CP violation using D0→K+π− decays. Physical Review Letters, 111(25), p. 251801. (doi: 10.1103/PhysRevLett.111.251801)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.111.251801

Abstract

Measurements of charm mixing parameters from the decay-time-dependent ratio of D0→K+π− to D0→K−π+rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3  fb−1 of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies recorded by the LHCb experiment. In the limit of charge-parity (CP ) symmetry, the mixing parameters are determined to be x'2=(5.5±4.9)×10−5, y′=(4.8±1.0)×10−3, and RD=(3.568±0.066)×10−3. Allowing for CP violation, the measurement is performed separately for D0 and D¯¯¯0 mesons yielding AD=(−0.7±1.9)%, for the direct CP-violating asymmetry, and 0.75<|q/p|<1.24 at the 68.3% confidence level, for the parameter describing CP violation in mixing. This is the most precise determination of these parameters from a single experiment and shows no evidence for CP violation.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Pappagallo, Dr Marco and Alexander, Dr Michael and Soler, Professor Paul and Borghi, Dr Silvia and Rodrigues, Dr Eduardo and Eklund, Professor Lars
Authors: Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., Andrews, J., Appleby, R., Aquines Gutierrez, O., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Auriemma, G., Baalouch, M., Bachmann, S., Back, J., Badalov, A., Baesso, C., Balagura, V., Baldini, W., Barlow, R., Barschel, C., Barsuk, S., Barter, W., Bauer, T., Bay, A., 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, P., Blake, T., Blanc, F., Blouw, J., Blusk, S., Bocci, V., Bondar, A., Bondar, N., Bonivento, W., Borghi, S., Borgia, A., Bowcock, T., Bowen, E., Bozzi, C., Brambach, T., van den Brand, J., Bressieux, J., Brett, D., Britsch, M., Britton, T., Brook, N., Brown, H., Bursche, A., Busetto, G., Buytaert, J., Cadeddu, S., Callot, O., 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., Castillo Garcia, L., Cattaneo, M., Cauet, C., Cenci, R., Charles, M., Charpentier, P., Cheung, S.-F., Chiapolini, N., Chrzaszcz, M., Ciba, K., Cid Vidal, X., Ciezarek, G., Clarke, P., Clemencic, M., Cliff, H., Closier, J., Coca, C., Coco, V., Cogan, J., Cogneras, E., Collins, P., Comerma-Montells, A., Contu, A., Cook, A., Coombes, M., Coquereau, S., Corti, G., Couturier, B., Cowan, G., Craik, D., Cruz Torres, M., Cunliffe, S., Currie, R., D’Ambrosio, C., David, P., David, P., Davis, A., De Bonis, I., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J., 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., Dogaru, M., Donleavy, S., Dordei, F., Dornan, P., Dosil Suárez, A., Dossett, D., Dovbnya, A., Dupertuis, F., Durante, P., Dzhelyadin, R., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., van Eijk, D., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., El Rifai, I., Elsasser, C., Falabella, A., Färber, C., Farinelli, C., Farry, S., Ferguson, D., Fernandez Albor, V., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fiore, M., Fitzpatrick, C., Fontana, M., Fontanelli, F., Forty, R., Francisco, O., Frank, M., Frei, C., Frosini, M., Furfaro, E., Gallas Torreira, A., Galli, D., Gandelman, M., Gandini, P., Gao, Y., Garofoli, J., Garosi, P., Garra Tico, J., Garrido, L., Gaspar, C., Gauld, R., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, P., Gibson, V., Giubega, L., Gligorov, V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gorbounov, P., Gordon, H., Grabalosa Gándara, M., Graciani Diaz, R., Granado Cardoso, L., 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, S., Hall, S., Hamilton, B., Hampson, T., Hansmann-Menzemer, S., Harnew, N., Harnew, S., Harrison, J., Hartmann, T., He, J., Head, T., Heijne, V., Hennessy, K., Henrard, P., Hernando Morata, J., van Herwijnen, E., Heß, M., Hicheur, A., Hicks, E., Hill, D., Hoballah, M., Hombach, C., Hulsbergen, W., Hunt, P., Huse, T., Hussain, N., Hutchcroft, D., Hynds, D., Iakovenko, V., Idzik, M., Ilten, P., Jacobsson, R., Jaeger, A., Jans, E., Jaton, P., Jawahery, A., Jing, F., John, M., Johnson, D., Jones, C., Joram, C., Jost, B., Kaballo, M., Kandybei, S., Kanso, W., Karacson, M., Karbach, T., Kenyon, I., Ketel, T., Khanji, B., Kochebina, O., Komarov, I., Koopman, R., Koppenburg, P., Korolev, M., Kozlinskiy, A., Kravchuk, L., Kreplin, K., Kreps, M., Krocker, G., Krokovny, P., Kruse, F., Kucharczyk, M., Kudryavtsev, V., Kurek, K., Kvaratskheliya, T., La Thi, V., Lacarrere, D., Lafferty, G., Lai, A., Lambert, D., Lambert, R., Lanciotti, E., Lanfranchi, G., Langenbruch, C., 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., Li Gioi, L., Liles, M., Lindner, R., Linn, C., Liu, B., Liu, G., Lohn, S., Longstaff, I., Lopes, J., Lopez-March, N., Lu, H., Lucchesi, D., Luisier, J., Luo, H., Lupton, O., Machefert, F., Machikhiliyan, I., Maciuc, F., Maev, O., Malde, S., Manca, G., Mancinelli, G., Maratas, J., Marconi, U., Marino, P., Märki, R., Marks, J., Martellotti, G., Martens, A., Martín Sánchez, A., Martinelli, M., Martinez Santos, D., Martins Tostes, D., Martynov, A., Massafferri, A., Matev, R., Mathe, Z., Matteuzzi, C., Maurice, E., Mazurov, A., McCarthy, J., McNab, A., McNulty, R., McSkelly, B., Meadows, B., Meier, F., Meissner, M., Merk, M., Milanes, D., Minard, M.-N., Molina Rodriguez, J., Monteil, S., Moran, D., Morawski, P., Mordà, A., Morello, M., Mountain, R., Mous, I., Muheim, F., Müller, K., Muresan, R., Muryn, B., Muster, B., Naik, P., Nakada, T., Nandakumar, R., Nasteva, I., Needham, M., Neubert, S., Neufeld, N., Nguyen, A., Nguyen, T., Nguyen-Mau, C., Nicol, M., Niess, V., Niet, R., Nikitin, N., Nikodem, T., Nomerotski, A., Novoselov, A., Oblakowska-Mucha, A., Obraztsov, V., Oggero, S., Ogilvy, S., Okhrimenko, O., Oldeman, R., Orlandea, M., Otalora Goicochea, J., Owen, P., Oyanguren, A., Pal, B., Palano, A., Palutan, M., Panman, J., Papanestis, A., Pappagallo, M., Parkes, C., Parkinson, C., Passaleva, G., Patel, G., Patel, M., Patrick, G., Patrignani, C., Pavel-Nicorescu, C., Pazos Alvarez, A., Pearce, A., Pellegrino, A., Penso, G., Pepe Altarelli, M., Perazzini, S., Perez Trigo, E., Pérez-Calero Yzquierdo, A., Perret, P., Perrin-Terrin, M., Pescatore, L., Pesen, E., Pessina, G., Petridis, K., Petrolini, A., Phan, A., Picatoste Olloqui, E., Pietrzyk, B., Pilař, T., Pinci, D., Playfer, S., Plo Casasus, M., Polci, F., Polok, G., Poluektov, A., Polycarpo, E., Popov, A., Popov, D., Popovici, B., Potterat, C., Powell, A., Prisciandaro, J., Pritchard, A., Prouve, C., Pugatch, V., Puig Navarro, A., Punzi, G., Qian, W., Rachwal, B., Rademacker, J., Rakotomiaramanana, B., Rangel, M., Raniuk, I., Rauschmayr, N., Raven, G., Redford, S., Reichert, S., Reid, M., dos Reis, A., Ricciardi, S., Richards, A., Rinnert, K., Rives Molina, V., Roa Romero, D., Robbe, P., Roberts, D., Rodrigues, A., 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, J., Sagidova, N., Sail, P., Saitta, B., Salustino Guimaraes, V., 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., Senderowska, K., Sepp, I., Serra, N., Serrano, J., Seyfert, P., Shapkin, M., Shapoval, I., Shcheglov, Y., Shears, T., Shekhtman, L., Shevchenko, O., Shevchenko, V., Shires, A., Silva Coutinho, R., Sirendi, M., Skidmore, N., Skwarnicki, T., Smith, N., Smith, E., Smith, E., Smith, J., Smith, M., Sokoloff, M., Soler, F. J. P., Soomro, F., Souza, D., Souza De Paula, B., Spaan, B., Sparkes, A., Spradlin, P., Stagni, F., Stahl, S., Steinkamp, O., Stevenson, S., Stoica, S., Stone, S., Storaci, B., Straticiuc, M., Straumann, U., Subbiah, V., Sun, L., Sutcliffe, W., Swientek, S., Syropoulos, V., Szczekowski, M., Szczypka, P., Szilard, D., Szumlak, T., T’Jampens, S., Teklishyn, M., Teodorescu, E., Teubert, F., Thomas, C., Thomas, E., van Tilburg, J., Tisserand, V., Tobin, M., Tolk, S., Tonelli, D., Topp-Joergensen, S., Torr, N., Tournefier, E., Tourneur, S., Tran, M., 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, J., Veltri, M., Veneziano, G., Vesterinen, M., Viaud, B., Vieira, D., Vilasis-Cardona, X., Vollhardt, A., Volyanskyy, D., Voong, D., Vorobyev, A., Vorobyev, V., Voß, C., Voss, H., Waldi, R., Wallace, C., Wallace, R., Wandernoth, S., Wang, J., Ward, D., Watson, N., Webber, A., Websdale, D., Whitehead, M., Wicht, J., Wiechczynski, J., Wiedner, D., Wiggers, L., Wilkinson, G., Williams, M., Williams, M., Wilson, F., Wimberley, J., Wishahi, J., Wislicki, W., Witek, M., Wormser, G., Wotton, S., Wright, S., Wu, S., Wyllie, K., Xie, Y., Xing, Z., Yang, Z., Yuan, X., Yushchenko, O., Zangoli, M., Zavertyaev, M., Zhang, F., Zhang, L., Zhang, W., Zhang, Y., Zhelezov, A., Zhokhov, A., Zhong, L., and Zvyagin, A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Copyright Holders:Copyright © 2013 CERN, for the LHCb collaboration
First Published:First published in Physical Review Letters 111(25):251801
Publisher Policy:Reproduced under a Creative Commons License

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