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CERN Accelerating science

Article
Report number arXiv:1205.0975 ; CERN-PH-EP-2012-109 ; LHCB-PAPER-2012-003 ; CERN-PH-EP-2012-109 ; LHCB-PAPER-2012-003
Title Observation of double charm production involving open charm in pp collisions at $\sqrt{s}$=7 TeV
Author(s)

Aaij, R (NIKHEF, Amsterdam) ; Abellan Beteta, C (Ramon Llull U., Barcelona ; U. Barcelona (main)) ; Adeva, B (U. Santiago de Compostela (main)) ; Adinolfi, M (Bristol U.) ; Adrover, C (Marseille, CPPM) ; Affolder, A (Liverpool U.) ; Ajaltouni, Z (Clermont-Ferrand U.) ; Albrecht, J (CERN) ; Alessio, F (CERN) ; Alexander, M (Glasgow U.) ; Ali, S (NIKHEF, Amsterdam) ; Alkhazov, G (St. Petersburg, INP) ; Alvarez Cartelle, P (U. Santiago de Compostela (main)) ; Alves Jr, A A (INFN, Rome) ; Amato, S (Rio de Janeiro Federal U.) ; Amhis, Y (Ecole Polytechnique, Lausanne) ; Anderson, J (Zurich U.) ; Appleby, R B (Manchester U.) ; Aquines Gutierrez, O (Heidelberg, Max Planck Inst.) ; Archilli, F (CERN ; Frascati) ; Artamonov, A (Serpukhov, IHEP) ; Artuso, M (CERN ; Syracuse U.) ; Aslanides, E (Marseille, CPPM) ; Auriemma, G (Basilicata U., Potenza ; INFN, Rome) ; Bachmann, S (Heidelberg U.) ; Back, J J (Warwick U.) ; Balagura, V (CERN ; Moscow, ITEP) ; Baldini, W (INFN, Ferrara) ; Barlow, R J (Manchester U.) ; Barschel, C (CERN) ; Barsuk, S (Orsay, LAL) ; Barter, W (Cambridge U.) ; Bates, A (Glasgow U.) ; Bauer, C (Heidelberg, Max Planck Inst.) ; Bauer, Th (NIKHEF, Amsterdam) ; Bay, A (Ecole Polytechnique, Lausanne) ; Bediaga, I (Rio de Janeiro, CBPF) ; Belogurov, S (Moscow, ITEP) ; Belous, K (Serpukhov, IHEP) ; Belyaev, I (Moscow, ITEP) ; Ben-Haim, E (Paris U., VI-VII) ; Benayoun, M (Paris U., VI-VII) ; Bencivenni, G (Frascati) ; Benson, S (Edinburgh U.) ; Benton, J (Bristol U.) ; Bernet, R (Zurich U.) ; Bettler, M -O (INFN, Florence) ; van Beuzekom, M (NIKHEF, Amsterdam) ; Bien, A (Heidelberg U.) ; Bifani, S (University Coll., Dublin) ; Bird, T (Manchester U.) ; Bizzeti, A (U. Modena (main) ; INFN, Florence) ; Bjørnstad, P M (Manchester U.) ; Blake, T (CERN) ; Blanc, F (Ecole Polytechnique, Lausanne) ; Blanks, C (Imperial Coll., London) ; Blouw, J (Heidelberg U.) ; Blusk, S (Syracuse U.) ; Bobrov, A (Novosibirsk, IYF) ; Bocci, V (INFN, Rome) ; Bondar, A (Novosibirsk, IYF) ; Bondar, N (St. Petersburg, INP) ; Bonivento, W (INFN, Cagliari) ; Borghi, S (Manchester U. ; Glasgow U.) ; Borgia, A (Syracuse U.) ; Bowcock, T J V (Liverpool U.) ; Bozzi, C (INFN, Ferrara) ; Brambach, T (Tech. U., Dortmund (main)) ; van den Brand, J (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Bressieux, J (Ecole Polytechnique, Lausanne) ; Brett, D (Manchester U.) ; Britsch, M (Heidelberg, Max Planck Inst.) ; Britton, T (Syracuse U.) ; Brook, N H (Bristol U.) ; Brown, H (Liverpool U.) ; Büchler-Germann, A (Zurich U.) ; Burducea, I (Bucharest, IFIN-HH) ; Bursche, A (Zurich U.) ; Buytaert, J (CERN) ; Cadeddu, S (INFN, Cagliari) ; Callot, O (Orsay, LAL) ; Calvi, M (Milan Bicocca U. ; INFN, Milan Bicocca) ; Calvo Gomez, M (Ramon Llull U., Barcelona ; U. Barcelona (main)) ; Camboni, A (U. Barcelona (main)) ; Campana, P (CERN ; Frascati) ; Carbone, A (INFN, Bologna) ; Carboni, G (Rome U., Tor Vergata ; INFN, Rome2) ; Cardinale, R (CERN ; Genoa U. ; INFN, Genoa) ; Cardini, A (INFN, Cagliari) ; Carson, L (Imperial Coll., London) ; Carvalho Akiba, K (Rio de Janeiro Federal U.) ; Casse, G (Liverpool U.) ; Cattaneo, M (CERN) ; Cauet, Ch (Tech. U., Dortmund (main)) ; Charles, M (Oxford U.) ; Charpentier, Ph (CERN) ; Chiapolini, N (Zurich U.) ; Ciba, K (CERN) ; Cid Vidal, X (U. Santiago de Compostela (main)) ; Ciezarek, G (Imperial Coll., London) ; Clarke, P E L (Edinburgh U.) ; Clemencic, M (CERN) ; Cliff, H V (Cambridge U.) ; Closier, J (CERN) ; Coca, C (Bucharest, IFIN-HH) ; Coco, V (NIKHEF, Amsterdam) ; Cogan, J (Marseille, CPPM) ; Collins, P (CERN) ; Comerma-Montells, A (U. Barcelona (main)) ; Contu, A (Oxford U.) ; Cook, A (Bristol U.) ; Coombes, M (Bristol U.) ; Corti, G (CERN) ; Couturier, B (CERN) ; Cowan, G A (Ecole Polytechnique, Lausanne) ; Currie, R (Edinburgh U.) ; D'Ambrosio, C (CERN) ; David, P (Paris U., VI-VII) ; David, P N Y (NIKHEF, Amsterdam) ; De Bonis, I (Annecy, LAPP) ; De Bruyn, K (NIKHEF, Amsterdam) ; De Capua, S (Rome U., Tor Vergata ; INFN, Rome2) ; De Cian, M (Zurich U.) ; De Miranda, J M (Rio de Janeiro, CBPF) ; De Paula, L (Rio de Janeiro Federal U.) ; De Simone, P (Frascati) ; Decamp, D (Annecy, LAPP) ; Deckenhoff, M (Tech. U., Dortmund (main)) ; Degaudenzi, H (CERN ; Ecole Polytechnique, Lausanne) ; Del Buono, L (Paris U., VI-VII) ; Deplano, C (INFN, Cagliari) ; Derkach, D (CERN ; INFN, Bologna) ; Deschamps, O (Clermont-Ferrand U.) ; Dettori, F (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Dickens, J (Cambridge U.) ; Dijkstra, H (CERN) ; Diniz Batista, P (Rio de Janeiro, CBPF) ; Domingo Bonal, F (Ramon Llull U., Barcelona ; U. Barcelona (main)) ; Donleavy, S (Liverpool U.) ; Dordei, F (Heidelberg U.) ; Dosil Suárez, A (U. Santiago de Compostela (main)) ; Dossett, D (Warwick U.) ; Dovbnya, A (Kharkov, KIPT) ; Dupertuis, F (Ecole Polytechnique, Lausanne) ; Dzhelyadin, R (Serpukhov, IHEP) ; Dziurda, A (Cracow, INP) ; Easo, S (Rutherford) ; Egede, U (Imperial Coll., London) ; Egorychev, V (Moscow, ITEP) ; Eidelman, S (Novosibirsk, IYF) ; van Eijk, D (NIKHEF, Amsterdam) ; Eisele, F (Heidelberg U.) ; Eisenhardt, S (Edinburgh U.) ; Ekelhof, R (Tech. U., Dortmund (main)) ; Eklund, L (Glasgow U.) ; Elsasser, Ch (Zurich U.) ; Elsby, D (Birmingham U.) ; Esperante Pereira, D (U. Santiago de Compostela (main)) ; Falabella, A (INFN, Bologna ; Ferrara U. ; INFN, Ferrara) ; Färber, C (Heidelberg U.) ; Fardell, G (Edinburgh U.) ; Farinelli, C (NIKHEF, Amsterdam) ; Farry, S (University Coll., Dublin) ; Fave, V (Ecole Polytechnique, Lausanne) ; Fernandez Albor, V (U. Santiago de Compostela (main)) ; Ferro-Luzzi, M (CERN) ; Filippov, S (Moscow, INR) ; Fitzpatrick, C (Edinburgh U.) ; Fontana, M (Heidelberg, Max Planck Inst.) ; Fontanelli, F (Genoa U. ; INFN, Genoa) ; Forty, R (CERN) ; Francisco, O (Rio de Janeiro Federal U.) ; Frank, M (CERN) ; Frei, C (CERN) ; Frosini, M (Florence U. ; INFN, Florence) ; Furcas, S (INFN, Milan Bicocca) ; Gallas Torreira, A (U. Santiago de Compostela (main)) ; Galli, D (Bologna U. ; INFN, Bologna) ; Gandelman, M (Rio de Janeiro Federal U.) ; Gandini, P (Oxford U.) ; Gao, Y (Peking U., CHEP) ; Garnier, J-C (CERN) ; Garofoli, J (Syracuse U.) ; Garra Tico, J (Cambridge U.) ; Garrido, L (U. Barcelona (main)) ; Gascon, D (U. Barcelona (main)) ; Gaspar, C (CERN) ; Gauld, R (Oxford U.) ; Gauvin, N (Ecole Polytechnique, Lausanne) ; Gersabeck, M (CERN) ; Gershon, T (CERN ; Warwick U.) ; Ghez, Ph (Annecy, LAPP) ; Gibson, V (Cambridge U.) ; Gligorov, V V (CERN) ; Göbel, C (Rio de Janeiro, Pont. U. Catol.) ; Golubkov, D (Moscow, ITEP) ; Golutvin, A (CERN ; Moscow, ITEP ; Imperial Coll., London) ; Gomes, A (Rio de Janeiro Federal U.) ; Gordon, H (Oxford U.) ; Grabalosa Gándara, M (U. Barcelona (main)) ; Graciani Diaz, R (U. Barcelona (main)) ; Granado Cardoso, L A (CERN) ; Graugés, E (U. Barcelona (main)) ; Graziani, G (INFN, Florence) ; Grecu, A (Bucharest, IFIN-HH) ; Greening, E (Oxford U.) ; Gregson, S (Cambridge U.) ; Gui, B (Syracuse U.) ; Gushchin, E (Moscow, INR) ; Guz, Yu (Serpukhov, IHEP) ; Gys, T (CERN) ; Hadjivasiliou, C (Syracuse U.) ; Haefeli, G (Ecole Polytechnique, Lausanne) ; Haen, C (CERN) ; Haines, S C (Cambridge U.) ; Hampson, T (Bristol U.) ; Hansmann-Menzemer, S (Heidelberg U.) ; Harji, R (Imperial Coll., London) ; Harnew, N (Oxford U.) ; Harrison, J (Manchester U.) ; Harrison, P F (Warwick U.) ; Hartmann, T (Rostock U.) ; He, J (Orsay, LAL) ; Heijne, V (NIKHEF, Amsterdam) ; Hennessy, K (Liverpool U.) ; Henrard, P (Clermont-Ferrand U.) ; Hernando Morata, J A (U. Santiago de Compostela (main)) ; van Herwijnen, E (CERN) ; Hicks, E (Liverpool U.) ; Holubyev, K (Heidelberg U.) ; Hopchev, P (Annecy, LAPP) ; Hulsbergen, W (NIKHEF, Amsterdam) ; Hunt, P (Oxford U.) ; Huse, T (Liverpool U.) ; Huston, R S (University Coll., Dublin) ; Hutchcroft, D (Liverpool U.) ; Hynds, D (Glasgow U.) ; Iakovenko, V (Kiev, INR) ; Ilten, P (University Coll., Dublin) ; Imong, J (Bristol U.) ; Jacobsson, R (CERN) ; Jaeger, A (Heidelberg U.) ; Jahjah Hussein, M (Clermont-Ferrand U.) ; Jans, E (NIKHEF, Amsterdam) ; Jansen, F (NIKHEF, Amsterdam) ; Jaton, P (Ecole Polytechnique, Lausanne) ; Jean-Marie, B (Orsay, LAL) ; Jing, F (Tsinghua U., Beijing) ; John, M (Oxford U.) ; Johnson, D (Oxford U.) ; Jones, C R (Cambridge U.) ; Jost, B (CERN) ; Kaballo, M (Tech. U., Dortmund (main)) ; Kandybei, S (Kharkov, KIPT) ; Karacson, M (CERN) ; Karbach, T M (Tech. U., Dortmund (main)) ; Keaveney, J (University Coll., Dublin) ; Kenyon, I R (Birmingham U.) ; Kerzel, U (CERN) ; Ketel, T (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Keune, A (Ecole Polytechnique, Lausanne) ; Khanji, B (Marseille, CPPM) ; Kim, Y M (Edinburgh U.) ; Knecht, M (Ecole Polytechnique, Lausanne) ; Koopman, R F (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Koppenburg, P (NIKHEF, Amsterdam) ; Korolev, M (SINP, Moscow) ; Kozlinskiy, A (NIKHEF, Amsterdam) ; Kravchuk, L (Moscow, INR) ; Kreplin, K (Heidelberg U.) ; Kreps, M (Warwick U.) ; Krocker, G (Heidelberg U.) ; Krokovny, P (Novosibirsk, IYF) ; Kruse, F (Tech. U., Dortmund (main)) ; Kruzelecki, K (CERN) ; Kucharczyk, M (Milan Bicocca U. ; CERN ; Cracow, INP ; INFN, Milan Bicocca) ; Kudryavtsev, V (Novosibirsk, IYF) ; Kvaratskheliya, T (CERN ; Moscow, ITEP) ; La Thi, V N (Ecole Polytechnique, Lausanne) ; Lacarrere, D (CERN) ; Lafferty, G (Manchester U.) ; Lai, A (INFN, Cagliari) ; Lambert, D (Edinburgh U.) ; Lambert, R W (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Lanciotti, E (CERN) ; Lanfranchi, G (Frascati) ; Langenbruch, C (CERN) ; Latham, T (Warwick U.) ; Lazzeroni, C (Birmingham U.) ; Le Gac, R (Marseille, CPPM) ; van Leerdam, J (NIKHEF, Amsterdam) ; Lees, J -P (Annecy, LAPP) ; Lefèvre, R (Clermont-Ferrand U.) ; Leflat, A (CERN ; SINP, Moscow) ; Lefrançois, J (Orsay, LAL) ; Leroy, O (Marseille, CPPM) ; Lesiak, T (Cracow, INP) ; Li, L (Peking U., CHEP) ; Li Gioi, L (Clermont-Ferrand U.) ; Lieng, M (Tech. U., Dortmund (main)) ; Liles, M (Liverpool U.) ; Lindner, R (CERN) ; Linn, C (Heidelberg U.) ; Liu, B (Peking U., CHEP) ; Liu, G (CERN) ; von Loeben, J (INFN, Milan Bicocca) ; Lopes, J H (Rio de Janeiro Federal U.) ; Lopez Asamar, E (U. Barcelona (main)) ; Lopez-March, N (Ecole Polytechnique, Lausanne) ; Lu, H (Peking U., CHEP) ; Luisier, J (Ecole Polytechnique, Lausanne) ; Mac Raighne, A (Glasgow U.) ; Machefert, F (Orsay, LAL) ; Machikhiliyan, I V (Moscow, ITEP ; Annecy, LAPP) ; Maciuc, F (Heidelberg, Max Planck Inst.) ; Maev, O (CERN ; St. Petersburg, INP) ; Magnin, J (Rio de Janeiro, CBPF) ; Malde, S (Oxford U.) ; Mamunur, R M D (CERN) ; Manca, G (Cagliari U. ; INFN, Cagliari) ; Mancinelli, G (Marseille, CPPM) ; Mangiafave, N (Cambridge U.) ; Marconi, U (INFN, Bologna) ; Märki, R (Ecole Polytechnique, Lausanne) ; Marks, J (Heidelberg U.) ; Martellotti, G (INFN, Rome) ; Martens, A (Paris U., VI-VII) ; Martin, L (Oxford U.) ; Martín Sánchez, A (Orsay, LAL) ; Martinelli, M (NIKHEF, Amsterdam) ; Martinez Santos, D (CERN) ; Massafferri, A (Rio de Janeiro, CBPF) ; Mathe, Z (University Coll., Dublin) ; Matteuzzi, C (INFN, Milan Bicocca) ; Matveev, M (St. Petersburg, INP) ; Maurice, E (Marseille, CPPM) ; Maynard, B (Syracuse U.) ; Mazurov, A (CERN ; Moscow, INR ; INFN, Ferrara) ; McGregor, G (Manchester U.) ; McNulty, R (University Coll., Dublin) ; Meissner, M (Heidelberg U.) ; Merk, M (NIKHEF, Amsterdam) ; Merkel, J (Tech. U., Dortmund (main)) ; Miglioranzi, S (CERN) ; Milanes, D A (INFN, Bari) ; Minard, M -N (Annecy, LAPP) ; Molina Rodriguez, J (Rio de Janeiro, Pont. U. Catol.) ; Monteil, S (Clermont-Ferrand U.) ; Moran, D (University Coll., Dublin) ; Morawski, P (Cracow, INP) ; Mountain, R (Syracuse U.) ; Mous, I (NIKHEF, Amsterdam) ; Muheim, F (Edinburgh U.) ; Müller, K (Zurich U.) ; Muresan, R (Bucharest, IFIN-HH) ; Muryn, B (AGH-UST, Cracow) ; Muster, B (Ecole Polytechnique, Lausanne) ; Mylroie-Smith, J (Liverpool U.) ; Naik, P (Bristol U.) ; Nakada, T (Ecole Polytechnique, Lausanne) ; Nandakumar, R (Rutherford) ; Nasteva, I (Rio de Janeiro, CBPF) ; Needham, M (Edinburgh U.) ; Neufeld, N (CERN) ; Nguyen, A D (Ecole Polytechnique, Lausanne) ; Nguyen-Mau, C (Hanoi U. ; Ecole Polytechnique, Lausanne) ; Nicol, M (Orsay, LAL) ; Niess, V (Clermont-Ferrand U.) ; Nikitin, N (SINP, Moscow) ; Nikodem, T (Heidelberg U.) ; Nomerotski, A (CERN ; Oxford U.) ; Novoselov, A (Serpukhov, IHEP) ; Oblakowska-Mucha, A (AGH-UST, Cracow) ; Obraztsov, V (Serpukhov, IHEP) ; Oggero, S (NIKHEF, Amsterdam) ; Ogilvy, S (Glasgow U.) ; Okhrimenko, O (Kiev, INR) ; Oldeman, R (CERN ; Cagliari U. ; INFN, Cagliari) ; Orlandea, M (Bucharest, IFIN-HH) ; Otalora Goicochea, J M (Rio de Janeiro Federal U.) ; Owen, P (Imperial Coll., London) ; Pal, B K (Syracuse U.) ; Palacios, J (Zurich U.) ; Palano, A (Bari U. ; INFN, Bari) ; Palutan, M (Frascati) ; Panman, J (CERN) ; Papanestis, A (Rutherford) ; Pappagallo, M (Glasgow U.) ; Parkes, C (Manchester U.) ; Parkinson, C J (Imperial Coll., London) ; Passaleva, G (INFN, Florence) ; Patel, G D (Liverpool U.) ; Patel, M (Imperial Coll., London) ; Paterson, S K (Imperial Coll., London) ; Patrick, G N (Rutherford) ; Patrignani, C (Genoa U. ; INFN, Genoa) ; Pavel-Nicorescu, C (Bucharest, IFIN-HH) ; Pazos Alvarez, A (U. Santiago de Compostela (main)) ; Pellegrino, A (NIKHEF, Amsterdam) ; Penso, G (U. Rome La Sapienza (main) ; INFN, Rome) ; Pepe Altarelli, M (CERN) ; Perazzini, S (Bologna U. ; INFN, Bologna) ; Perego, D L (Milan Bicocca U. ; INFN, Milan Bicocca) ; Perez Trigo, E (U. Santiago de Compostela (main)) ; Pérez-Calero Yzquierdo, A (U. Barcelona (main)) ; Perret, P (Clermont-Ferrand U.) ; Perrin-Terrin, M (Marseille, CPPM) ; Pessina, G (INFN, Milan Bicocca) ; Petrolini, A (Genoa U. ; INFN, Genoa) ; Phan, A (Syracuse U.) ; Picatoste Olloqui, E (U. Barcelona (main)) ; Pie Valls, B (U. Barcelona (main)) ; Pietrzyk, B (Annecy, LAPP) ; Pilař, T (Warwick U.) ; Pinci, D (INFN, Rome) ; Plackett, R (Glasgow U.) ; Playfer, S (Edinburgh U.) ; Plo Casasus, M (U. Santiago de Compostela (main)) ; Polok, G (Cracow, INP) ; Poluektov, A (Novosibirsk, IYF ; Warwick U.) ; Polycarpo, E (Rio de Janeiro Federal U.) ; Popov, D (Heidelberg, Max Planck Inst.) ; Popovici, B (Bucharest, IFIN-HH) ; Potterat, C (U. Barcelona (main)) ; Powell, A (Oxford U.) ; Prisciandaro, J (Ecole Polytechnique, Lausanne) ; Pugatch, V (Kiev, INR) ; Puig Navarro, A (U. Barcelona (main)) ; Qian, W (Syracuse U.) ; Rademacker, J H (Bristol U.) ; Rakotomiaramanana, B (Ecole Polytechnique, Lausanne) ; Rangel, M S (Rio de Janeiro Federal U.) ; Raniuk, I (Kharkov, KIPT) ; Raven, G (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Redford, S (Oxford U.) ; Reid, M M (Warwick U.) ; dos Reis, A C (Rio de Janeiro, CBPF) ; Ricciardi, S (Rutherford) ; Richards, A (Imperial Coll., London) ; Rinnert, K (Liverpool U.) ; Roa Romero, D A (Clermont-Ferrand U.) ; Robbe, P (Orsay, LAL) ; Rodrigues, E (Manchester U. ; Glasgow U.) ; Rodrigues, F (Rio de Janeiro Federal U.) ; Rodriguez Perez, P (U. Santiago de Compostela (main)) ; Rogers, G J (Cambridge U.) ; Roiser, S (CERN) ; Romanovsky, V (Serpukhov, IHEP) ; Rosello, M (Ramon Llull U., Barcelona ; U. Barcelona (main)) ; Rouvinet, J (Ecole Polytechnique, Lausanne) ; Ruf, T (CERN) ; Ruiz, H (U. Barcelona (main)) ; Sabatino, G (Rome U., Tor Vergata ; INFN, Rome2) ; Saborido Silva, J J (U. Santiago de Compostela (main)) ; Sagidova, N (St. Petersburg, INP) ; Sail, P (Glasgow U.) ; Saitta, B (Cagliari U. ; INFN, Cagliari) ; Salzmann, C (Zurich U.) ; Sannino, M (Genoa U. ; INFN, Genoa) ; Santacesaria, R (INFN, Rome) ; Santamarina Rios, C (U. Santiago de Compostela (main)) ; Santinelli, R (CERN) ; Santovetti, E (Rome U., Tor Vergata ; INFN, Rome2) ; Sapunov, M (Marseille, CPPM) ; Sarti, A (U. Rome La Sapienza (main) ; Frascati) ; Satriano, C (Basilicata U., Potenza ; INFN, Rome) ; Satta, A (INFN, Rome2) ; Savrie, M (Ferrara U. ; INFN, Ferrara) ; Savrina, D (Moscow, ITEP) ; Schaack, P (Imperial Coll., London) ; Schiller, M (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Schindler, H (CERN) ; Schleich, S (Tech. U., Dortmund (main)) ; Schlupp, M (Tech. U., Dortmund (main)) ; Schmelling, M (Heidelberg, Max Planck Inst.) ; Schmidt, B (CERN) ; Schneider, O (Ecole Polytechnique, Lausanne) ; Schopper, A (CERN) ; Schune, M -H (Orsay, LAL) ; Schwemmer, R (CERN) ; Sciascia, B (Frascati) ; Sciubba, A (U. Rome La Sapienza (main) ; Frascati) ; Seco, M (U. Santiago de Compostela (main)) ; Semennikov, A (Moscow, ITEP) ; Senderowska, K (AGH-UST, Cracow) ; Sepp, I (Imperial Coll., London) ; Serra, N (Zurich U.) ; Serrano, J (Marseille, CPPM) ; Seyfert, P (Heidelberg U.) ; Shapkin, M (Serpukhov, IHEP) ; Shapoval, I (CERN ; Kharkov, KIPT) ; Shatalov, P (Moscow, ITEP) ; Shcheglov, Y (St. Petersburg, INP) ; Shears, T (Liverpool U.) ; Shekhtman, L (Novosibirsk, IYF) ; Shevchenko, O (Kharkov, KIPT) ; Shevchenko, V (Moscow, ITEP) ; Shires, A (Imperial Coll., London) ; Silva Coutinho, R (Warwick U.) ; Skwarnicki, T (Syracuse U.) ; Smith, N A (Liverpool U.) ; Smith, E (Rutherford ; Oxford U.) ; Sobczak, K (Clermont-Ferrand U.) ; Soler, F J P (Glasgow U.) ; Solomin, A (Bristol U.) ; Soomro, F (CERN ; Frascati) ; Souza De Paula, B (Rio de Janeiro Federal U.) ; Spaan, B (Tech. U., Dortmund (main)) ; Sparkes, A (Edinburgh U.) ; Spradlin, P (Glasgow U.) ; Stagni, F (CERN) ; Stahl, S (Heidelberg U.) ; Steinkamp, O (Zurich U.) ; Stoica, S (Bucharest, IFIN-HH) ; Stone, S (CERN ; Syracuse U.) ; Storaci, B (NIKHEF, Amsterdam) ; Straticiuc, M (Bucharest, IFIN-HH) ; Straumann, U (Zurich U.) ; Subbiah, V K (CERN) ; Swientek, S (Tech. U., Dortmund (main)) ; Szczekowski, M (Warsaw, Inst. Nucl. Studies) ; Szczypka, P (Ecole Polytechnique, Lausanne) ; Szumlak, T (AGH-UST, Cracow) ; T'Jampens, S (Annecy, LAPP) ; Teodorescu, E (Bucharest, IFIN-HH) ; Teubert, F (CERN) ; Thomas, C (Oxford U.) ; Thomas, E (CERN) ; van Tilburg, J (Heidelberg U.) ; Tisserand, V (Annecy, LAPP) ; Tobin, M (Zurich U.) ; Tolk, S (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Topp-Joergensen, S (Oxford U.) ; Torr, N (Oxford U.) ; Tournefier, E (Imperial Coll., London ; Annecy, LAPP) ; Tourneur, S (Ecole Polytechnique, Lausanne) ; Tran, M T (Ecole Polytechnique, Lausanne) ; Tsaregorodtsev, A (Marseille, CPPM) ; Tuning, N (NIKHEF, Amsterdam) ; Ubeda Garcia, M (CERN) ; Ukleja, A (Warsaw, Inst. Nucl. Studies) ; Uwer, U (Heidelberg U.) ; Vagnoni, V (INFN, Bologna) ; Valenti, G (INFN, Bologna) ; Vazquez Gomez, R (U. Barcelona (main)) ; Vazquez Regueiro, P (U. Santiago de Compostela (main)) ; Vecchi, S (INFN, Ferrara) ; Velthuis, J J (Bristol U.) ; Veltri, M (U. Urbino (main) ; INFN, Florence) ; Viaud, B (Orsay, LAL) ; Videau, I (Orsay, LAL) ; Vieira, D (Rio de Janeiro Federal U.) ; Vilasis-Cardona, X (Ramon Llull U., Barcelona ; U. Barcelona (main)) ; Visniakov, J (U. Santiago de Compostela (main)) ; Vollhardt, A (Zurich U.) ; Volyanskyy, D (Heidelberg, Max Planck Inst.) ; Voong, D (Bristol U.) ; Vorobyev, A (St. Petersburg, INP) ; Vorobyev, V (Novosibirsk, IYF) ; Voss, H (Heidelberg, Max Planck Inst.) ; Waldi, R (Rostock U.) ; Wandernoth, S (Heidelberg U.) ; Wang, J (Syracuse U.) ; Ward, D R (Cambridge U.) ; Watson, N K (Birmingham U.) ; Webber, A D (Manchester U.) ; Websdale, D (Imperial Coll., London) ; Whitehead, M (Warwick U.) ; Wiedner, D (Heidelberg U.) ; Wiggers, L (NIKHEF, Amsterdam) ; Wilkinson, G (Oxford U.) ; Williams, M P (Rutherford ; Warwick U.) ; Williams, M (Imperial Coll., London) ; Wilson, F F (Rutherford) ; Wishahi, J (Tech. U., Dortmund (main)) ; Witek, M (Cracow, INP) ; Witzeling, W (CERN) ; Wotton, S A (Cambridge U.) ; Wyllie, K (CERN) ; Xie, Y (Edinburgh U.) ; Xing, F (Oxford U.) ; Xing, Z (Syracuse U.) ; Yang, Z (Peking U., CHEP) ; Young, R (Edinburgh U.) ; Yushchenko, O (Serpukhov, IHEP) ; Zangoli, M (INFN, Bologna) ; Zavertyaev, M (Lebedev Inst. ; Heidelberg, Max Planck Inst.) ; Zhang, F (Peking U., CHEP) ; Zhang, L (Syracuse U.) ; Zhang, W C (University Coll., Dublin) ; Zhang, Y (Peking U., CHEP) ; Zhelezov, A (Heidelberg U.) ; Zhong, L (Peking U., CHEP) ; Zvyagin, A (CERN)

Imprint 07 May 2012. - 41 p.
Note Comments: 41 pages, 20 figures
41 pages, 20 figures
In: JHEP 06 (2012) pp.141
JHEP 03 (2014) pp.108
DOI 10.1007/JHEP06(2012)141
10.1007/JHEP03(2014)108 (Addendum)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Abstract The production of $J/\psi$ mesons accompanied by open charm, and of pairs of open charm hadrons are observed in pp collisions at a centre-of-mass energy of 7 TeV using an integrated luminosity of $355pb^{-1}$ collected with the LHCb detector. Model independent measurements of absolute cross-sections are given together with ratios to the measured $J/\psi$ and open charm cross-sections. The properties of these events are studied and compared to theoretical predictions.
Copyright/License preprint: © 2012-2024 CERN (License: CC-BY-3.0)
publication: © 2012-2024 CERN (License: CC-BY-3.0)



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 Record created 2012-05-07, last modified 2023-03-17


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