Observation of D⁰ Meson Decays to Π⁺π⁻μ⁺μ⁻ and K⁺K⁻μ⁺μ⁻ Final States

• Main Authors: Aaij, R. (Author), Adeva, B. (Author), Adinolfi, M. (Author), Ajaltouni, Z. (Author), Akar, S. (Author), Albrecht, J. (Author), Alessio, F. (Author), Alexander, M. (Author), Alfonso Albero, A. (Author), Ali, S. (Author), Alkhazov, G. (Author), Alvarez Cartelle, P. (Author), Alves, A. A (Author), Amato, S. (Author), Amerio, S. (Author), Amhis, Y. (Author), An, L. (Author), Anderlini, L. (Author), Andreassi, G. (Author), Andreotti, M. (Author), Andrews, J. E (Author), Appleby, R. B (Author), Archilli, F. (Author), d'Argent, P. (Author), Arnau Romeu, J. (Author), Artamonov, A. (Author), Artuso, M. (Author), Aslanides, E. (Author), Auriemma, G. (Author), Baalouch, M. (Author), Babuschkin, I. (Author), Bachmann, S. (Author), Back, J. J (Author), Badalov, A. (Author), Baesso, C. (Author), Baker, S. (Author), Balagura, V. (Author), Baldini, W. (Author), Baranov, A. (Author), Barlow, R. J (Author), Barschel, C. (Author), Barsuk, S. (Author), Barter, W. (Author), Baryshnikov, F. (Author), Batozskaya, V. (Author), Battista, V. (Author), Bay, A. (Author), Beaucourt, L. (Author), Beddow, J. (Author), Bedeschi, F. (Author), Bediaga, I. (Author), Beiter, A. (Author), Bel, L. J (Author), Beliy, N. (Author), Bellee, V. (Author), Belloli, N. (Author), Belous, K. (Author), Belyaev, I. (Author), Ben-Haim, E. (Author), Bencivenni, G. (Author), Benson, S. (Author), Beranek, S. (Author), Berezhnoy, A. (Author), Bernet, R. (Author), Berninghoff, D. (Author), Bertholet, E. (Author), Bertolin, A. (Author), Betancourt, C. (Author), Betti, F. (Author), Bettler, M.-O (Author), van Beuzekom, M. (Author), Bezshyiko, Ia (Author), Bifani, S. (Author), Billoir, P. (Author), Birnkraut, A. (Author), Bitadze, A. (Author), Bizzeti, A. (Author), Bjørn, M. (Author), Blake, T. (Author), Blanc, F. (Author), Blouw, J. (Author), Blusk, S. (Author), Bocci, V. (Author), Bondar, A. (Author), Bondar, N. (Author), Bonivento, W. (Author), Bordyuzhin, I. (Author), Borgheresi, A. (Author), Borghi, S. (Author), Borisyak, M. (Author), Borsato, M. (Author), Bossu, F. (Author), Boubdir, M. (Author), Bowcock, T. J. V (Author), Bowen, E. (Author), Bozzi, C. (Author), Braun, S. (Author), Britton, T. (Author), Brodzicka, J. (Author), Brundu, D. (Author), Buchanan, E. (Author), Burr, C. (Author), Bursche, A. (Author), Buytaert, J. (Author), Byczynski, W. (Author), Cadeddu, S. (Author), Cai, H. (Author), Calabrese, R. (Author), Calladine, R. (Author), Calvi, M. (Author), Calvo Gomez, M. (Author), Camboni, A. (Author), Campana, P. (Author), Campora Perez, D. H (Author), Capriotti, L. (Author), Carbone, A. (Author), Carboni, G. (Author), Cardinale, R. (Author), Cardini, A. (Author), Carniti, P. (Author), Carson, L. (Author), Carvalho Akiba, K. (Author), Casse, G. (Author), Cassina, L. (Author), Castillo Garcia, L. (Author), Cattaneo, M. (Author), Cavallero, G. (Author), Cenci, R. (Author), Chamont, D. (Author), Charles, M. (Author), Charpentier, Ph (Author), Chatzikonstantinidis, G. (Author), Chefdeville, M. (Author), Chen, S. (Author), Cheung, S. F (Author), Chitic, S.-G (Author), Chobanova, V. (Author), Chrzaszcz, M. (Author), Chubykin, A. (Author), Ciambrone, P. (Author), Cid Vidal, X. (Author), Ciezarek, G. (Author), Clarke, P. E. L (Author), Clemencic, M. (Author), Cliff, H. V (Author), Closier, J. (Author), Cogan, J. (Author), Cogneras, E. (Author), Cogoni, V. (Author), Cojocariu, L. (Author), Collins, P. (Author), Colombo, T. (Author), Comerma-Montells, A. (Author), Contu, A. (Author), Cook, A. (Author), Coombs, G. (Author), Coquereau, S. (Author), Corti, G. (Author), Corvo, M. (Author), Costa Sobral, C. M (Author), Couturier, B. (Author), Cowan, G. A (Author), Crocombe, A. (Author), Cruz Torres, M. (Author), Currie, R. (Author), D'Ambrosio, C. (Author), Da Cunha Marinho, F. (Author), Dall'Occo, E. (Author), Dalseno, J. (Author), Davis, A. (Author), De Aguiar Francisco, O. (Author), De Capua, S. (Author), De Cian, M. (Author), De Miranda, J. M (Author), De Paula, L. (Author), De Serio, M. (Author), De Simone, P. (Author), Dean, C. T (Author), Decamp, D. (Author), Del Buono, L. (Author), Dembinski, H.-P (Author), Demmer, M. (Author), Dendek, A. (Author), Derkach, D. (Author), Deschamps, O. (Author), Dettori, F. (Author), Dey, B. (Author), Di Canto, A. (Author), Di Nezza, P. (Author), Dijkstra, H. (Author), Dordei, F. (Author), Dorigo, M. (Author), Dosil Suárez, A. (Author), Douglas, L. (Author), Dovbnya, A. (Author), Dreimanis, K. (Author), Dufour, L. (Author), Dujany, G. (Author), Durante, P. (Author), Dzhelyadin, R. (Author), Dziewiecki, M. (Author), Dziurda, A. (Author), Dzyuba, A. (Author), Easo, S. (Author), Ebert, M. (Author), Egede, U. (Author), Egorychev, V. (Author), Eidelman, S. (Author), Eisenhardt, S. (Author), Eitschberger, U. (Author), Ekelhof, R. (Author), Eklund, L. (Author), Ely, S. (Author), Esen, S. (Author), Evans, H. M (Author), Evans, T. (Author), Falabella, A. (Author), Farley, N. (Author), Farry, S. (Author), Fay, R. (Author), Fazzini, D. (Author), Federici, L. (Author), Ferguson, D. (Author), Fernandez, G. (Author), Fernandez Declara, P. (Author), Fernandez Prieto, A. (Author), Ferrari, F. (Author), Ferreira Rodrigues, F. (Author), Ferro-Luzzi, M. (Author), Filippov, S. (Author), Fini, R. A (Author), Fiore, M. (Author), Fiorini, M. (Author), Firlej, M. (Author), Fitzpatrick, C. (Author), Fiutowski, T. (Author), Fleuret, F. (Author), Fohl, K. (Author), Fontana, M. (Author), Fontanelli, F. (Author), Forshaw, D. C (Author), Forty, R. (Author), Franco Lima, V. (Author), Frank, M. (Author), Frei, C. (Author), Fu, J. (Author), Funk, W. (Author), Furfaro, E. (Author), Färber, C. (Author), Gabriel, E. (Author), Gallas Torreira, A. (Author), Galli, D. (Author), Gallorini, S. (Author), Gambetta, S. (Author), Gandelman, M. (Author), Gandini, P. (Author), Gao, Y. (Author), Garcia Martin, L. M (Author), García Pardiñas, J. (Author), Garra Tico, J. (Author), Garrido, L. (Author), Garsed, P. J (Author), Gascon, D. (Author), Gaspar, C. (Author), Gavardi, L. (Author), Gazzoni, G. (Author), Gerick, D. (Author), Gersabeck, E. (Author), Gersabeck, M. (Author), Gershon, T. (Author), Ghez, Ph (Author), Gianì, S. (Author), Gibson, V. (Author), Girard, O. G (Author), Giubega, L. (Author), Gizdov, K. (Author), Gligorov, V. V (Author), Golubkov, D. (Author), Golutvin, A. (Author), Gomes, A. (Author), Gorelov, I. V (Author), Gotti, C. (Author), Govorkova, E. (Author), Grabowski, J. P (Author), Graciani Diaz, R. (Author), Granado Cardoso, L. A (Author), Graugés, E. (Author), Graverini, E. (Author), Graziani, G. (Author), Grecu, A. (Author), Greim, R. (Author), Griffith, P. (Author), Grillo, L. (Author), Gruber, L. (Author), Gruberg Cazon, B. R (Author), Grünberg, O. (Author), Gushchin, E. (Author), Guz, Yu (Author), Gys, T. (Author), Göbel, C. (Author), Hadavizadeh, T. (Author), Hadjivasiliou, C. (Author), Haefeli, G. (Author), Haen, C. (Author), Haines, S. C (Author), Hamilton, B. (Author), Han, X. (Author), Hancock, T. H (Author), Hansmann-Menzemer, S. (Author), Harnew, N. (Author), Harnew, S. T (Author), Harrison, J. (Author), Hasse, C. (Author), Hatch, M. (Author), He, J. (Author), Hecker, M. (Author), Heinicke, K. (Author), Heister, A. (Author), Hennessy, K. (Author), Henrard, P. (Author), Henry, L. (Author), van Herwijnen, E. (Author), Heß, M. (Author), Hicheur, A. (Author), Hill, D. (Author), Hombach, C. (Author), Hopchev, P. H (Author), Huard, Z.-C (Author), Hulsbergen, W. (Author), Humair, T. (Author), Hushchyn, M. (Author), Hutchcroft, D. (Author), Ibis, P. (Author), Idzik, M. (Author), Jacobsson, R. (Author), Jalocha, J. (Author), Jans, E. (Author), Jawahery, A. (Author), Jiang, F. (Author), John, M. (Author), Johnson, D. (Author), Jones, C. R (Author), Joram, C. (Author), Jost, B. (Author), Jurik, N. (Author), Kandybei, S. (Author), Karacson, M. (Author), Kariuki, J. M (Author), Karodia, S. (Author), Kazeev, N. (Author), Kecke, M. (Author), Kelsey, M. (Author), Kenzie, M. (Author), Ketel, T. (Author), Khairullin, E. (Author), Khanji, B. (Author), Khurewathanakul, C. (Author), Kirn, T. (Author), Klaver, S. (Author), Klimaszewski, K. (Author), Klimkovich, T. (Author), Koliiev, S. (Author), Kolpin, M. (Author), Komarov, I. (Author), Kopecna, R. (Author), Koppenburg, P. (Author), Kosmyntseva, A. (Author), Kotriakhova, S. (Author), Kozeiha, M. (Author), Kreps, M. (Author), Krokovny, P. (Author), Kruse, F. (Author), Krzemien, W. (Author), Kucewicz, W. (Author), Kucharczyk, M. (Author), Kudryavtsev, V. (Author), Kuonen, A. K (Author), Kurek, K. (Author), Kvaratskheliya, T. (Author), Lacarrere, D. (Author), Lafferty, G. (Author), Lai, A. (Author), Lanfranchi, G. (Author), Langenbruch, C. (Author), Latham, T. (Author), Lazzeroni, C. (Author), Le Gac, R. (Author), van Leerdam, J. (Author), Leflat, A. (Author), Lefrançois, J. (Author), Lefèvre, R. (Author), Lemaitre, F. (Author), Lemos Cid, E. (Author), Leroy, O. (Author), Lesiak, T. (Author), Leverington, B. (Author), Li, P.-R (Author), Li, T. (Author), Li, Y. (Author), Li, Z. (Author), Likhomanenko, T. (Author), Lindner, R. (Author), Lionetto, F. (Author), Lisovskyi, V. (Author), Liu, X. (Author), Loh, D. (Author), Loi, A. (Author), Longstaff, I. (Author), Lopes, J. H (Author), Lucchesi, D. (Author), Lucio Martinez, M. (Author), Luo, H. (Author), Lupato, A. (Author), Luppi, E. (Author), Lupton, O. (Author), Lusiani, A. (Author), Lyu, X. (Author), Machefert, F. (Author), Maciuc, F. (Author), Macko, V. (Author), Mackowiak, P. (Author), Maddrell-Mander, S. (Author), Maev, O. (Author), Maguire, K. (Author), Maisuzenko, D. (Author), Majewski, M. W (Author), Malde, S. (Author), Malinin, A. (Author), Maltsev, T. (Author), Manca, G. (Author), Mancinelli, G. (Author), Manning, P. (Author), Marangotto, D. (Author), Maratas, J. (Author), Marchand, J. F (Author), Marconi, U. (Author), Marin Benito, C. (Author), Marinangeli, M. (Author), Marino, P. (Author), Marks, J. (Author), Martellotti, G. (Author), Martin, M. (Author), Martinelli, M. (Author), Martinez Santos, D. (Author), Martinez Vidal, F. (Author), Martins Tostes, D. (Author), Massacrier, L. M (Author), Massafferri, A. (Author), Matev, R. (Author), Mathad, A. (Author), Mathe, Z. (Author), Matteuzzi, C. (Author), Mauri, A. (Author), Maurice, E. (Author), Maurin, B. (Author), Mazurov, A. (Author), McCann, M. (Author), McNab, A. (Author), McNulty, R. (Author), Mead, J. V (Author), Meadows, B. (Author), Meaux, C. (Author), Meier, F. (Author), Meinert, N. (Author), Melnychuk, D. (Author), Merk, M. (Author), Merli, A. (Author), Michielin, E. (Author), Milanes, D. A (Author), Millard, E. (Author), Minard, M.-N (Author), Minzoni, L. (Author), Mitzel, D. S (Author), Mogini, A. (Author), Molina Rodriguez, J. (Author), Mombacher, T. (Author), Monroy, I. A (Author), Monteil, S. (Author), Morandin, M. (Author), Morello, M. J (Author), Morgunova, O. (Author), Moron, J. (Author), Morris, A. B (Author), Mountain, R. (Author), Muheim, F. (Author), Mulder, M. (Author), Müller, D. (Author), Müller, J. (Author), Müller, K. (Author), Müller, V. (Author), Naik, P. (Author), Nakada, T. (Author), Nandakumar, R. (Author), Nandi, A. (Author), Nasteva, I. (Author), Needham, M. (Author), Neri, N. (Author), Neubert, S. (Author), Neufeld, N. (Author), Neuner, M. (Author), Nguyen, T. D (Author), Nguyen-Mau, C. (Author), Nieswand, S. (Author), Niet, R. (Author), Nikitin, N. (Author), Nikodem, T. (Author), Nogay, A. (Author), O'Hanlon, D. P (Author), Oblakowska-Mucha, A. (Author), Obraztsov, V. (Author), Ogilvy, S. (Author), Oldeman, R. (Author), Onderwater, C. J. G (Author), Ossowska, A. (Author), Otalora Goicochea, J. M (Author), Owen, P. (Author), Oyanguren, A. (Author), Pais, P. R (Author), Palano, A. (Author), Palutan, M. (Author), Papanestis, A. (Author), Pappagallo, M. (Author), Pappalardo, L. L (Author), Parker, W. (Author), Parkes, C. (Author), Passaleva, G. (Author), Pastore, A. (Author), Patel, M. (Author), Patrignani, C. (Author), Pearce, A. (Author), Pellegrino, A. (Author), Penso, G. (Author), Pepe Altarelli, M. (Author), Perazzini, S. (Author), Perret, P. (Author), Pescatore, L. (Author), Petridis, K. (Author), Petrolini, A. (Author), Petrov, A. (Author), Petruzzo, M. (Author), Picatoste Olloqui, E. (Author), Pietrzyk, B. (Author), Pikies, M. (Author), Pinci, D. (Author), Pistone, A. (Author), Piucci, A. (Author), Placinta, V. (Author), Playfer, S. (Author), Plo Casasus, M. (Author), Polci, F. (Author), Poli Lener, M. (Author), Poluektov, A. (Author), Polyakov, I. (Author), Polycarpo, E. (Author), Pomery, G. J (Author), Ponce, S. (Author), Popov, A. (Author), Popov, D. (Author), Poslavskii, S. (Author), Potterat, C. (Author), Price, E. (Author), Prisciandaro, J. (Author), Prouve, C. (Author), Pugatch, V. (Author), Puig Navarro, A. (Author), Pullen, H. (Author), Punzi, G. (Author), Qian, W. (Author), Quagliani, R. (Author), Quintana, B. (Author), Rachwal, B. (Author), Rademacker, J. H (Author), Rama, M. (Author), Ramos Pernas, M. (Author), Rangel, M. S (Author), Raniuk, I. (Author), Ratnikov, F. (Author), Raven, G. (Author), Ravonel Salzgeber, M. (Author), Reboud, M. (Author), Redi, F. (Author), Reichert, S. (Author), dos Reis, A. C (Author), Remon Alepuz, C. (Author), Renaudin, V. (Author), Ricciardi, S. (Author), Richards, S. (Author), Rihl, M. (Author), Rinnert, K. (Author), Rives Molina, V. (Author), Robbe, P. (Author), Robert, A. (Author), Rodrigues, A. B (Author), Rodrigues, E. (Author), Rodriguez Lopez, J. A (Author), Rodriguez Perez, P. (Author), Rogozhnikov, A. (Author), Roiser, S. (Author), Rollings, A. (Author), Romanovskiy, V. (Author), Romero Vidal, A. (Author), Ronayne, J. W (Author), Rotondo, M. (Author), Rudolph, M. S (Author), Ruf, T. (Author), Ruiz Valls, P. (Author), Ruiz Vidal, J. (Author), Saborido Silva, J. J (Author), Sadykhov, E. (Author), Sagidova, N. (Author), Saitta, B. (Author), Salustino Guimaraes, V. (Author), Sanchez Mayordomo, C. (Author), Sanmartin Sedes, B. (Author), Santacesaria, R. (Author), Santamarina Rios, C. (Author), Santimaria, M. (Author), Santovetti, E. (Author), Sarpis, G. (Author), Sarti, A. (Author), Satriano, C. (Author), Satta, A. (Author), Saunders, D. M (Author), Savrina, D. (Author), Schael, S. (Author), Schellenberg, M. (Author), Schiller, M. (Author), Schindler, H. (Author), Schlupp, M. (Author), Schmelling, M. (Author), Schmelzer, T. (Author), Schmidt, B. (Author), Schneider, O. (Author), Schopper, A. (Author), Schreiner, H. F (Author), Schubert, K. (Author), Schubiger, M. (Author), Schune, M.-H (Author), Schwemmer, R. (Author), Sciascia, B. (Author), Sciubba, A. (Author), Semennikov, A. (Author), Sergi, A. (Author), Serra, N. (Author), Serrano, J. (Author), Sestini, L. (Author), Seyfert, P. (Author), Shapkin, M. (Author), Shapoval, I. (Author), Shcheglov, Y. (Author), Shears, T. (Author), Shekhtman, L. (Author), Shevchenko, V. (Author), Siddi, B. G (Author), Silva Coutinho, R. (Author), Silva de Oliveira, L. (Author), Simi, G. (Author), Simone, S. (Author), Sirendi, M. (Author), Skidmore, N. (Author), Skwarnicki, T. (Author), Smith, E. (Author), Smith, I. T (Author), Smith, J. (Author), Smith, M. (Author), Soares Lavra, l. (Author), Sokoloff, M. D (Author), Soler, F. J. P (Author), Souza De Paula, B. (Author), Spaan, B. (Author), Spradlin, P. (Author), Sridharan, S. (Author), Stagni, F. (Author), Stahl, M. (Author), Stahl, S. (Author), Stefko, P. (Author), Stefkova, S. (Author), Steinkamp, O. (Author), Stemmle, S. (Author), Stenyakin, O. (Author), Stepanova, M. (Author), Stevens, H. (Author), Stone, S. (Author), Storaci, B. (Author), Stracka, S. (Author), Stramaglia, M. E (Author), Straticiuc, M. (Author), Straumann, U. (Author), Sun, L. (Author), Sutcliffe, W. (Author), Swientek, K. (Author), Syropoulos, V. (Author), Szczekowski, M. (Author), Szumlak, T. (Author), Szymanski, M. (Author), T'Jampens, S. (Author), Tayduganov, A. (Author), Tekampe, T. (Author), Tellarini, G. (Author), Teubert, F. (Author), Thomas, E. (Author), van Tilburg, J. (Author), Tilley, M. J (Author), Tisserand, V. (Author), Tobin, M. (Author), Tolk, S. (Author), Tomassetti, L. (Author), Tonelli, D. (Author), Toriello, F. (Author), Tourinho Jadallah Aoude, R. (Author), Tournefier, E. (Author), Traill, M. (Author), Tran, M. T (Author), Tresch, M. (Author), Trisovic, A. (Author), Tsaregorodtsev, A. (Author), Tsopelas, P. (Author), Tully, A. (Author), Tuning, N. (Author), Ukleja, A. (Author), Usachov, A. (Author), Ustyuzhanin, A. (Author), Uwer, U. (Author), Vacca, C. (Author), Vagner, A. (Author), Vagnoni, V. (Author), Valassi, A. (Author), Valat, S. (Author), Valenti, G. (Author), Vazquez Gomez, R. (Author), Vazquez Regueiro, P. (Author), Vecchi, S. (Author), van Veghel, M. (Author), Velthuis, J. J (Author), Veltri, M. (Author), Veneziano, G. (Author), Venkateswaran, A. (Author), Verlage, T. A (Author), Vernet, M. (Author), Vesterinen, M. (Author), Viana Barbosa, J. V (Author), Viaud, B. (Author), Vieira, D. (Author), Vieites Diaz, M. (Author), Viemann, H. (Author), Vilasis-Cardona, X. (Author), Vitti, M. (Author), Volkov, V. (Author), Vollhardt, A. (Author), Voneki, B. (Author), Vorobyev, A. (Author), Vorobyev, V. (Author), Voß, C. (Author), de Vries, J. A (Author), Vázquez Sierra, C. (Author), Waldi, R. (Author), Wallace, C. (Author), Wallace, R. (Author), Walsh, J. (Author), Wang, J. (Author), Ward, D. R (Author), Wark, H. M (Author), Watson, N. K (Author), Websdale, D. (Author), Weiden, A. (Author), Whitehead, M. (Author), Wicht, J. (Author), Wilkinson, G. (Author), Wilkinson, M. (Author), Williams, M. (Author), Williams, M. P (Author), Williams, T. (Author), Wilson, F. F (Author), Wimberley, J. (Author), Winn, M. A (Author), Wishahi, J. (Author), Wislicki, W. (Author), Witek, M. (Author), Wormser, G. (Author), Wotton, S. A (Author), Wraight, K. (Author), Wyllie, K. (Author), Xie, Y. (Author), Xu, Z. (Author), Yang, Z. (Author), Yao, Y. (Author), Yin, H. (Author), Yu, J. (Author), Yuan, X. (Author), Yushchenko, O. (Author), Zarebski, K. A (Author), Zavertyaev, M. (Author), Zhang, L. (Author), Zhang, Y. (Author), Zhelezov, A. (Author), Zheng, Y. (Author), Zhu, X. (Author), Zhukov, V. (Author), Zonneveld, J. B (Author), Zucchelli, S. (Author), LCHB Collaboration (Author), Boettcher, Thomas Julian (Contributor), Craik, Daniel C (Contributor), Ilten, Philip J (Contributor), Williams, Michael (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
• Format: Article
• Language: English
• Published: American Physical Society, 2018-04-19T15:50:01Z.
• Subjects: Article
• Online Access: Get fulltext

 The first observation of the D⁰→π⁺π⁻μ⁺μ⁻ and D⁰→K⁺K⁻μ⁺μ⁻ decays is reported using a sample of proton-proton collisions collected by LHCb at a center-of-mass energy of 8 TeV, and corresponding to 2  fb⁻¹ of integrated luminosity. The corresponding branching fractions are measured using as normalization the decay D⁰→K⁻π⁺[μ⁺μ⁻][subscript ρ⁰/ω], where the two muons are consistent with coming from the decay of a ρ⁰ or ω meson. The results are B(D⁰→π⁺π⁻μ⁺μ⁻)=(9.64±0.48±0.51±0.97)×10⁻⁷ and B(D⁰→K⁺K⁻μ⁺μ⁻)=(1.54±0.27±0.09±0.16)×10⁻⁷, where the uncertainties are statistical, systematic, and due to the limited knowledge of the normalization branching fraction. The dependence of the branching fraction on the dimuon mass is also investigated.