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Observation of D⁰ meson decays to pi(+) pi(-) mu(+) mu(-) and K+ K- mu(+) mu(-) final states

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PhysRevLett.119.181805.pdfPublished version282.41 kBAdobe PDFView/Open
Title: Observation of D⁰ meson decays to pi(+) pi(-) mu(+) mu(-) and K+ K- mu(+) mu(-) final states
Authors: Aaij, R
Adeva, B
Adinolfi, M
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
Alfonso Albero, A
Ali, S
Alkhazov, G
Alvarez Cartelle, P
Alves, AA
Amato, S
Amerio, S
Amhis, Y
An, L
Anderlini, L
Andreassi, G
Andreotti, M
Andrews, JE
Appleby, RB
Archilli, F
D'Argent, P
Arnau Romeu, J
Artamonov, A
Artuso, M
Aslanides, E
Auriemma, G
Baalouch, M
Babuschkin, I
Bachmann, S
Back, JJ
Badalov, A
Baesso, C
Baker, S
Balagura, V
Baldini, W
Baranov, A
Barlow, RJ
Barschel, C
Barsuk, S
Barter, W
Baryshnikov, F
Batozskaya, V
Battista, V
Bay, A
Beaucourt, L
Beddow, J
Bedeschi, F
Bediaga, I
Beiter, A
Bel, LJ
Beliy, N
Bellee, V
Belloli, N
Belous, K
Belyaev, I
Ben-Haim, E
Bencivenni, G
Benson, S
Beranek, S
Berezhnoy, A
Bernet, R
Berninghoff, D
Bertholet, E
Bertolin, A
Betancourt, C
Betti, F
Bettler, M-O
Van Beuzekom, M
Bezshyiko, I
Bifani, S
Billoir, P
Birnkraut, A
Bitadze, A
Bizzeti, A
Bjørn, M
Blake, T
Blanc, F
Blouw, J
Blusk, S
Bocci, V
Boettcher, T
Bondar, A
Bondar, N
Bonivento, W
Bordyuzhin, I
Borgheresi, A
Borghi, S
Borisyak, M
Borsato, M
Bossu, F
Boubdir, M
Bowcock, TJV
Bowen, E
Bozzi, C
Braun, S
Britton, T
Brodzicka, J
Brundu, D
Buchanan, E
Burr, C
Bursche, A
Buytaert, J
Byczynski, W
Cadeddu, S
Cai, H
Calabrese, R
Calladine, R
Calvi, M
Calvo Gomez, M
Camboni, A
Campana, P
Campora Perez, DH
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carniti, P
Carson, L
Carvalho Akiba, K
Casse, G
Cassina, L
Castillo Garcia, L
Cattaneo, M
Cavallero, G
Cenci, R
Chamont, D
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chen, S
Cheung, SF
Chitic, S-G
Chobanova, V
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Cid Vidal, X
Ciezarek, G
Clarke, PEL
Clemencic, M
Cliff, HV
Closier, J
Cogan, J
Cogneras, E
Cogoni, V
Cojocariu, L
Collins, P
Colombo, T
Comerma-Montells, A
Contu, A
Cook, A
Coombs, G
Coquereau, S
Corti, G
Corvo, M
Costa Sobral, CM
Couturier, B
Cowan, GA
Craik, DC
Crocombe, A
Cruz Torres, M
Currie, R
D'Ambrosio, C
Da Cunha Marinho, F
Dall'Occo, E
Dalseno, J
Davis, A
De Aguiar Francisco, O
De Capua, S
De Cian, M
De Miranda, JM
De Paula, L
De Serio, M
De Simone, P
Dean, CT
Decamp, D
Del Buono, L
Dembinski, H-P
Demmer, M
Dendek, A
Derkach, D
Deschamps, O
Dettori, F
Dey, B
Di Canto, A
Di Nezza, P
Dijkstra, H
Dordei, F
Dorigo, M
Dosil Suárez, A
Douglas, L
Dovbnya, A
Dreimanis, K
Dufour, L
Dujany, G
Durante, P
Dzhelyadin, R
Dziewiecki, M
Dziurda, A
Dzyuba, A
Easo, S
Ebert, M
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Eitschberger, U
Ekelhof, R
Eklund, L
Ely, S
Esen, S
Evans, HM
Evans, T
Falabella, A
Farley, N
Farry, S
Fay, R
Fazzini, D
Federici, L
Ferguson, D
Fernandez, G
Fernandez Declara, P
Fernandez Prieto, A
Ferrari, F
Ferreira Rodrigues, F
Ferro-Luzzi, M
Filippov, S
Fini, RA
Fiore, M
Fiorini, M
Firlej, M
Fitzpatrick, C
Fiutowski, T
Fleuret, F
Fohl, K
Fontana, M
Fontanelli, F
Forshaw, DC
Forty, R
Franco Lima, V
Frank, M
Frei, C
Fu, J
Funk, W
Furfaro, E
Färber, C
Gabriel, E
Gallas Torreira, A
Galli, D
Gallorini, S
Gambetta, S
Gandelman, M
Gandini, P
Gao, Y
Garcia Martin, LM
García Pardiñas, J
Garra Tico, J
Garrido, L
Garsed, PJ
Gascon, D
Gaspar, C
Gavardi, L
Gazzoni, G
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Ghez, P
Gianì, S
Gibson, V
Girard, OG
Giubega, L
Gizdov, K
Gligorov, VV
Golubkov, D
Golutvin, A
Gomes, A
Gorelov, IV
Gotti, C
Govorkova, E
Grabowski, JP
Graciani Diaz, R
Granado Cardoso, LA
Graugés, E
Graverini, E
Graziani, G
Grecu, A
Greim, R
Griffith, P
Grillo, L
Gruber, L
Gruberg Cazon, BR
Grünberg, O
Gushchin, E
Guz, Y
Gys, T
Göbel, C
Hadavizadeh, T
Hadjivasiliou, C
Haefeli, G
Haen, C
Haines, SC
Hamilton, B
Han, X
Hancock, TH
Hansmann-Menzemer, S
Harnew, N
Harnew, ST
Harrison, J
Hasse, C
Hatch, M
He, J
Hecker, M
Heinicke, K
Heister, A
Hennessy, K
Henrard, P
Henry, L
Van Herwijnen, E
Heß, M
Hicheur, A
Hill, D
Hombach, C
Hopchev, PH
Huard, Z-C
Hulsbergen, W
Humair, T
Hushchyn, M
Hutchcroft, D
Ibis, P
Idzik, M
Ilten, P
Jacobsson, R
Jalocha, J
Jans, E
Jawahery, A
Jiang, F
John, M
Johnson, D
Jones, CR
Joram, C
Jost, B
Jurik, N
Kandybei, S
Karacson, M
Kariuki, JM
Karodia, S
Kazeev, N
Kecke, M
Kelsey, M
Kenzie, M
Ketel, T
Khairullin, E
Khanji, B
Khurewathanakul, C
Kirn, T
Klaver, S
Klimaszewski, K
Klimkovich, T
Koliiev, S
Kolpin, M
Komarov, I
Kopecna, R
Koppenburg, P
Kosmyntseva, A
Kotriakhova, S
Kozeiha, M
Kreps, M
Krokovny, P
Kruse, F
Krzemien, W
Kucewicz, W
Kucharczyk, M
Kudryavtsev, V
Kuonen, AK
Kurek, K
Kvaratskheliya, T
Lacarrere, D
Lafferty, G
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Lanfranchi, G
Langenbruch, C
Latham, T
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Le Gac, R
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Lemos Cid, E
Leroy, O
Lesiak, T
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Li, P-R
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Li, Z
Likhomanenko, T
Lindner, R
Lionetto, F
Lisovskyi, V
Liu, X
Loh, D
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Longstaff, I
Lopes, JH
Lucchesi, D
Lucio Martinez, M
Luo, H
Lupato, A
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Lupton, O
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Maciuc, F
Macko, V
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Witek, M
Wormser, G
Wotton, SA
Wraight, K
Wyllie, K
Xie, Y
Xu, Z
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Yang, Z
Yao, Y
Yin, H
Yu, J
Yuan, X
Yushchenko, O
Zarebski, KA
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Zhelezov, A
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LHCb Collaboration
Item Type: Journal Article
Abstract: The first observation of the D^{0}→π^{+}π^{-}μ^{+}μ^{-} and D^{0}→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 D^{0}→K^{-}π^{+}[μ^{+}μ^{-}]_{ρ^{0}/ω}, where the two muons are consistent with coming from the decay of a ρ^{0} or ω meson. The results are B(D^{0}→π^{+}π^{-}μ^{+}μ^{-})=(9.64±0.48±0.51±0.97)×10^{-7} and B(D^{0}→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.
Issue Date: 31-Oct-2017
Date of Acceptance: 26-Jul-2017
URI: http://hdl.handle.net/10044/1/57567
DOI: https://dx.doi.org/10.1103/PhysRevLett.119.181805
ISSN: 0031-9007
Publisher: American Physical Society
Start Page: 181805
End Page: 181805
Journal / Book Title: Physical Review Letters
Volume: 119
Issue: 18
Copyright Statement: © 2017 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Keywords: Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
SEARCH
RARE
LHCb Collaboration
hep-ex
02 Physical Sciences
General Physics
Publication Status: Published
Conference Place: United States
Open Access location: http://dx.doi.org/10.1103/PhysRevLett.119.181805
Appears in Collections:Physics
High Energy Physics



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