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Measurement of CP violation in B-0 -> J/psi K-S(0) and B-0 -> psi(2S) K-S(0) decays

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Title: Measurement of CP violation in B-0 -> J/psi K-S(0) and B-0 -> psi(2S) K-S(0) decays
Authors: Aaij, R
Adeva, B
Adinolfi, M
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
Albero, AA
Ali, S
Alkhazov, G
Cartelle, PA
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
Romeu, JA
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
Berningho, D
Bertholet, E
Bertolin, A
Betancourt, C
Betti, F
Bettler, M-O
Van Beuzekom, M
Bezshyiko, I
Bifani, S
Billoir, P
Birnkraut, A
Bizzeti, A
Bjorn, M
Blake, T
Blanc, F
Blusk, S
Bocci, V
Boettcher, T
Bondar, A
Bondar, N
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
Gomez, MC
Camboni, A
Campana, P
Perez, DHC
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carniti, P
Carson, L
Akiba, KC
Casse, G
Cassina, L
Cattaneo, M
Cavallero, G
Cenci, R
Chamont, D
Chapman, MG
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chen, S
Cheung, SF
Chitic, S-G
Chobanova, V
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Vidal, XC
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
Sobral, CMC
Couturier, B
Cowan, GA
Craik, DC
Crocombe, A
Torres, MC
Currie, R
D'Ambrosio, C
Marinho, FDC
Dall'Occo, E
Dalseno, J
Davis, A
Francisco, ODA
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
Suarez, AD
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
Suarez, AD
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
Fazzini, D
Federici, L
Ferguson, D
Fernandez, G
Declara, PF
Prieto, AF
Ferrari, F
Rodrigues, FF
Ferro-Luzzi, M
Filippov, S
Fini, RA
Fiorini, M
Firlej, M
Fitzpatrick, C
Fiutowski, T
Fleuret, F
Fohl, K
Fontana, M
Fontanelli, F
Forshaw, DC
Forty, R
Lima, VF
Frank, M
Frei, C
Fu, J
Funk, W
Furfaro, E
Farber, C
Gabriel, E
Torreira, AG
Galli, D
Gallorini, S
Gambetta, S
Gandelman, M
Gandini, P
Gao, Y
Martin, LMG
Pardinas, JG
Tico, JG
Garrido, L
Garsed, PJ
Gascon, D
Gaspar, C
Gavardi, L
Gazzoni, G
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Ghez, P
Giani, 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
Diaz, RG
Cardoso, LAG
Grauges, E
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Graziani, G
Grecu, A
Greim, R
Griffith, P
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Cazon, BRG
Grunberg, O
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Guz, Y
Gys, T
Gobel, C
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Haefeli, G
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Hansmann-Menzemer, S
Harnew, N
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Hasse, C
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Heinicke, K
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Hennessy, K
Henrard, P
Henry, L
Van Herwijnen, E
Hess, M
Hicheur, A
Hill, D
Hombach, C
Hopchev, PH
Hu, W
Huard, ZC
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
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Jurik, N
Kandybei, S
Karacson, M
Kariuki, JM
Karodia, S
Kazeev, N
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Kenzie, M
Ketel, T
Khairullin, E
Khanji, B
Khurewathanakul, C
Kirn, T
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Klimkovich, T
Koliiev, S
Kolpin, M
Komarov, I
Kopecna, R
Koppenburg, P
Kosmyntseva, A
Kotriakhova, S
Kozeiha, M
Kravchuk, L
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Kress, F
Krokovny, P
Kruse, F
Krzemien, W
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Kudryavtsev, V
Kuonen, AK
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Yao, Y
Yin, H
Yu, J
Yuan, X
Yushchenko, O
Zarebski, KA
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Item Type: Journal Article
Abstract: A measurement is presented of decay-time-dependent CP violation in the decays B0 → J/ψ KS0 and B0 → ψ(2S)KS0, where the J/ψ is reconstructed from two electrons and the ψ(2S) from two muons. The analysis uses a sample of pp collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. The CP -violation observables are measured to be C(B0→J/ψK0S)=0.12±0.07±0.02,S(B0→J/ψK0S)=0.83±0.08±0.01,C(B0→ψ(2S)K0S)=−0.05±0.10±0.01,S(B0→ψ(2S)K0S)=0.84±0.10±0.01, C(B0→J/ψKS0)=0.12±0.07±0.02,S(B0→J/ψKS0)=0.83±0.08±0.01,C(B0→ψ(2S)KS0)=−0.05±0.10±0.01,S(B0→ψ(2S)KS0)=0.84±0.10±0.01, where C describes CP violation in the direct decay, and S describes CP violation in the interference between the amplitudes for the direct decay and for the decay after B0−B¯¯¯¯0B0−B¯0 oscillation. The first uncertainties are statistical and the second are systematic. The two sets of results are compatible with the previous LHCb measurement using B0 → J/ψ KS0 decays, where the J/ψ meson was reconstructed from two muons. The averages of all three sets of LHCb results are C(B0→[cc¯¯]K0S)=−0.017±0.029,S(B0→[cc¯¯]K0S)=0.760±0.034, C(B0→[cc¯]KS0)=−0.017±0.029,S(B0→[cc¯]KS0)=0.760±0.034, under the assumption that higher-order contributions to the decay amplitudes are negligible. The uncertainties include statistical and systematic contributions.
Issue Date: 27-Nov-2017
Date of Acceptance: 12-Nov-2017
URI: http://hdl.handle.net/10044/1/55354
DOI: https://dx.doi.org/10.1007/JHEP11(2017)170
ISSN: 1029-8479
Publisher: Springer Verlag (Germany)
Journal / Book Title: Journal of High Energy Physics
Volume: 2017
Issue: 11
Copyright Statement: Open Access, Copyright CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3
Keywords: Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
B physics
CKM angle beta
CP violation
Flavor physics
Hadron-Hadron scattering (experiments)
DISTRIBUTIONS
ERRORS
01 Mathematical Sciences
02 Physical Sciences
Nuclear & Particles Physics
Publication Status: Published
Article Number: 170
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