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Updated measurement of time-dependent CP -violating observables in B⁰s→J/ψK+K− decays

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Title: Updated measurement of time-dependent CP -violating observables in B⁰s→J/ψK+K− decays
Authors: Aaij, R
Beteta, CA
Ackernley, T
Adeva, B
Adinolfi, M
Afsharnia, H
Aidala, CA
Aiola, S
Ajaltouni, Z
Akar, S
Albicocco, P
Albrecht, J
Alessio, F
Alexander, M
Albero, AA
Alkhazov, G
Cartelle, PA
Jr, AAA
Amato, S
Amhis, Y
An, L
Anderlini, L
Andreassi, G
Andreotti, M
Archilli, F
D'Argent, P
Romeu, JA
Artamonov, A
Artuso, M
Arzymatov, K
Aslanides, E
Atzeni, M
Audurier, B
Bachmann, S
Back, JJ
Baker, S
Balagura, V
Baldini, W
Baranov, A
Barlow, RJ
Barsuk, S
Barter, W
Bartolini, M
Baryshnikov, F
Bassi, G
Batozskaya, V
Batsukh, B
Battig, A
Battista, V
Bay, A
Becker, M
Bedeschi, F
Bediaga, I
Beiter, A
Bel, LJ
Belavin, V
Belin, S
Beliy, N
Bellee, V
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, MO
Beuzekom, MV
Bezshyiko, I
Bhasin, S
Bhom, J
Bieker, MS
Bifani, S
Billoir, P
Birnkraut, A
Bizzeti, A
Bjorn, M
Blago, MP
Blake, T
Blanc, F
Blusk, S
Bobulska, D
Bocci, V
Garcia, OB
Boettcher, T
Boldyrev, A
Bondar, A
Bondar, N
Borghi, S
Borisyak, M
Borsato, M
Borsuk, JT
Boubdir, M
Bowcock, TJV
Bozzi, C
Braun, S
Rodriguez, AB
Brodski, M
Brodzicka, J
Gonzalo, AB
Brundu, D
Buchanan, E
Buonaura, A
Burr, C
Bursche, A
Butter, JS
Buytaert, J
Byczynski, W
Cadeddu, S
Cai, H
Calabrese, R
Cali, S
Calladine, R
Calvi, M
Gomez, MC
Camboni, A
Campana, P
Perez, DHC
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carniti, P
Akiba, KC
Vidal, AC
Casse, G
Cattaneo, M
Cavallero, G
Cenci, R
Cerasoli, J
Chapman, MG
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chekalina, V
Chen, C
Chen, S
Chernov, A
Chitic, S-G
Chobanova, V
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Cicala, MF
Vidal, XC
Ciezarek, G
Cindolo, F
Clarke, PEL
Clemencic, M
Cliff, HV
Closier, J
Cobbledick, JL
Coco, V
Coelho, JAB
Cogan, J
Cogneras, E
Cojocariu, L
Collins, P
Colombo, T
Comerma-Montells, A
Contu, A
Cooke, N
Coombs, G
Coquereau, S
Corti, G
Sobral, CMC
Couturier, B
Cowan, GA
Craik, DC
Crocombe, A
Torres, MC
Currie, R
D'Ambrosio, C
Da Silva, CL
Dall'Occo, E
Dalseno, J
Danilina, A
Davis, A
De Aguiar Francisco, O
De Bruyn, K
De Capua, S
De Cian, M
De Miranda, JM
De Paula, L
De Serio, M
De Simone, P
Dean, CT
Dean, W
Decamp, D
Buono, LD
Delaney, B
Dembinski, H-P
Demmer, M
Dendek, A
Denysenko, V
Derkach, D
Deschamps, O
Desse, F
Dettori, F
Dey, B
Canto, AD
Nezza, PD
Didenko, S
Dijkstra, H
Dordei, F
Dorigo, M
Suarez, AD
Douglas, L
Dovbnya, A
Dreimanis, K
Dudek, MW
Dufour, L
Dujany, G
Durante, P
Durham, JM
Dutta, D
Dzhelyadin, R
Dziewiecki, M
Dziurda, A
Dzyuba, A
Easo, S
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Ek-In, S
Ekelhof, R
Eklund, L
Ely, S
Ene, A
Escher, S
Esen, S
Evans, T
Falabella, A
Fan, J
Farley, N
Farry, S
Fazzini, D
Declara, PF
Prieto, AF
Ferrari, F
Lopes, LF
Rodrigues, FF
Sole, SF
Ferro-Luzzi, M
Filippov, S
Fini, RA
Fiorini, M
Firlej, M
Fischer, KM
Fitzpatrick, C
Fiutowski, T
Fleuret, F
Fontana, M
Fontanelli, F
Forty, R
Lima, VF
Sevilla, MF
Frank, M
Frei, C
Friday, DA
Fu, J
Funk, W
Feo, M
Gabriel, E
Torreira, AG
Galli, D
Gallorini, S
Gambetta, S
Gan, Y
Gandelman, M
Gandini, P
Gao, Y
Martin, LMG
Plana, BG
Rosales, FAG
Pardinas, JG
Tico, JG
Garrido, L
Gascon, D
Gaspar, C
Gazzoni, G
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Gerstel, D
Ghez, P
Gibson, V
Gioventu, A
Girard, OG
Gironell, PG
Giubega, L
Giugliano, C
Gizdov, K
Gligorov, VV
Golubkov, D
Golutvin, A
Gomes, A
Gorelov, IV
Gotti, C
Govorkova, E
Grabowski, JP
Diaz, RG
Grammatico, T
Cardoso, LAG
Grauges, E
Graverini, E
Graziani, G
Grecu, A
Greim, R
Griffith, P
Grillo, L
Gruber, L
Cazon, BRG
Gu, C
Guo, X
Gushchin, E
Guth, A
Guz, Y
Gys, T
Goebel, C
Hadavizadeh, T
Hadjivasiliou, C
Haefeli, G
Haen, C
Haines, SC
Hamilton, PM
Han, Q
Han, X
Hancock, TH
Hansmann-Menzemer, S
Harnew, N
Harrison, T
Hasse, C
Hatch, M
He, J
Hecker, M
Heijhoff, K
Heinicke, K
Heister, A
Hennequin, AM
Hennessy, K
Henry, L
Herwijnen, EV
Heuel, J
Hess, M
Hicheur, A
Charman, RH
Hill, D
Hilton, M
Hopchev, PH
Hu, J
Hu, W
Huang, W
Huard, ZC
Hulsbergen, W
Humair, T
Hunter, RJ
Hushchyn, M
Hutchcroft, D
Hynds, D
Ibis, P
Idzik, M
Ilten, P
Inglessi, A
Inyakin, A
Ivshin, K
Jacobsson, R
Jakobsen, S
Jalocha, J
Jans, E
Jashal, BK
Jawahery, A
Jevtic, V
Jiang, F
John, M
Johnson, D
Jones, CR
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Jurik, N
Kandybei, S
Karacson, M
Kariuki, JM
Karodia, S
Kazeev, N
Kecke, M
Keizer, F
Kelsey, M
Kenzie, M
Ketel, T
Khanji, B
Kharisova, A
Khurewathanakul, C
Kim, KE
Kirn, T
Kirsebom, VS
Klaver, S
Klimaszewski, K
Padmalayammadam, PK
Koliiev, S
Kondybayeva, A
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Kopciewicz, P
Kopecna, R
Koppenburg, P
Kostiuk, I
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Kotriakhova, S
Kozeiha, M
Kravchuk, L
Krawczyk, RD
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Kuonen, AK
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Item Type: Journal Article
Abstract: The decay-time-dependent CP asymmetry in B0s→J/ψK+K− decays is measured using proton–proton collision data, corresponding to an integrated luminosity of 1.9fb−1 , collected with the LHCb detector at a centre-of-mass energy of 13TeV in 2015 and 2016. Using a sample of approximately 117 000 signal decays with an invariant K+K− mass in the vicinity of the ϕ(1020) resonance, the CP -violating phase ϕs is measured, along with the difference in decay widths of the light and heavy mass eigenstates of the B0s - B¯¯¯¯0s system, ΔΓs . The difference of the average B0s and B0 meson decay widths, Γs−Γd , is determined using in addition a sample of B0→J/ψK+π− decays. The values obtained are ϕs=−0.083±0.041±0.006rad , ΔΓs=0.077±0.008±0.003ps−1 and Γs−Γd=−0.0041±0.0024±0.0015ps−1 , where the first uncertainty is statistical and the second systematic. These are the most precise single measurements of these quantities to date and are consistent with expectations based on the Standard Model and with a previous LHCb analysis of this decay using data recorded at centre-of-mass energies 7 and 8 TeV. Finally, the results are combined with recent results from B0s→J/ψπ+π− decays obtained using the same dataset as this analysis, and with previous independent LHCb results.
Issue Date: 1-Aug-2019
Date of Acceptance: 18-Jul-2019
URI: http://hdl.handle.net/10044/1/73378
DOI: https://dx.doi.org/10.1140/epjc/s10052-019-7159-8
ISSN: 1124-1861
Publisher: Springer Verlag (Germany)
Journal / Book Title: European Physical Journal C: Particles and Fields
Volume: 79
Issue: 8
Copyright Statement: © The Author(s) 2019. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Keywords: Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
WIDTH DIFFERENCE
PHASE PHI(S)
PRECISION
BEAUTY
TOOL
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
WIDTH DIFFERENCE
PHASE PHI(S)
PRECISION
BEAUTY
TOOL
hep-ex
hep-ex
Nuclear & Particles Physics
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Publication Status: Published
Article Number: ARTN 706
Online Publication Date: 2019-08-22
Appears in Collections:Physics
High Energy Physics



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