Search for CP violation in $D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}$ and $D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} π^{\pm}$ decays

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Title: Search for CP violation in $D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}$ and $D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} π^{\pm}$ decays
Authors: Collaboration, L
Aaij, R
Adeva, B
Adinolfi, M
Affolder, A
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
Ali, S
Alkhazov, G
Cartelle, PA
Jr, AAA
Amato, S
Amerio, S
Amhis, Y
An, L
Anderlini, L
Anderson, J
Andreassen, R
Andreotti, M
Andrews, JE
Appleby, RB
Gutierrez, OA
Archilli, F
Artamonov, A
Artuso, M
Aslanides, E
Auriemma, G
Baalouch, M
Bachmann, S
Back, JJ
Badalov, A
Balagura, V
Baldini, W
Barlow, RJ
Barschel, C
Barsuk, S
Barter, W
Batozskaya, V
Battista, V
Bay, A
Beaucourt, L
Beddow, J
Bedeschi, F
Bediaga, I
Belogurov, S
Belous, K
Belyaev, I
Ben-Haim, E
Bencivenni, G
Benson, S
Benton, J
Berezhnoy, A
Bernet, R
Bettler, M-O
Beuzekom, MV
Bien, A
Bifani, S
Bird, T
Bizzeti, A
Bjørnstad, PM
Blake, T
Blanc, F
Blouw, J
Blusk, S
Bocci, V
Bondar, A
Bondar, N
Bonivento, W
Borghi, S
Borgia, A
Borsato, M
Bowcock, TJV
Bowen, E
Bozzi, C
Brambach, T
Brand, JVD
Bressieux, J
Brett, D
Britsch, M
Britton, T
Brodzicka, J
Brook, NH
Brown, H
Bursche, A
Busetto, G
Buytaert, J
Cadeddu, S
Calabrese, R
Calvi, M
Gomez, MC
Camboni, A
Campana, P
Perez, DC
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carranza-Mejia, H
Carson, L
Akiba, KC
Casse, G
Cassina, L
Garcia, LC
Cattaneo, M
Cauet, C
Cenci, R
Charles, M
Charpentier, P
Chen, S
Cheung, S-F
Chiapolini, N
Chrzaszcz, M
Ciba, K
Vidal, XC
Ciezarek, G
Clarke, PEL
Clemencic, M
Cliff, HV
Closier, J
Coco, V
Cogan, J
Cogneras, E
Collins, P
Comerma-Montells, A
Contu, A
Cook, A
Coombes, M
Coquereau, S
Corti, G
Corvo, M
Counts, I
Couturier, B
Cowan, GA
Craik, DC
Torres, MC
Cunliffe, S
Currie, R
D'Ambrosio, C
Dalseno, J
David, P
David, PNY
Davis, A
Bruyn, KD
Capua, SD
Cian, MD
Miranda, JMD
Paula, LD
Silva, WD
Simone, PD
Decamp, D
Deckenhoff, M
Buono, LD
Déléage, N
Derkach, D
Deschamps, O
Dettori, F
Canto, AD
Dijkstra, H
Donleavy, S
Dordei, F
Dorigo, M
Suárez, AD
Dossett, D
Dovbnya, A
Dreimanis, K
Dujany, G
Dupertuis, F
Durante, P
Dzhelyadin, R
Dziurda, A
Dzyuba, A
Easo, S
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Eitschberger, U
Ekelhof, R
Eklund, L
Rifai, IE
Elsasser, C
Ely, S
Esen, S
Evans, T
Falabella, A
Färber, C
Farinelli, C
Farley, N
Farry, S
Fay, RF
Ferguson, D
Albor, VF
Rodrigues, FF
Ferro-Luzzi, M
Filippov, S
Fiore, M
Fiorini, M
Firlej, M
Fitzpatrick, C
Fiutowski, T
Fontana, M
Fontanelli, F
Forty, R
Francisco, O
Frank, M
Frei, C
Frosini, M
Fu, J
Furfaro, E
Torreira, AG
Galli, D
Gallorini, S
Gambetta, S
Gandelman, M
Gandini, P
Gao, Y
Garofoli, J
Tico, JG
Garrido, L
Gaspar, C
Gauld, R
Gavardi, L
Gavrilov, G
Gersabeck, E
Gersabeck, M
Gershon, T
Ghez, P
Gianelle, A
Giani', S
Gibson, V
Giubega, L
Gligorov, VV
Göbel, C
Golubkov, D
Golutvin, A
Gomes, A
Gordon, H
Gotti, C
Gándara, MG
Diaz, RG
Cardoso, LAG
Graugés, E
Graziani, G
Grecu, A
Greening, E
Gregson, S
Griffith, P
Grillo, L
Grünberg, O
Gui, B
Gushchin, E
Guz, Y
Gys, T
Hadjivasiliou, C
Haefeli, G
Haen, C
Haines, SC
Hall, S
Hamilton, B
Hampson, T
Han, X
Hansmann-Menzemer, S
Harnew, N
Harnew, ST
Harrison, J
Hartmann, T
He, J
Head, T
Heijne, V
Hennessy, K
Henrard, P
Henry, L
Morata, JAH
Herwijnen, EV
Heß, M
Hicheur, A
Hill, D
Hoballah, M
Hombach, C
Hulsbergen, W
Hunt, P
Hussain, N
Hutchcroft, D
Hynds, D
Idzik, M
Ilten, P
Jacobsson, R
Jaeger, A
Jalocha, J
Jans, E
Jaton, P
Jawahery, A
Jing, F
John, M
Johnson, D
Jones, CR
Joram, C
Jost, B
Jurik, N
Kaballo, M
Kandybei, S
Kanso, W
Karacson, M
Karbach, TM
Karodia, S
Kelsey, M
Kenyon, IR
Ketel, T
Khanji, B
Khurewathanakul, C
Klaver, S
Kochebina, O
Kolpin, M
Komarov, I
Koopman, RF
Koppenburg, P
Korolev, M
Kozlinskiy, A
Kravchuk, L
Kreplin, K
Kreps, M
Krocker, G
Krokovny, P
Kruse, F
Kucewicz, W
Kucharczyk, M
Kudryavtsev, V
Kurek, K
Kvaratskheliya, T
Thi, VNL
Lacarrere, D
Lafferty, G
Lai, A
Lambert, D
Lambert, RW
Lanciotti, E
Lanfranchi, G
Langenbruch, C
Langhans, B
Latham, T
Lazzeroni, C
Gac, RL
Leerdam, JV
Lees, J-P
Lefèvre, R
Leflat, A
Lefrançois, J
Leo, S
Leroy, O
Lesiak, T
Leverington, B
Li, Y
Liles, M
Lindner, R
Linn, C
Lionetto, F
Liu, B
Liu, G
Lohn, S
Longstaff, I
Lopes, JH
Lopez-March, N
Lowdon, P
Lu, H
Lucchesi, D
Luo, H
Lupato, A
Luppi, E
Lupton, O
Machefert, F
Machikhiliyan, IV
Maciuc, F
Maev, O
Malde, S
Manca, G
Mancinelli, G
Maratas, J
Marchand, JF
Marconi, U
Benito, CM
Marino, P
Märki, R
Marks, J
Martellotti, G
Martens, A
Sánchez, AM
Martinelli, M
Santos, DM
Vidal, FM
Tostes, DM
Massafferri, A
Matev, R
Mathe, Z
Matteuzzi, C
Mazurov, A
McCann, M
McCarthy, J
McNab, A
McNulty, R
McSkelly, B
Meadows, B
Meier, F
Meissner, M
Merk, M
Milanes, DA
Minard, M-N
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Rodriguez, JM
Monteil, S
Morandin, M
Morawski, P
Mordà, A
Morello, MJ
Moron, J
Morris, A-B
Mountain, R
Muheim, F
Müller, K
Muresan, R
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Naik, P
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Nandakumar, R
Nasteva
Needham, M
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Niess, V
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Item Type: Journal Article
Abstract: A search for \CP violation in Cabibbo-suppressed $D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}$ and $D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}$ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of 3~fb$^{-1}$, recorded by the LHCb experiment. The individual $CP$-violating asymmetries are measured to be \begin{eqnarray*} \mathcal{A}_{CP}^{D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}} & = & (+0.03 \pm 0.17 \pm 0.14) \% \mathcal{A}_{CP}^{D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}} & = & (+0.38 \pm 0.46 \pm 0.17) \%, \end{eqnarray*} assuming that $CP$ violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes $D^{\pm}_{(s)}\rightarrow K^0_{\mathrm{S}} K^{\pm}$ and $D^{\pm}_{(s)}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}$ gives the sum \[ \mathcal{A}_{CP}^{D^{\pm}\rightarrow K^0_{\mathrm{S}} K^{\pm}} + \mathcal{A}_{CP}^{D^{\pm}_{s}\rightarrow K^0_{\mathrm{S}} \pi^{\pm}} = (+0.41 \pm 0.49 \pm 0.26) \%. \] In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation.
Issue Date: 31-Oct-2014
Date of Acceptance: 9-Sep-2014
URI: http://hdl.handle.net/10044/1/61014
DOI: https://dx.doi.org/10.1007/JHEP10(2014)025
ISSN: 1029-8479
Publisher: Springer Verlag (Germany)
Journal / Book Title: Journal of High Energy Physics
Volume: 2014
Issue: 10
Copyright Statement: © 2014 The Author(s). This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 - https://creativecommons.org/licenses/by/4.0/), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Keywords: hep-ex
01 Mathematical Sciences
02 Physical Sciences
Nuclear & Particles Physics
Publication Status: Published
Open Access location: https://doi.org/10.1007/JHEP10(2014)025
Article Number: 25
Online Publication Date: 2014-10-03
Appears in Collections:Physics
High Energy Physics



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