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Model-Independent Evidence for J/ψp Contributions to Λ_{b}^{0}→J/ψpK^{-} Decays.

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Title: Model-Independent Evidence for J/ψp Contributions to Λ_{b}^{0}→J/ψpK^{-} Decays.
Authors: Aaij, R
Abellán Beteta, C
Adeva, B
Adinolfi, M
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
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
Aquines Gutierrez, O
Archilli, F
D'Argent, P
Artamonov, A
Artuso, M
Aslanides, E
Auriemma, G
Baalouch, M
Bachmann, S
Back, JJ
Badalov, A
Baesso, C
Baker, S
Baldini, W
Barlow, RJ
Barschel, C
Barsuk, S
Barter, W
Batozskaya, V
Battista, V
Bay, A
Beaucourt, L
Beddow, J
Bedeschi, F
Bediaga, I
Bel, LJ
Bellee, V
Belloli, N
Belyaev, I
Ben-Haim, E
Bencivenni, G
Benson, S
Benton, J
Berezhnoy, A
Bernet, R
Bertolin, A
Betti, F
Bettler, MO
Van Beuzekom, M
Bifani, S
Billoir, P
Bird, T
Birnkraut, A
Bizzeti, A
Blake, T
Blanc, F
Blouw, J
Blusk, S
Bocci, V
Bondar, A
Bondar, N
Bonivento, W
Borgheresi, A
Borghi, S
Borisyak, M
Borsato, M
Boubdir, M
Bowcock, TJ
Bowen, E
Bozzi, C
Braun, S
Britsch, M
Britton, T
Brodzicka, J
Buchanan, E
Burr, C
Bursche, A
Buytaert, J
Cadeddu, S
Calabrese, R
Calvi, M
Calvo Gomez, M
Campana, P
Campora Perez, D
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
Cauet, C
Cavallero, G
Cenci, R
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chen, S
Cheung, SF
Chobanova, V
Chrzaszcz, M
Cid Vidal, X
Ciezarek, G
Clarke, PE
Clemencic, M
Cliff, HV
Closier, J
Coco, V
Cogan, J
Cogneras, E
Cogoni, V
Cojocariu, L
Collazuol, G
Collins, P
Comerma-Montells, A
Contu, A
Cook, A
Coquereau, S
Corti, G
Corvo, M
Couturier, B
Cowan, GA
Craik, DC
Crocombe, A
Cruz Torres, M
Cunliffe, S
Currie, R
D'Ambrosio, C
Dall'Occo, E
Dalseno, J
David, PN
Davis, A
De Aguiar Francisco, O
De Bruyn, K
De Capua, S
De Cian, M
De Miranda, JM
De Paula, L
De Simone, P
Dean, CT
Decamp, D
Deckenhoff, M
Del Buono, L
Déléage, N
Demmer, M
Dendek, A
Derkach, D
Deschamps, O
Dettori, F
Dey, B
Di Canto, A
Dijkstra, H
Dordei, F
Dorigo, M
Dosil Suárez, A
Dovbnya, A
Dreimanis, K
Dufour, L
Dujany, G
Dungs, K
Durante, P
Dzhelyadin, R
Dziurda, A
Dzyuba, A
Easo, S
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Eitschberger, U
Ekelhof, R
Eklund, L
El Rifai, I
Elsasser, C
Ely, S
Esen, S
Evans, HM
Evans, T
Falabella, A
Färber, C
Farley, N
Farry, S
Fay, R
Fazzini, D
Ferguson, D
Fernandez Albor, V
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Ferreira Rodrigues, F
Ferro-Luzzi, M
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Fiore, M
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Fitzpatrick, C
Fiutowski, T
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Gallas Torreira, A
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Gambetta, S
Gandelman, M
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García Pardiñas, J
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Garrido, L
Garsed, PJ
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Gersabeck, M
Gershon, T
Ghez, P
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Gibson, V
Girard, OG
Giubega, L
Gligorov, VV
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Gomes, A
Gotti, C
Grabalosa Gándara, M
Graciani Diaz, R
Granado Cardoso, LA
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Graziani, G
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Griffith, P
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Gushchin, E
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LHCb Collaboration
Item Type: Journal Article
Abstract: The data sample of Λ_{b}^{0}→J/ψpK^{-} decays acquired with the LHCb detector from 7 and 8 TeV pp collisions, corresponding to an integrated luminosity of 3  fb^{-1}, is inspected for the presence of J/ψp or J/ψK^{-} contributions with minimal assumptions about K^{-}p contributions. It is demonstrated at more than nine standard deviations that Λ_{b}^{0}→J/ψpK^{-} decays cannot be described with K^{-}p contributions alone, and that J/ψp contributions play a dominant role in this incompatibility. These model-independent results support the previously obtained model-dependent evidence for P_{c}^{+}→J/ψp charmonium-pentaquark states in the same data sample.
Issue Date: 18-Aug-2016
Date of Acceptance: 19-Apr-2016
URI: http://hdl.handle.net/10044/1/39845
DOI: http://dx.doi.org/10.1103/PhysRevLett.117.082002
ISSN: 1079-7114
Publisher: American Physical Society
Journal / Book Title: Physical Review Letters
Volume: 117
Issue: 8
Copyright Statement: © 2016 CERN, for the LHCb Collaboration. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Keywords: hep-ex
General Physics
02 Physical Sciences
Publication Status: Published
Open Access location: http://dx.doi.org/10.1103/PhysRevLett.117.082002
Article Number: 082002
Appears in Collections:Physics
High Energy Physics



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