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Search for the lepton flavour violating decay B+ → K+μ−τ+ using B∗0s2 decays

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Title: Search for the lepton flavour violating decay B+ → K+μ−τ+ using B∗0s2 decays
Authors: Aaij, R
Abellán Beteta, C
Ackernley, T
Adeva, B
Adinolfi, M
Afsharnia, H
Aidala, CA
Aiola, S
Ajaltouni, Z
Akar, S
Albicocco, P
Albrecht, J
Alessio, F
Alexander, M
Alfonso Albero, A
Alkhazov, G
Alvarez Cartelle, P
Alves, AA
Amato, S
Amhis, Y
An, L
Anderlini, L
Andreassi, G
Andreotti, M
Archilli, F
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
Basels, JM
Bassi, G
Batozskaya, V
Batsukh, B
Battig, A
Bay, A
Becker, M
Bedeschi, F
Bediaga, I
Beiter, A
Bel, LJ
Belavin, V
Belin, S
Bellee, V
Belous, K
Belyaev, I
Bencivenni, G
Ben-Haim, E
Benson, S
Beranek, S
Berezhnoy, A
Bernet, R
Berninghoff, D
Bernstein, HC
Bertella, C
Bertholet, E
Bertolin, A
Betancourt, C
Betti, F
Bettler, MO
Bezshyiko, I
Bhasin, S
Bhom, J
Bieker, MS
Bifani, S
Billoir, P
Bizzeti, A
Bjørn, M
Blago, MP
Blake, T
Blanc, F
Blusk, S
Bobulska, D
Bocci, V
Boente Garcia, O
Boettcher, T
Boldyrev, A
Bondar, A
Bondar, N
Borghi, S
Borisyak, M
Borsato, M
Borsuk, JT
Bowcock, TJV
Bozzi, C
Bradley, MJ
Braun, S
Brea Rodriguez, A
Brodski, M
Brodzicka, J
Brossa Gonzalo, A
Brundu, D
Buchanan, E
Büchler-Germann, A
Buonaura, A
Burr, C
Bursche, A
Butkevich, A
Butter, JS
Buytaert, J
Byczynski, W
Cadeddu, S
Cai, H
Calabrese, R
Calero Diaz, L
Cali, S
Calladine, R
Calvi, M
Calvo Gomez, M
Camargo Magalhaes, P
Camboni, A
Campana, P
Campora Perez, DH
Campoverde Quezada, AF
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carli, I
Carniti, P
Carvalho Akiba, K
Casais Vidal, A
Casse, G
Cattaneo, M
Cavallero, G
Celani, S
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
Cholak, S
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Cicala, MF
Cid Vidal, X
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
Costa Sobral, CM
Couturier, B
Craik, DC
Crkovská, J
Crocombe, A
Cruz Torres, M
Currie, R
Da Silva, CL
Dall’Occo, E
Dalseno, J
D’Ambrosio, C
Danilina, A
D’Argent, P
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
De Vries, JA
Dean, CT
Dean, W
Decamp, D
Del Buono, L
Delaney, B
Dembinski, H-P
Dendek, A
Denysenko, V
Derkach, D
Deschamps, O
Desse, F
Dettori, F
Dey, B
Di Canto, A
Di Nezza, P
Didenko, S
Dijkstra, H
Dobishuk, V
Dordei, F
Dorigo, M
Dos Reis, AC
Douglas, L
Dovbnya, A
Dreimanis, K
Dudek, MW
Dufour, L
Dujany, G
Durante, P
Durham, JM
Dutta, D
Dziewiecki, M
Dziurda, A
Dzyuba, A
Easo, S
Egede, U
Egorychev, V
Eidelman, S
Eisenhardt, S
Ekelhof, R
Ek-In, S
Eklund, L
Ely, S
Ene, A
Epple, E
Escher, S
Esen, S
Evans, T
Falabella, A
Fan, J
Farley, N
Farry, S
Fazzini, D
Fedin, P
Féo, M
Fernandez Declara, P
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Ferrari, F
Ferreira Lopes, L
Ferreira Rodrigues, F
Ferreres Sole, S
Ferrillo, M
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
Franco Lima, V
Franco Sevilla, M
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Frei, C
Friday, DA
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Fuehring, Q
Funk, W
Gabriel, E
Gallas Torreira, A
Galli, D
Gallorini, S
Gambetta, S
Gan, Y
Gandelman, M
Gandini, P
Gao, Y
Garcia Martin, LM
García Pardiñas, J
Garcia Plana, B
Garcia Rosales, FA
Garrido, L
Gascon, D
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Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Gerstel, D
Ghez, P
Gibson, V
Gioventù, A
Girard, OG
Gironella Gironell, P
Giubega, L
Giugliano, C
Gizdov, K
Gligorov, VV
Göbel, C
Golubkov, D
Golutvin, A
Gomes, A
Gorbounov, P
Gorelov, IV
Gotti, C
Govorkova, E
Grabowski, JP
Graciani Diaz, R
Grammatico, T
Granado Cardoso, LA
Graugés, E
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Grecu, A
Greim, R
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Grillo, L
Gruber, L
Gruberg Cazon, BR
Gu, C
Gushchin, E
Guth, A
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Gys, T
Günther, PA
Hadavizadeh, T
Haefeli, G
Haen, C
Haines, SC
Hamilton, PM
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Hancock, TH
Hansmann-Menzemer, S
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Item Type: Journal Article
Abstract: A search is presented for the lepton flavour violating decay B+ → K+μ−τ+ using a sample of proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb−1. The τ leptons are selected inclusively, primarily via decays with a single charged particle. The four-momentum of the τ lepton is determined by using B+ mesons from B∗0s2→B+K− decays. No significant excess is observed, and an upper limit is set on the branching fraction ℬ(B+ → K+μ−τ+) < 3.9 × 10−5 at 90 %  confidence level. The obtained limit is comparable to the world-best limit.
Issue Date: Jun-2020
Date of Acceptance: 25-May-2020
URI: http://hdl.handle.net/10044/1/81997
DOI: 10.1007/jhep06(2020)129
ISSN: 1029-8479
Publisher: IOP Publishing
Start Page: 1
End Page: 19
Journal / Book Title: The Journal of High Energy Physics
Volume: 2020
Issue: 6
Copyright Statement: © 2020 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: 0105 Mathematical Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0206 Quantum Physics
Nuclear & Particles Physics
Publication Status: Published
Open Access location: https://link.springer.com/content/pdf/10.1007/JHEP06(2020)129.pdf
Article Number: 129
Online Publication Date: 2020-06-22
Appears in Collections:Physics
High Energy Physics



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