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First Observation of the Radiative Decay Lambda(0 )(b)-> Lambda gamma

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PhysRevLett.123.031801.pdfPublished version304.84 kBAdobe PDFView/Open
Title: First Observation of the Radiative Decay Lambda(0 )(b)-> Lambda gamma
Authors: Aaij, R
Beteta, CA
Adeva, B
Adinolfi, M
Aidala, CA
Ajaltouni, Z
Akar, S
Albicocco, P
Albrecht, J
Alessio, F
Alexander, M
Alfonso Albero, A
Alkhazov, G
Cartelle, PA
Alves Jr, AA
Amato, S
Amhis, Y
An, L
Anderlini, L
Andreassi, G
Andreotti, M
Andrews, JE
Archilli, F
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
Batozskaya, V
Batsukh, B
Battig, A
Battista, V
Bay, A
Bedeschi, F
Bediaga, I
Beiter, A
Bel, LJ
Belin, S
Beliy, N
Bellee, V
Belloli, N
Belous, K
Belyaev, I
Bencivenni, G
Ben-Haim, E
Benson, S
Beranek, S
Berezhnoy, A
Bernet, R
Berninghoff, D
Bertholet, E
Bertolin, A
Betancourt, C
Betti, F
Bettler, MO
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
Boente Garcia, O
Boettcher, T
Bondar, A
Bondar, N
Borghi, S
Borisyak, M
Borsato, M
Boubdir, M
Bowcock, TJ
Bozzi, C
Braun, S
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
Calvo Gomez, M
Camboni, A
Campana, P
Perez, DHC
Capriotti, L
Carbone, A
Carboni, G
Cardinale, R
Cardini, A
Carniti, P
Carvalho Akiba, K
Casse, G
Cattaneo, M
Cavallero, G
Cenci, R
Chapman, MG
Charles, M
Charpentier, P
Chatzikonstantinidis, G
Chefdeville, M
Chekalina, V
Chen, C
Chen, S
Chitic, S-G
Chobanova, V
Chrzaszcz, M
Chubykin, A
Ciambrone, P
Cid Vidal, X
Ciezarek, G
Cindolo, F
Clarke, PEL
Clemencic, M
Cliff, H
Closier, J
Coco, V
Coelho, JAB
Cogan, J
Cogneras, E
Cojocariu, L
Collins, P
Colombo, T
Comerma-Montells, A
Contu, A
Coombs, G
Coquereau, S
Corti, G
Sobral, CMC
Couturier, B
Cowan, GA
Craik, DC
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
Francisco, ODA
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
Demmer, M
Dendek, A
Derkach, D
Deschamps, O
Desse, F
Dettori, F
Dey, B
Di Canto, A
Di Nezza, P
Didenko, S
Dijkstra, H
Dordei, F
Dorigo, M
Dos Reis, AC
Dosil Suarez, A
Douglas, L
Dovbnya, A
Dreimanis, K
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
Eitschberger, U
Ekelhof, R
Eklund, L
Ely, S
Ene, A
Escher, S
Esen, S
Evans, T
Falabella, A
Farber, C
Farley, N
Farry, S
Fazzini, D
Feo, M
Declara, PF
Fernandez Prieto, A
Ferrari, F
Lopes, LF
Ferreira Rodrigues, F
Sole, SF
Ferro-Luzzi, M
Filippov, S
Fini, RA
Fiorini, M
Firlej, M
Fitzpatrick, C
Fiutowski, T
Fleuret, F
Fontana, M
Fontanelli, F
Forty, R
Lima, VF
Frank, M
Frei, C
Fu, J
Funk, W
Gabriel, E
Gallas Torreira, A
Galli, D
Gallorini, S
Gambetta, S
Gan, Y
Gandelman, M
Gandini, P
Gao, Y
Garcia Martin, LM
Pardinas, JG
Garcia Plana, B
Tico, JG
Garrido, L
Gascon, D
Gaspar, C
Gazzoni, G
Gerick, D
Gersabeck, E
Gersabeck, M
Gershon, T
Gerstel, D
Ghez, P
Gibson, V
Girard, OG
Gironella Gironell, P
Giubega, L
Gizdov, K
Gligorov, VV
Gobel, C
Golubkov, D
Golutvin, A
Gomes, A
Gorelov, I
Gotti, C
Govorkova, E
Grabowski, JP
Graciani Diaz, R
Cardoso, LAG
Grauges, E
Graverini, E
Graziani, G
Grecu, A
Greim, R
Griffith, P
Grillo, L
Gruber, L
Cazon, BRG
Gu, C
Gushchin, E
Guth, A
Guz, Y
Gys, T
Hadavizadeh, T
Hadjivasiliou, C
Haefeli, G
Haen, C
Haines, SC
Hamilton, B
Han, Q
Han, X
Hancock, TH
Hansmann-Menzemer, S
Harnew, N
Harrison, T
Hasse, C
Hatch, M
He, J
Hecker, M
Heinicke, K
Heister, A
Hennessy, K
Henry, L
Hess, M
Heuel, J
Hicheur, A
Charman, RH
Hill, D
Hilton, M
Hopchev, PH
Hu, J
Hu, W
Huang, W
Huard, ZC
Hulsbergen, W
Humair, T
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
Jiang, F
John, M
Johnson, D
Jones, CR
Joram, C
Jost, B
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
Koliiev, S
Kolpin, M
Kopecna, R
Koppenburg, P
Kostiuk, I
Kot, O
Kotriakhova, S
Kozeiha, M
Kravchuk, L
Kreps, M
Kress, F
Kretzschmar, S
Krokovny, P
Krupa, W
Krzemien, W
Kucewicz, W
Kucharczyk, M
Kudryavtsev, V
Kunde, GJ
Kuonen, AK
Kvaratskheliya, T
Lacarrere, D
Lafferty, G
Lai, A
Lancierini, D
Lanfranchi, G
Langenbruch, C
Latham, T
Lazzeroni, C
Le Gac, R
Lefevre, R
Leflat, A
Lemaitre, F
Leroy, O
Lesiak, T
Leverington, B
Li, H
Li, P-R
Li, X
Li, Y
Li, Z
Liang, X
Likhomanenko, T
Lindner, R
Lionetto, F
Lisovskyi, V
Liu, G
Liu, X
Loh, D
Loi, A
Longstaff, I
Lopes, JH
Loustau, G
Lovell, GH
Lucchesi, D
Lucio Martinez, M
Luo, Y
Lupato, A
Luppi, E
Lupton, O
Lusiani, A
Lyu, X
Machefert, F
Maciuc, F
Macko, V
Mackowiak, P
Maddrell-Mander, S
Maev, O
Maguire, K
Maisuzenko, D
Majewski, MW
Malde, S
Malecki, B
Malinin, A
Maltsev, T
Malygina, H
Manca, G
Mancinelli, G
Marangotto, D
Maratas, J
Marchand, JF
Marconi, U
Benito, CM
Marinangeli, M
Marino, P
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Yuan, X
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Zavertyaev, M
Zeng, M
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Collaboration, L
Item Type: Journal Article
Abstract: The radiative decay Λ0b→Λγ is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of 1.7  fb−1 collected by the LHCb experiment at a center-of-mass energy of 13 TeV. Its branching fraction is measured exploiting the B0→K*0γ decay as a normalization mode and is found to be B(Λ0b→Λγ)=(7.1±1.5±0.6±0.7)×10−6, where the quoted uncertainties are statistical, systematic, and systematic from external inputs, respectively. This is the first observation of a radiative decay of a beauty baryon.
Issue Date: 15-Jul-2019
Date of Acceptance: 31-May-2019
URI: http://hdl.handle.net/10044/1/79943
DOI: 10.1103/PhysRevLett.123.031801
ISSN: 0031-9007
Publisher: American Physical Society
Journal / Book Title: Physical Review Letters
Volume: 123
Issue: 3
Copyright Statement: © 2019 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Keywords: Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
POLARIZATION
TOOL
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
POLARIZATION
TOOL
General Physics
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Publication Status: Published
Open Access location: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.031801
Article Number: ARTN 031801
Appears in Collections:Physics
High Energy Physics