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Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albicocco, R, Albrecht, J, Alessio, F, Alexander, M, Albero, A Alfonso et al (show 781 more authors) , Ali, S, Alkhazov, G, Cartelle, R Alvarez, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d'Argent, R, Romeu, J Arnau, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, 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, van Beuzekom, M, Bershyiko, Ia, Bifani, S, Billoir, R, Birnkraut, A, Bizzeti, A, Bjorn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Garcia, O Boente, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV 
ORCID: 0000-0002-3505-6915, Bowen, E, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, Brundu, D, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calladine, R, Calvi, M, Gomez, M Calvo, Camboni, A, Campana, R, Perez, DH Campora, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, R, Carson, L, Akiba, K Carvalho, Casse, G ORCID: 0000-0002-8516-237X, Cassina, L, Cattaneo, M, Cavallero, G, Cenci, R, Chamont, D, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chen, S, Chitic, S-G, Chobanova, V, Chrzaszcz, M, Chubykin, A, Ciambrone, R, Vidal, X Cid, Ciezarek, G, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cogoni, V, Cojocariu, L, Collins, R, Colombo, T, Comerma-Montells, A, Contu, A, Coombs, G, Coquereau, S, Corti, G, Corvo, M, Sobral, CM Costa, Couturier, B, Cowan, GA, Craik, DC, Crocombe, A, Torres, M Cruz, Currie, R, D'Ambrosio, C, Marinho, F Da Cunha, Da Silva, CL, Dall'Occo, E, Dalseno, J, Danilina, A, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, R, Dean, CT, Decamp, D, Del Buono, L, Delaney, B, Dembinski, H-R, Demmer, M, Dendek, A, Derkach, D, Deschamps, O, Dettori, F, Dey, B, Di Canto, A, Di Nezza, R, Didenko, S, Dijkstra, H, Dordei, F, Dorigo, M, Suarez, A Dosil, Douglas, L, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Durante, R, 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, HM, Evans, T, Falabella, A, Farley, N, Farry, S ORCID: 0000-0001-5119-9740, Fazzini, D, Federici, L, Fernandez, G, Declara, R Fernandez, Prieto, A Fernandez, Ferrari, F, Lopes, L Ferreira, Rodrigues, F Ferreira, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorinig, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Lima, V Franco ORCID: 0000-0002-3761-209X, Frank, M, Frei, C, Fu, J, Funk, W, Farber, C, Gabriel, E, Torreira, A Gallas, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, R, Gao, Y, Martin, LM Garcia, Plana, B Garcia, Pardinas, J Garcia, Tico, J Garra, Garrido, L, Gascon, D, Gaspar, C, Gavardi, L, Gazzoni, G, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, Ph, Giani, S, Gibson, V, Girard, OG, Giubega, L, Gizdov, K, Gligorov, VV, Golubkov, D, Golutvin, A, Gomes, A, Gorelov, IV, Gotti, C, Govorkova, E, Grabowski, JP, Diaz, R Graciani, Cardoso, LA Granado, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, R, Grillo, L, Gruber, L, Cazon, BR Gruberg, Grunberg, O, Gushchin, E, Guz, Yu, Gys, T, Gobel, C, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, SC, Hamilton, B, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harnew, ST, Hasse, C, Hatch, M, He, J, Hecker, M, Heinicke, K, Heister, A, Hennessy, K ORCID: 0000-0002-1529-8087, Henry, L, van Herwijnen, E, Hess, M, Hicheur, A, Hill, D, Hopchev, PH, Hu, W, Huang, W, Huard, ZC, Hulsbergen, W, Humair, T, Hushchyn, M, Hutchcroft, D ORCID: 0000-0002-4174-6509, Ibis, R, Idzik, M, Ilten, R, Ivshin, K, Jacobsson, R, Jalocha, J, Jans, E, 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, Khairullin, E, Khanji, B, Khurewathanakul, C, Kim, KE, Kirn, T, Klaver, S, Klimaszewski, K, Klimkovich, T, Koliiev, S, Kolpin, M, Kopecna, R, Koppenburg, R, Kotriakhova, S, Kozeiha, M, Kravchuk, L, Kreps, M, Kress, F, Krokovny, R, Krupa, W, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, Leflat, A, Lefrancois, J, Lefevre, R, Lemaitre, F, Leroy, O, Lesiak, T, Leverington, B, Li, P-R, Li, T, Li, Z, Liang, X, Likhomanenko, T, Lindner, R, Lionetto, F, Lisovskyi, V, Liu, X, Loh, D, Loi, A, Longstaff, I, Lopes, JH, Lucchesi, D, Martinez, M Lucio, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Machefert, F, Maciuc, F, Macko, V, Mackowiak, R, Maddrell-Mander, S, Maev, O, Maguire, K, Maisuzenko, D, Majewski, MW, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Manca, G, Mancinelli, G, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Benito, C Marin, Marinangeli, M, Marino, R, Marks, J, Martellotti, G, Martin, M, Martinelli, M, Santos, D Martinez, Vidal, F Martinez, Massafferri, A, Matev, R, Mathad, A, Mathe, Z, Matteuzzi, C, Mauri, A, Maurice, E, Maurin, B, Mazurov, A, McCann, M, McNab, A, McNulty, R, Mead, JV ORCID: 0000-0003-0875-2533, Meadows, B, Meaux, C, Meier, F, Meinert, N, Melnychuk, D, Merk, M, Merli, A, Michielin, E, Milanes, DA, Millard, E, Minard, M-N, Minzoni, L, Mitzel, DS, Mogini, A, Rodriguez, J Molina, Mombacher, T, Monroy, 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(2018)
Observation of the decay Lambda(0)(b) -> Lambda(+)(c)p(p)over-bar pi(-).
PHYSICS LETTERS B, 784.
pp. 101-111.
Abstract
The decay $\Lambda_b^0 \to \Lambda_c^+ p \overline{p} \pi^-$ is observed
using $pp$ collision data collected with the LHCb detector at centre-of-mass
energies of $\sqrt{s}=$ 7 and 8 TeV, corresponding to an integrated luminosity
of 3 $fb^{-1}$. The ratio of branching fractions between $\Lambda_b^0 \to
\Lambda_c^+ p \overline{p} \pi^-$ and $\Lambda_b^0 \to \Lambda_c^+ \pi^-$
decays is measured to be \begin{equation*}
\frac{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ p
\overline{p}\pi^-)}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ \pi^-)} = 0.0540
\pm 0.0023 \pm 0.0032. \end{equation*} Two resonant structures are observed in
the $ \Lambda_c^+ \pi^-$ mass spectrum of the ${\Lambda_b^0 \to \Lambda_c^+
p\overline{p} \pi^-}$ decays, corresponding to the $\Sigma_c(2455)^0$ and
$\Sigma_c^{*}(2520)^0$ states. The ratios of branching fractions with respect
to the decay $\Lambda_b^0 \to \Lambda_c^+ p \overline{p} \pi^-$ are
\begin{align*}
\frac{\mathcal{B}(\Lambda_b^0 \to \Sigma_c^0
p\overline{p})\times\mathcal{B}(\Sigma_c^0\to \Lambda_c^+
\pi^-)}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ p \overline{p}\pi^-)} =
0.089\pm0.015\pm0.006,
\frac{\mathcal{B}(\Lambda_b^0 \to \Sigma_c^{*0}
p\overline{p})\times\mathcal{B}(\Sigma_c^{*0}\to \Lambda_c^+
\pi^-)}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ p \overline{p}\pi^-)} =
0.119\pm0.020\pm0.014. \end{align*} In all of the above results, the first
uncertainty is statistical and the second is systematic. The phase space is
also examined for the presence of dibaryon resonances. No evidence for such
resonances is found.
| Item Type: |
Article
|
| Additional Information: |
All figures and tables, along with any supplementary material and
additional information, are available at
https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2018-005.html |
| Uncontrolled Keywords: |
hep-ex, hep-ex |
| Depositing User: |
Symplectic Admin
|
| Date Deposited: |
03 Dec 2018 10:13 |
| Last Modified: |
19 Jan 2023 01:11 |
| DOI: |
10.1016/j.physletb.2018.07.033 |
| Related URLs: |
|
| URI: |
https://livrepository.liverpool.ac.uk/id/eprint/3029303 |
![[img]](https://livrepository.liverpool.ac.uk/style/images/fileicons/text.png)
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