Observation of the Decay Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu)over-bar(tau) [Observation of the Decay Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ̄]_{τ}]

التفاصيل البيبلوغرافية
العنوان:	Observation of the Decay Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu)over-bar(tau) [Observation of the Decay Λ_{b}^{0}→Λ_{c}^{+}τ^{-}ν[over ̄]_{τ}]
المؤلفون:	Aaij, R, Abdelmotteleb, A S W, Beteta, C Abellán, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C A, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Albero, A Alfonso, Aliouche, Z, Alkhazov, G, Cartelle, P Alvarez, Amato, S, Amey, J L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J J, Rodriguez, P Baladron, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J M, Bashir, S, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M S, Biesuz, N V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F C R, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, M P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J A, Garcia, O Boente, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, J T, Bouchiba, S A, Bowcock, T J V, Boyer, A, Bozzi, C, Bradley, M J, Braun, S, Rodriguez, A Brea, Brodzicka, J, Gonzalo, A Brossa, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A T, Burr, C, Bursche, A, Butkevich, A, Butter, J S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Gomez, M Calvo, Magalhaes, P Camargo, Campana, P, Quezada, A F Campoverde, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Akiba, K Carvalho, Vidal, A Casais, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A J, Chapman, M G, Charles, M, Charpentier, Ph, Barajas, C A Chavez, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M F, Vidal, X Cid, Ciezarek, G, Clarke, P E L, Clemencic, M, Cliff, H V, Closier, J, Cobbledick, J L, Coco, V, Coelho, J A B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Sobral, C M Costa, Couturier, B, Craik, D C, Crkovská, J, Torres, M Cruz, Currie, R, Da Silva, C L, Dadabaev, S, Dai, L, Dall'Occo, E, Dalseno, J, D'Ambrosio, C, Danilina, A, d'Argent, P, Dashkina, A, Davies, J E, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, Da Graca, U De Freitas Carneiro, De Lucia, E, De Miranda, J M, De Paula, L, De Serio, M, De Simone, D, De Simone, P, De Vellis, F, de Vries, J A, Dean, C T, Debernardis, F, Decamp, D, Dedu, V, Del Buono, L, Delaney, B, Dembinski, H-P, Denysenko, V, Derkach, D, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Didenko, S, Maronas, L Dieste, Dijkstra, H, Dobishuk, V, Dong, C, Donohoe, A M, Dordei, F, Dos Reis, A C, Douglas, L, Dovbnya, A, Downes, A G, Dudek, M W, Dufour, L, Duk, V, Durante, P, Durham, J M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Féo, M, Prieto, A Fernandez, Fernez, A D, Ferrari, F, Lopes, L Ferreira, Rodrigues, F Ferreira, Sole, S Ferreres, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R A, Fiorini, M, Firlej, M, Fischer, K M, Fitzgerald, D S, Fitzpatrick, C, Fiutowski, T, Fkiaras, A, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Lima, V Franco, Sevilla, M Franco, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Torreira, A Gallas, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Martin, L M Garcia, Moreno, P Garcia, García Pardiñas, J, Plana, B Garcia, Rosales, F A Garcia, Garrido, L, Gaspar, C, Geertsema, R E, Gerick, D, Gerken, L L, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Giambastiani, L, Gibson, V, Giemza, H K, Gilman, A L, Giovannetti, M, Gioventù, A, Gironell, P Gironella, Giugliano, C, Gizdov, K, Gkougkousis, E L, Gligorov, V V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Fernandez, S Gomez, Abrantes, F Goncalves, Goncerz, M, Gong, G, Gorbounov, P, Gorelov, I V, Gotti, C, Grabowski, J P, Grammatico, T, Cardoso, L A Granado, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Greeven, L M, Grieser, N A, Grillo, L, Gromov, S, Cazon, B R Gruberg, Gu, C, Guarise, M, Guittiere, M, Günther, P A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S C, Halewood-Leagas, T, Hamilton, P M, Hammerich, J P, Han, Q, Han, X, Hansen, E B, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Hecker, M, Heijhoff, K, Heinicke, K, Henderson, R D L, Hennequin, A M, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, S E, Hou, R, Hou, Y, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, R J, Hushchyn, M, Hutchcroft, D, Hynds, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jakobsen, S, Jans, E, Jashal, B K, Jawahery, A, Jevtic, V, Jiang, X, John, M, Johnson, D, Jones, C R, Jones, T P, Jost, B, Jurik, N, Kadavath, S H Kalavan, Kandybei, S, Kang, Y, Karacson, M, Karpenkov, D, Karpov, M, Kautz, J W, Keizer, F, Keller, D M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, V S, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, M R, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kozachuk, A, Kravchenko, P, Kravchuk, L, Krawczyk, R D, Kreps, M, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kubat, J, Kucharczyk, M, Kudryavtsev, V, Kuindersma, H S, Kunde, G J, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, J J, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Le Gac, R, Lee, S H, Lefèvre, R, Leflat, A, Legotin, S, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, P, Li, S, Li, Y, Li, Z, Liang, X, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Salvia, A Lobo, Loi, A, Lollini, R, Castro, J Lomba, Longstaff, I, Lopes, J H, Soliño, S López, Lovell, G H, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Martinez, M Lucio, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madejczyk, O, Mohan, L R Madhan, Maev, O, Maevskiy, A, Maisuzenko, D, 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المساهمون:	R. Aaij, A.S.W. Abdelmotteleb, C.A. Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, H. Afsharnia, C. Agapopoulou, C.A. Aidala, S. Aiola, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A.A. Albero, Z. Aliouche, G. Alkhazov, P.A. Cartelle, S. Amato, J.L. Amey, Y. Amhi, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, F. Archilli, A. Artamonov, M. Artuso, K. Arzymatov, E. Aslanide, M. Atzeni, B. Audurier, S. Bachmann, M. Bachmayer, J.J. Back, P.B. Rodriguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R.J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, J.M. Basel, S. Bashir, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I. Bediaga, A. Beiter, V. Belavin, S. Belin, V. Bellee, K. Belou, I. Belov, I. Belyaev, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, D. Berninghoff, H.C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, I. Bezshyiko, S. Bhasin, J. Bhom, L. Bian, M.S. Bieker, N.V. Biesuz, S. Bifani, P. Billoir, A. Biolchini, M. Birch, F.C.R. Bishop, A. Bitadze, A. Bizzeti, M. Bjørn, M.P. Blago, T. Blake, F. Blanc, S. Blusk, D. Bobulska, J.A. Boelhauve, O.B. Garcia, T. Boettcher, A. Boldyrev, A. Bondar, N. Bondar
بيانات النشر:	American Institute of Physics
سنة النشر:	2022
المجموعة:	The University of Milan: Archivio Istituzionale della Ricerca (AIR)
مصطلحات موضوعية:	Settore FIS/01 - Fisica Sperimentale
الوصف:	The first observation of the semileptonic b-baryon decay Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu) over bar (tau) with a significance of 6.1 sigma, is reported using a data sample corresponding to 3 fb(-1) of integrated luminosity, collected by the LHCb experiment at center-of-mass energies of 7 and 8 TeV at the LHC. The tau(-) lepton is reconstructed in the hadronic decay to three charged pions. The ratio K = B(Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu) over bar (tau))/B(Lambda(0)(b) -> Lambda(+)(c)pi(-)pi(+)pi(-)) is measured to be 2.46 +/- 0.27 +/- 0.40, where the first uncertainty is statistical and the second systematic. The branching fraction B(Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu) over bar (tau)) (1.50 +/- 0.16 +/- 0.25 +/- 0.23)% is obtained, where the third uncertainty is from the external branching fraction of the normalization channel Lambda(0)(b) -> Lambda(+)(c)pi(-)pi(+)pi(-). The ratio of semileptonic branching fractions R(Lambda(+)(c)) B(Lambda(0)(b) -> Lambda(+)(c) tau(-)(nu) over bar (tau))/B(Lambda(0)(b) -> Lambda(+)(c)mu(-)(nu) over bar (tau)) is derived to be 0.242 +/- 0.026 +/- 0.040 +/- 0.059, where the external branching fraction uncertainty from the channel Lambda(0)(b) -> Lambda(+)(c)mu(-)(nu) over bar (tau) contributes to the last term. This result is in agreement with the standard model prediction.
نوع الوثيقة:	article in journal/newspaper
اللغة:	English
العلاقة:	info:eu-repo/semantics/altIdentifier/pmid/35622037; info:eu-repo/semantics/altIdentifier/wos/WOS:000807542100003; volume:128; issue:19; firstpage:191803-1; lastpage:191803-11; numberofpages:11; journal:PHYSICAL REVIEW LETTERS; http://hdl.handle.net/2434/940650Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85130325891
DOI:	10.1103/PhysRevLett.128.191803
الإتاحة:	https://doi.org/10.1103/PhysRevLett.128.191803Test http://hdl.handle.net/2434/940650Test
حقوق:	info:eu-repo/semantics/openAccess
رقم الانضمام:	edsbas.BEC7DA83
قاعدة البيانات:	BASE

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الوصف
DOI:	10.1103/PhysRevLett.128.191803