Observation of $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{(*)0}{{K} ^-} $$ and $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^{*-}_{s}} $$ decays

Author:

,Aaij R.ORCID,Abdelmotteleb A. S. W.ORCID,Beteta C. Abellan,Abudinén F.ORCID,Ackernley T.ORCID,Adeva B.ORCID,Adinolfi M.ORCID,Adlarson P.ORCID,Agapopoulou C.ORCID,Aidala C. A.ORCID,Ajaltouni Z.,Akar S.ORCID,Akiba K.ORCID,Albicocco P.ORCID,Albrecht J.ORCID,Alessio F.ORCID,Alexander M.ORCID,Alfonso Albero A.ORCID,Aliouche Z.ORCID,Alvarez Cartelle P.ORCID,Amalric R.ORCID,Amato S.ORCID,Amey J. L.ORCID,Amhis Y.ORCID,An L.ORCID,Anderlini L.ORCID,Andersson M.ORCID,Andreianov A.ORCID,Andreola P.ORCID,Andreotti M.ORCID,Andreou D.ORCID,Anelli A.ORCID,Ao D.ORCID,Archilli F.ORCID,Argenton M.ORCID,Arguedas Cuendis S.ORCID,Artamonov A.ORCID,Artuso M.ORCID,Aslanides E.ORCID,Atzeni M.ORCID,Audurier B.ORCID,Bacher D.ORCID,Bachiller Perea I.ORCID,Bachmann S.ORCID,Bachmayer M.ORCID,Back J. J.ORCID,Baladron Rodriguez P.ORCID,Balagura V.ORCID,Baldini W.ORCID,Baptista de Souza Leite J.ORCID,Barbetti M.ORCID,Barbosa I. R.ORCID,Barlow R. J.ORCID,Barsuk S.ORCID,Barter W.ORCID,Bartolini M.ORCID,Bartz J.ORCID,Baryshnikov F.ORCID,Basels J. M.ORCID,Bassi G.ORCID,Batsukh B.ORCID,Battig A.ORCID,Bay A.ORCID,Beck A.ORCID,Becker M.ORCID,Bedeschi F.ORCID,Bediaga I. B.ORCID,Beiter A.,Belin S.ORCID,Bellee V.ORCID,Belous K.ORCID,Belov I.ORCID,Belyaev I.ORCID,Benane G.ORCID,Bencivenni G.ORCID,Ben-Haim E.ORCID,Berezhnoy A.ORCID,Bernet R.ORCID,Bernet Andres S.ORCID,Bernstein H. C.,Bertella C.ORCID,Bertolin A.ORCID,Betancourt C.ORCID,Betti F.ORCID,Bex J.ORCID,Bezshyiko Ia.ORCID,Bhom J.ORCID,Bieker M. S.ORCID,Biesuz N. V.ORCID,Billoir P.ORCID,Biolchini A.ORCID,Birch M.ORCID,Bishop F. C. R.ORCID,Bitadze A.ORCID,Bizzeti A.ORCID,Blago M. P.ORCID,Blake T.ORCID,Blanc F.ORCID,Blank J. E.ORCID,Blusk S.ORCID,Bobulska D.ORCID,Bocharnikov V.ORCID,Boelhauve J. A.ORCID,Boente Garcia O.ORCID,Boettcher T.ORCID,Bohare A.ORCID,Boldyrev A.ORCID,Bolognani C. S.ORCID,Bolzonella R.ORCID,Bondar N.ORCID,Borgato F.ORCID,Borghi S.ORCID,Borsato M.ORCID,Borsuk J. T.ORCID,Bouchiba S. A.ORCID,Bowcock T. J. V.ORCID,Boyer A.ORCID,Bozzi C.ORCID,Bradley M. J.,Braun S.ORCID,Brea Rodriguez A.ORCID,Breer N.ORCID,Brodzicka J.ORCID,Brossa Gonzalo A.ORCID,Brown J.ORCID,Brundu D.ORCID,Buonaura A.ORCID,Buonincontri L.ORCID,Burke A. T.ORCID,Burr C.ORCID,Bursche A.,Butkevich A.ORCID,Butter J. S.ORCID,Buytaert J.ORCID,Byczynski W.ORCID,Cadeddu S.ORCID,Cai H.,Calabrese R.ORCID,Calefice L.ORCID,Cali S.ORCID,Calvi M.ORCID,Calvo Gomez M.ORCID,Cambon Bouzas J.ORCID,Campana P.ORCID,Campora Perez D. H.ORCID,Campoverde Quezada A. F.ORCID,Capelli S.ORCID,Capriotti L.ORCID,Caravaca-Mora R.ORCID,Carbone A.ORCID,Carcedo Salgado L.ORCID,Cardinale R.ORCID,Cardini A.ORCID,Carniti P.ORCID,Carus L.,Casais Vidal A.ORCID,Caspary R.ORCID,Casse G.ORCID,Castro Godinez J.ORCID,Cattaneo M.ORCID,Cavallero G.ORCID,Cavallini V.ORCID,Celani S.ORCID,Cerasoli J.ORCID,Cervenkov D.ORCID,Cesare S.ORCID,Chadwick A. J.ORCID,Chahrour I.ORCID,Charles M.ORCID,Charpentier Ph.ORCID,Chavez Barajas C. A.ORCID,Chefdeville M.ORCID,Chen C.ORCID,Chen S.ORCID,Chen Z.ORCID,Chernov A.ORCID,Chernyshenko S.ORCID,Chobanova V.ORCID,Cholak S.ORCID,Chrzaszcz M.ORCID,Chubykin A.ORCID,Chulikov V.ORCID,Ciambrone P.ORCID,Cicala M. F.ORCID,Vidal X. CidORCID,Ciezarek G.ORCID,Cifra P.ORCID,Clarke P. E. L.ORCID,Clemencic M.ORCID,Cliff H. V.ORCID,Closier J.ORCID,Cobbledick J. L.ORCID,Toapaxi C. CochaORCID,Coco V.ORCID,Cogan J.ORCID,Cogneras E.ORCID,Cojocariu L.ORCID,Collins P.ORCID,Colombo T.ORCID,Comerma-Montells A.ORCID,Congedo L.ORCID,Contu A.ORCID,Cooke N.ORCID,Corredoira I.ORCID,Correia A.ORCID,Corti G.ORCID,Cottee Meldrum J. J.,Couturier B.ORCID,Craik D. C.ORCID,Cruz Torres M.ORCID,Currie R.ORCID,Da Silva C. L.ORCID,Dadabaev S.ORCID,Dai L.ORCID,Dai X.ORCID,Dall’Occo E.ORCID,Dalseno J.ORCID,D’Ambrosio C.ORCID,Daniel J.ORCID,Danilina A.ORCID,d’Argent P.ORCID,Davidson A.ORCID,Davies J. E.ORCID,Davis A.ORCID,De Aguiar Francisco O.ORCID,De Angelis C.ORCID,de Boer J.ORCID,De Bruyn K.ORCID,De Capua S.ORCID,De Cian M.ORCID,De Freitas Carneiro Da Graca U.ORCID,De Lucia E.ORCID,De Miranda J. M.ORCID,De Paula L.ORCID,De Serio M.ORCID,De Simone D.ORCID,De Simone P.ORCID,De Vellis F.ORCID,de Vries J. A.ORCID,Debernardis F.ORCID,Decamp D.ORCID,Dedu V.ORCID,Del Buono L.ORCID,Delaney B.ORCID,Dembinski H.-P.ORCID,Deng J.ORCID,Denysenko V.ORCID,Deschamps O.ORCID,Dettori F.ORCID,Dey B.ORCID,Di Nezza P.ORCID,Diachkov I.ORCID,Didenko S.ORCID,Ding S.ORCID,Dobishuk V.ORCID,Docheva A. D.ORCID,Dolmatov A.,Dong C.ORCID,Donohoe A. M.ORCID,Dordei F.ORCID,dos Reis A. C.ORCID,Douglas L.,Downes A. G.ORCID,Duan W.ORCID,Duda P.ORCID,Dudek M. W.ORCID,Dufour L.ORCID,Duk V.ORCID,Durante P.ORCID,Duras M. M.ORCID,Durham J. M.ORCID,Dziurda A.ORCID,Dzyuba A.ORCID,Easo S.ORCID,Eckstein E.,Egede U.ORCID,Egorychev A.ORCID,Egorychev V.ORCID,Orro C. Eirea,Eisenhardt S.ORCID,Ejopu E.ORCID,Ek-In S.ORCID,Eklund L.ORCID,Elashri M.ORCID,Ellbracht J.ORCID,Ely S.ORCID,Ene A.ORCID,Epple E.ORCID,Escher S.ORCID,Eschle J.ORCID,Esen S.ORCID,Evans T.ORCID,Fabiano F.ORCID,Falcao L. N.ORCID,Fan Y.ORCID,Fang B.ORCID,Fantini L.ORCID,Faria M.ORCID,Farmer K.ORCID,Fazzini D.ORCID,Felkowski L.ORCID,Feng M.ORCID,Feo M.ORCID,Fernandez Gomez M.ORCID,Fernez A. D.ORCID,Ferrari F.ORCID,Ferreira Rodrigues F.ORCID,Ferreres Sole S.ORCID,Ferrillo M.ORCID,Ferro-Luzzi M.ORCID,Filippov S.ORCID,Fini R. A.ORCID,Fiorini M.ORCID,Firlej M.ORCID,Fischer K. M.ORCID,Fitzgerald D. S.ORCID,Fitzpatrick C.ORCID,Fiutowski T.ORCID,Fleuret F.ORCID,Fontana M.ORCID,Fontanelli F.ORCID,Foreman L. F.ORCID,Forty R.ORCID,Foulds-Holt D.ORCID,Franco Sevilla M.ORCID,Frank M.ORCID,Franzoso E.ORCID,Frau G.ORCID,Frei C.ORCID,Friday D. A.ORCID,Frontini L.ORCID,Fu J.ORCID,Fuehring Q.ORCID,Fujii Y.ORCID,Fulghesu T.ORCID,Gabriel E.ORCID,Galati G.ORCID,Galati M. D.ORCID,Gallas Torreira A.ORCID,Galli D.ORCID,Gambetta S.ORCID,Gandelman M.ORCID,Gandini P.ORCID,Gao H.ORCID,Gao R.ORCID,Gao Y.ORCID,Gao Y.ORCID,Gao Y.,Garau M.ORCID,Garcia Martin L. M.ORCID,Garcia Moreno P.ORCID,García Pardiñas J.ORCID,Plana B. Garcia,Garg K. G.ORCID,Garrido L.ORCID,Gaspar C.ORCID,Geertsema R. E.ORCID,Gerken L. L.ORCID,Gersabeck E.ORCID,Gersabeck M.ORCID,Gershon T.ORCID,Ghorbanimoghaddam Z.,Giambastiani L.ORCID,Giasemis F. I.ORCID,Gibson V.ORCID,Giemza H. K.ORCID,Gilman A. L.ORCID,Giovannetti M.ORCID,Gioventù A.ORCID,Gironella Gironell P.ORCID,Giugliano C.ORCID,Giza M. A.ORCID,Gkougkousis E. L.ORCID,Glaser F. C.ORCID,Gligorov V. V.ORCID,Göbel C.ORCID,Golobardes E.ORCID,Golubkov D.ORCID,Golutvin A.ORCID,Gomes A.ORCID,Gomez Fernandez S.ORCID,Goncalves Abrantes F.ORCID,Goncerz M.ORCID,Gong G.ORCID,Gooding J. A.ORCID,Gorelov I. V.ORCID,Gotti C.ORCID,Grabowski J. P.ORCID,Granado Cardoso L. A.ORCID,Graugés E.ORCID,Graverini E.ORCID,Grazette L.ORCID,Graziani G.ORCID,Grecu A. T.ORCID,Greeven L. M.ORCID,Grieser N. A.ORCID,Grillo L.ORCID,Gromov S.ORCID,Gu C.ORCID,Guarise M.ORCID,Guittiere M.ORCID,Guliaeva V.ORCID,Günther P. A.ORCID,Guseinov A.-K.ORCID,Gushchin E.ORCID,Guz Y.ORCID,Gys T.ORCID,Hadavizadeh T.ORCID,Hadjivasiliou C.ORCID,Haefeli G.ORCID,Haen C.ORCID,Haimberger J.ORCID,Hajheidari M.,Halewood-leagas T.ORCID,Halvorsen M. M.ORCID,Hamilton P. M.ORCID,Hammerich J.ORCID,Han Q.ORCID,Han X.ORCID,Hansmann-Menzemer S.ORCID,Hao L.ORCID,Harnew N.ORCID,Harrison T.ORCID,Hartmann M.ORCID,Hasse C.ORCID,He J.ORCID,Heijhoff K.ORCID,Hemmer F.ORCID,Henderson C.ORCID,Henderson R. D. L.ORCID,Hennequin A. M.ORCID,Hennessy K.ORCID,Henry L.ORCID,Herd J.ORCID,Herrero Gascon P.ORCID,Heuel J.ORCID,Hicheur A.ORCID,Hill D.ORCID,Hollitt S. E.ORCID,Horswill J.ORCID,Hou R.ORCID,Hou Y.ORCID,Howarth N.,Hu J.,Hu J.ORCID,Hu W.ORCID,Hu X.ORCID,Huang W.ORCID,Hulsbergen W.ORCID,Hunter R. J.ORCID,Hushchyn M.ORCID,Hutchcroft D.ORCID,Idzik M.ORCID,Ilin D.ORCID,Ilten P.ORCID,Inglessi A.ORCID,Iniukhin A.ORCID,Ishteev A.ORCID,Ivshin K.ORCID,Jacobsson R.ORCID,Jage H.ORCID,Jaimes Elles S. J.ORCID,Jakobsen S.ORCID,Jans E.ORCID,Jashal B. K.ORCID,Jawahery A.ORCID,Jevtic V.ORCID,Jiang E.ORCID,Jiang X.ORCID,Jiang Y.ORCID,Jiang Y. J.ORCID,John M.ORCID,Johnson D.ORCID,Jones C. R.ORCID,Jones T. P.ORCID,Joshi S.ORCID,Jost B.ORCID,Jurik N.ORCID,Juszczak I.ORCID,Kaminaris D.ORCID,Kandybei S.ORCID,Kang Y.ORCID,Karacson M.ORCID,Karpenkov D.ORCID,Karpov M.ORCID,Kauniskangas A. M.ORCID,Kautz J. W.ORCID,Keizer F.ORCID,Keller D. M.ORCID,Kenzie M.ORCID,Ketel T.ORCID,Khanji B.ORCID,Kharisova A.ORCID,Kholodenko S.ORCID,Khreich G.ORCID,Kirn T.ORCID,Kirsebom V. S.ORCID,Kitouni O.ORCID,Klaver S.ORCID,Kleijne N.ORCID,Klimaszewski K.ORCID,Kmiec M. R.ORCID,Koliiev S.ORCID,Kolk L.ORCID,Konoplyannikov A.ORCID,Kopciewicz P.ORCID,Koppenburg P.ORCID,Korolev M.ORCID,Kostiuk I.ORCID,Kot O.,Kotriakhova S.ORCID,Kozachuk A.ORCID,Kravchenko P.ORCID,Kravchuk L.ORCID,Kreps M.ORCID,Kretzschmar S.ORCID,Krokovny P.ORCID,Krupa W.ORCID,Krzemien W.ORCID,Kubat J.,Kubis S.ORCID,Kucewicz W.ORCID,Kucharczyk M.ORCID,Kudryavtsev V.ORCID,Kulikova E.ORCID,Kupsc A.ORCID,Kutsenko B. K.ORCID,Lacarrere D.ORCID,Lai A.ORCID,Lampis A.ORCID,Lancierini D.ORCID,Landesa Gomez C.ORCID,Lane J. J.ORCID,Lane R.ORCID,Langenbruch C.ORCID,Langer J.ORCID,Lantwin O.ORCID,Latham T.ORCID,Lazzari F.ORCID,Lazzeroni C.ORCID,Gac R. LeORCID,Lee S. H.ORCID,Lefèvre R.ORCID,Leflat A.ORCID,Legotin S.ORCID,Lehuraux M.ORCID,Leroy O.ORCID,Lesiak T.ORCID,Leverington B.ORCID,Li A.ORCID,Li H.ORCID,Li K.ORCID,Li L.ORCID,Li P.ORCID,Li P.-R.ORCID,Li S.ORCID,Li T.ORCID,Li T.ORCID,Li Y.,Li Y.ORCID,Li Z.ORCID,Lian Z.ORCID,Liang X.ORCID,Lin C.ORCID,Lin T.ORCID,Lindner R.ORCID,Lisovskyi V.ORCID,Litvinov R.ORCID,Liu G.ORCID,Liu H.ORCID,Liu K.ORCID,Liu Q.ORCID,Liu S.ORCID,Liu Y.ORCID,Liu Y.,Liu Y. L.ORCID,Lobo Salvia A.ORCID,Loi A.ORCID,Lomba Castro J.ORCID,Long T.ORCID,Lopes J. H.ORCID,Lopez Huertas A.ORCID,L.ópez Soliño S.ORCID,Lovell G. H.ORCID,Lucarelli C.ORCID,Lucchesi D.ORCID,Luchuk S.ORCID,Lucio Martinez M.ORCID,Lukashenko V.ORCID,Luo Y.ORCID,Lupato A.ORCID,Luppi E.ORCID,Lynch K.ORCID,Lyu X.-R.ORCID,Ma G. M.ORCID,Ma R.ORCID,Maccolini S.ORCID,Machefert F.ORCID,Maciuc F.ORCID,Mackay I.ORCID,Madhan Mohan L. R.ORCID,Madurai M. M.ORCID,Maevskiy A.ORCID,Magdalinski D.ORCID,Maisuzenko D.ORCID,Majewski M. W.,Malczewski J. J.ORCID,Malde S.ORCID,Malecki B.ORCID,Malentacca L.,Malinin A.ORCID,Maltsev T.ORCID,Manca G.ORCID,Mancinelli G.ORCID,Mancuso C.ORCID,Manera Escalero R.,Manuzzi D.ORCID,Marangotto D.ORCID,Marchand J. F.ORCID,Marchevski R.ORCID,Marconi U.ORCID,Mariani S.ORCID,Marin Benito C.ORCID,Marks J.ORCID,Marshall A. M.ORCID,Marshall P. J.,Martelli G.ORCID,Martellotti G.ORCID,Martinazzoli L.ORCID,Martinelli M.ORCID,Martinez Santos D.ORCID,Martinez Vidal F.ORCID,Massafferri A.ORCID,Materok M.ORCID,Matev R.ORCID,Mathad A.ORCID,Matiunin V.ORCID,Matteuzzi C.ORCID,Mattioli K. R.ORCID,Mauri A.ORCID,Maurice E.ORCID,Mauricio J.ORCID,Mayencourt P.ORCID,Mazurek M.ORCID,McCann M.ORCID,Mcconnell L.ORCID,McGrath T. H.ORCID,McHugh N. T.ORCID,McNab A.ORCID,McNulty R.ORCID,Meadows B.ORCID,Meier G.ORCID,Melnychuk D.ORCID,Merk M.ORCID,Merli A.ORCID,Meyer Garcia L.ORCID,Miao D.ORCID,Miao H.ORCID,Mikhasenko M.ORCID,Milanes D. A.ORCID,Minotti A.ORCID,Minucci E.ORCID,Miralles T.ORCID,Mitchell S. E.ORCID,Mitreska B.ORCID,Mitzel D. S.ORCID,Modak A.ORCID,Mödden A.ORCID,Mohammed R. A.ORCID,Moise R. D.ORCID,Mokhnenko S.ORCID,Mombächer T.ORCID,Monk M.ORCID,Monroy I. A.ORCID,Monteil S.ORCID,Morcillo Gomez A.ORCID,Morello G.ORCID,Morello M. J.ORCID,Morgenthaler M. P.ORCID,Moron J.ORCID,Morris A. B.ORCID,Morris A. G.ORCID,Mountain R.ORCID,Mu H.ORCID,Mu Z. M.ORCID,Muhammad E.ORCID,Muheim F.ORCID,Mulder M.ORCID,Müller K.ORCID,Mũnoz-Rojas F.ORCID,Murta R.ORCID,Naik P.ORCID,Nakada T.ORCID,Nandakumar R.ORCID,Nanut T.ORCID,Nasteva I.ORCID,Needham M.ORCID,Neri N.ORCID,Neubert S.ORCID,Neufeld N.ORCID,Neustroev P.,Newcombe R.,Nicolini J.ORCID,Nicotra D.ORCID,Niel E. M.ORCID,Nikitin N.ORCID,Nogga P.,Nolte N. S.ORCID,Normand C.ORCID,Novoa Fernandez J.ORCID,Nowak G.ORCID,Nunez C.ORCID,Nur H. N.ORCID,Oblakowska-Mucha A.ORCID,Obraztsov V.ORCID,Oeser T.ORCID,Okamura S.ORCID,Oldeman R.ORCID,Oliva F.ORCID,Olocco M.ORCID,Onderwater C. J. G.ORCID,O’Neil R. H.ORCID,Goicochea J. M. OtaloraORCID,Ovsiannikova T.ORCID,Owen P.ORCID,Oyanguren A.ORCID,Ozcelik O.ORCID,Padeken K. O.ORCID,Pagare B.ORCID,Pais P. R.ORCID,Pajero T.ORCID,Palano A.ORCID,Palutan M.ORCID,Panshin G.ORCID,Paolucci L.ORCID,Papanestis A.ORCID,Pappagallo M.ORCID,Pappalardo L. L.ORCID,Pappenheimer C.ORCID,Parkes C.ORCID,Passalacqua B.ORCID,Passaleva G.ORCID,Passaro D.ORCID,Pastore A.ORCID,Patel M.ORCID,Patoc J.ORCID,Patrignani C.ORCID,Pawley C. J.ORCID,Pellegrino A.ORCID,Pepe Altarelli M.ORCID,Perazzini S.ORCID,Pereima D.ORCID,Pereiro Castro A.ORCID,Perret P.ORCID,Perro A.ORCID,Petridis K.ORCID,Petrolini A.ORCID,Petrucci S.ORCID,Pham H.ORCID,Pica L.ORCID,Piccini M.ORCID,Pietrzyk B.ORCID,Pietrzyk G.ORCID,Pinci D.ORCID,Pisani F.ORCID,Pizzichemi M.ORCID,Placinta V.ORCID,Plo Casasus M.ORCID,Polci F.ORCID,Poli Lener M.ORCID,Poluektov A.ORCID,Polukhina N.ORCID,Polyakov I.ORCID,Polycarpo E.ORCID,Ponce S.ORCID,Popov D.ORCID,Poslavskii S.ORCID,Prasanth K.ORCID,Prouve C.ORCID,Pugatch V.ORCID,Punzi G.ORCID,Qian W.ORCID,Qin N.ORCID,Qu S.ORCID,Quagliani R.ORCID,Rabadan Trejo R. I.ORCID,Rachwal B.ORCID,Rademacker J. H.ORCID,Rama M.ORCID,Ramírez García M.ORCID,Ramos Pernas M.ORCID,Rangel M. S.ORCID,Ratnikov F.ORCID,Raven G.ORCID,Rebollo De Miguel M.ORCID,Redi F.ORCID,Reich J.ORCID,Reiss F.ORCID,Ren Z.ORCID,Resmi P. K.ORCID,Ribatti R.ORCID,Ricart G. 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Abstract

AbstractThe decays $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{(*)0}{{K} ^-} $$ Λ b 0 Λ c + D ¯ ( ) 0 K - and $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^{*-}_{s}} $$ Λ b 0 Λ c + D s - are observed for the first time, in proton-proton collision data at $$\sqrt{s} =13\text {Te\hspace{-1.00006pt}V} $$ s = 13 Te V , corresponding to an integrated luminosity of 5.4$$\text {fb} ^{-1}$$ fb - 1 collected with the LHCb detector. Their ratios of branching fractions with respect to the $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^-_{s}} $$ Λ b 0 Λ c + D s - mode are measured to be $$\begin{aligned} \begin{aligned} \frac{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^0} {{K} ^-} \right) }{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^-_{s}} \right) }&= 0.1908 {}_{-0.0034}^{+0.0036} {}_{-0.0018}^{+0.0016} \pm 0.0038,\\ \frac{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{*0}} {{K} ^-} \right) }{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^-_{s}} \right) }&= 0.589 {}_{-0.017}^{+0.018} {}_{-0.018}^{+0.017} \pm 0.012,\\ \frac{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^{*-}_{s}} \right) }{\mathcal {B}\left( {{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {{D} ^-_{s}} \right) }&= 1.668 \pm 0.022 {}_{-0.055}^{+0.061}, \end{aligned} \end{aligned}$$ B Λ b 0 Λ c + D ¯ 0 K - B Λ b 0 Λ c + D s - = 0.1908 - 0.0034 + 0.0036 - 0.0018 + 0.0016 ± 0.0038 , B Λ b 0 Λ c + D ¯ 0 K - B Λ b 0 Λ c + D s - = 0.589 - 0.017 + 0.018 - 0.018 + 0.017 ± 0.012 , B Λ b 0 Λ c + D s - B Λ b 0 Λ c + D s - = 1.668 ± 0.022 - 0.055 + 0.061 , where the first uncertainties are statistical, the second systematic, and the third, for the $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{(*)0}{{K} ^-} $$ Λ b 0 Λ c + D ¯ ( ) 0 K - decays, are due to the uncertainties on the branching fractions of the $${{D} ^-_{s}} \!\rightarrow {{K} ^-} {{K} ^+} {{\pi } ^-} $$ D s - K - K + π - and $${{\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^0} \!\rightarrow {{K} ^+} {{\pi } ^-} $$ D ¯ 0 K + π - decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in $${{\varLambda } ^0_{b}} \!\rightarrow {{\varLambda } ^+_{c}} {\hspace{1.79993pt}\overline{\hspace{-1.79993pt}D}} {}^{(*)0}{{K} ^-} $$ Λ b 0 Λ c + D ¯ ( ) 0 K - decay channels.

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