Evidence for a New Structure in the J/ψp and J/ψp[over ¯] Systems in B_{s}^{0}→J/ψpp[over ¯] Decays.
R Aaij,A S W Abdelmotteleb,C Abellán Beteta,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C A Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,J L Amey,Y Amhis,L An,L Anderlini,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,J J Back,P Baladron Rodriguez,V Balagura,W Baldini, J Baptista Leite,R J Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,J M Basels,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 Belous,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,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,M S Bieker,S Bifani,P Billoir,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 Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,J T Borsuk,S A Bouchiba,T J V Bowcock,A Boyer,C Bozzi,M J Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,A T Burke,C Burr,A Bursche,A Butkevich,J S Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,A F Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale, A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,A J Chadwick,M G Chapman,M Charles,Ph Charpentier,G Chatzikonstantinidis,C A Chavez Barajas,M Chefdeville,C Chen,S Chen,A Chernov,V Chobanova,S Cholak,M Chrzaszcz,A Chubykin,V Chulikov,P Ciambrone,M F Cicala,X Cid Vidal,G Ciezarek,P E L Clarke,M Clemencic,H V Cliff,J Closier,J L Cobbledick,V Coco,J A B Coelho,J Cogan,E Cogneras,L Cojocariu,P Collins,T Colombo,L Congedo,A Contu,N Cooke,G Coombs,I Corredoira,G Corti,C M Costa Sobral,B Couturier,D C Craik,J Crkovská,M Cruz Torres,R Currie,C L Da Silva,S Dadabaev,L Dai,E Dall'Occo,J Dalseno,C D'Ambrosio,A Danilina,P d'Argent,J E Davies,A Davis,O De Aguiar Francisco,K De Bruyn,S De Capua,M De Cian,J M De Miranda,L De Paula,M De Serio, D De Simone,P De Simone,J A de Vries,C T Dean,D Decamp,L Del Buono,B Delaney,H-P Dembinski,A Dendek,V Denysenko,D Derkach,O Deschamps,F Desse,F Dettori,B Dey,A Di Cicco,P Di Nezza,S Didenko,L Dieste Maronas,H Dijkstra,V Dobishuk, C Dong,A M Donohoe,F Dordei,A C Dos Reis,L Douglas,A Dovbnya,A G Downes,M W Dudek,L Dufour,V Duk,P Durante,J M Durham,D Dutta,A Dziurda,A Dzyuba,S Easo, U Egede,V Egorychev, S Eidelman,S Eisenhardt,S Ek-In,L Eklund,S Ely,A Ene,E Epple,S Escher,J Eschle,S Esen,T Evans,A Falabella,J Fan,Y Fan,B Fang,S Farry,D Fazzini,M Féo, A Fernandez Prieto,A D Fernez,F Ferrari,L Ferreira Lopes,F Ferreira Rodrigues,S Ferreres Sole,M Ferrillo,M Ferro-Luzzi,S Filippov,R A Fini,M Fiorini,M Firlej,K M Fischer,D S Fitzgerald,C Fitzpatrick,T Fiutowski,A Fkiaras, F Fleuret,M Fontana,F Fontanelli,R Forty,D Foulds-Holt,V Franco Lima,M Franco Sevilla,M Frank,E Franzoso,G Frau,C Frei,D A Friday,J Fu,Q Fuehring,W Funk,E Gabriel,T Gaintseva,A Gallas Torreira,D Galli,S Gambetta,Y Gan,M Gandelman,P Gandini,Y Gao,M Garau,L M Garcia Martin,P Garcia Moreno,J García Pardiñas,B Garcia Plana,F A Garcia Rosales,L Garrido,C Gaspar,R E Geertsema,D Gerick,L L Gerken,E Gersabeck,M Gersabeck,T Gershon,D Gerstel,Ph Ghez,V Gibson,H K Giemza,A L Gilman,M Giovannetti,A Gioventù,P Gironella Gironell,L Giubega,C Giugliano,K Gizdov,E L Gkougkousis,V V Gligorov,C Göbel,E Golobardes,D Golubkov,A Golutvin,A Gomes,S Gomez Fernandez,F Goncalves Abrantes,M Goncerz,G Gong,P Gorbounov,I V Gorelov,C Gotti, E Govorkova,J P Grabowski,T Grammatico,L A Granado Cardoso,E Graugés,E Graverini,G Graziani,A Grecu,L M Greeven,N A Grieser,P Griffith,L Grillo,S Gromov,B R Gruberg Cazon,C Gu, M Guarise,P A Günther,E Gushchin,A Guth,Y Guz,T Gys,T Hadavizadeh,G Haefeli,C Haen,J Haimberger,T Halewood-Leagas,P M Hamilton,J P Hammerich,Q Han,X Han,T H Hancock,S Hansmann-Menzemer,N Harnew,T Harrison,C Hasse,M Hatch,J He,M Hecker,K Heijhoff,K Heinicke,A M Hennequin,K Hennessy,L Henry,J Heuel,A Hicheur,D Hill,M Hilton,S E Hollitt,J Hu,J Hu,W Hu,X Hu,W Huang,X Huang,W Hulsbergen, R J Hunter,M Hushchyn,D Hutchcroft,D Hynds, P Ibis,M Idzik, D Ilin,P Ilten, A Inglessi, A Ishteev,K Ivshin,R Jacobsson,S Jakobsen,E Jans,B K Jashal,A Jawahery,V Jevtic,F Jiang,M John,D Johnson,C R Jones,T P Jones,B Jost,N Jurik,S H Kalavan Kadavath,S Kandybei,Y Kang,M Karacson,M Karpov,F Keizer,M Kenzie,T Ketel,B Khanji, A Kharisova,S Kholodenko,T Kirn,V S Kirsebom, O Kitouni,S Klaver,K Klimaszewski,M R Kmiec,S Koliiev,A Kondybayeva, A Konoplyannikov,P Kopciewicz, R Kopecna,P Koppenburg, M Korolev, I Kostiuk, O Kot,S Kotriakhova,P Kravchenko,L Kravchuk,R D Krawczyk,M Kreps, F Kress, S Kretzschmar,P Krokovny,W Krupa,W 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Physical review letters（2022）
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摘要
An amplitude analysis of flavor-untagged B_{s}^{0}→J/ψpp[over ¯] decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb^{-1}. Evidence for a new structure in the J/ψp and J/ψp[over ¯] systems with a mass of 4337_{-4}^{+7} _{-2}^{+2} MeV and a width of 29_{-12}^{+26} _{-14}^{+14} MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7σ, depending on the assigned J^{P} hypothesis.
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