Measurement Of The Ratio Of Branching Fractions Of The Decays Lambda(0)(B)-> Psi(2s) Lambda And Lambda(0)(B)-> J/Psi Lambda

R. Aaij,B. Adeva,M. Adinolfi,Z. Ajaltouni,S. Akar,J. Albrecht,F. Alessio,M. Alexander, A. Alfonso Albero,S. Ali, G. Alkhazov,P. Alvarez Cartelle,A. A. Alves,S. Amato,S. Amerio,Y. Amhis,L. An,L. Anderlini,G. Andreassi,M. Andreotti,J. E. Andrews,R. B. Appleby,F. Archilli,J. Arnau Romeu,A. Artamonov,M. Artuso,E. Aslanides,M. Atzeni,G. Auriemma,M. Baalouch,I. Babuschkin,S. Bachmann,J. J. Back,A. Badalov,C. Baesso,S. Baker,V. Balagura,W. Baldini,A. Baranov,R. J. Barlow,C. Barschel,S. Barsuk,W. Barter,F. Baryshnikov,V. Batozskaya,V. Battista,A. Bay,L. Beaucourt,J. Beddow,F. Bedeschi,I. Bediaga,A. Beiter,L. J. Bel,N. Beliy,V. Bellee,N. Belloli,K. Belous,I. Belyaev,G. Bencivenni,E. Ben-Haim,S. Benson,S. Beranek,A. Berezhnoy,R. Bernet, D. Berninghoff,E. Bertholet,A. Bertolin,C. Betancourt,F. Betti,M. O. Bettler,Ia. Bezshyiko,S. Bifani,P. Billoir,A. Birnkraut,A. Bizzeti,M. Bjorn,T. Blake,F. Blanc,S. Blusk,V. Bocci,T. Boettcher,A. Bondar,N. Bondar,I. Bordyuzhin,S. Borghi,M. Borisyak,M. Borsato,F. Bossu,M. Boubdir,T. J. V. Bowcock,E. Bowen,C. Bozzi,S. Braun,J. Brodzicka,D. Brundu,E. Buchanan,C. Burr,A. Bursche,J. Buytaert,W. Byczynski,S. Cadeddu,H. Cai,R. Calabrese,R. Calladine,M. Calvi,M. Calvo Gomez,A. Camboni,P. Campana,D. H. Campora Perez,L. Capriotti,A. Carbone,G. Carboni,R. Cardinale, A. Cardini,P. Carniti,L. Carson,K. Carvalho Akiba,G. Casse,L. Cassina,M. Cattaneo,G. Cavallero,R. Cenci,D. Chamont,M. G. Chapman,M. Charles,Ph. Charpentier,G. Chatzikonstantinidis,M. Chefdeville,S. Chen,S. F. Cheung,S. -G. Chitic,V. Chobanova,M. Chrzaszcz,A. Chubykin,P. Ciambrone,X. Cid Vidal,G. Ciezarek,F. Cindolo,P. E. L. Clarke,M. Clemencic,H. V. Cliff,J. Closier,V. Coco,J. Cogan,E. Cogneras,V. Cogoni,L. Cojocariu,P. Collins,T. Colombo,A. Comerma-Montells,A. Contu,G. Coombs,S. Coquereau,G. Corti,M. Corvo,C. M. Costa Sobral,B. Couturier,G. A. Cowan,D. C. Craik,A. Crocombe,M. Cruz Torres,R. Currie,F. Da Cunha Marinho,C. L. Da Silva,E. Dall'Occo,J. Dalseno,C. D'Ambrosio,P. D'Argent,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,P. De Simone,J. A. De Vries,C. T. Dean,D. Decamp,L. Del Buono,H. -P. Dembinski,M. Demmer,A. Dendek,D. Derkach,O. Deschamps,F. Dettori,B. Dey,A. Di Canto,P. Di Nezza,H. Dijkstra,F. Dordei,M. Dorigo,A. C. Dos Reis,A. Dosil Suarez,L. Douglas,A. Dovbnya,K. Dreimanis,L. Dufour,G. Dujany,P. Durante,J. M. Durham,D. Dutta,R. Dzhelyadin,M. Dziewiecki,A. Dziurda,A. Dzyuba,S. Easo,M. Ebert,U. Egede,V. Egorychev, S. Eidelman,S. Eisenhardt,U. Eitschberger,R. Ekelhof,L. Eklund,S. Ely,S. Esen,H. M. Evans,T. Evans,A. Falabella,C. Farber,N. Farley,S. Farry,D. Fazzini,L. Federici,M. Feo,D. Ferguson,G. Fernandez,P. Fernandez Declara, A. Fernandez Prieto,F. Ferrari,L. Ferreira Lopes,F. Ferreira Rodrigues,M. Ferro-Luzzi,S. Filippov,R. A. Fini,M. Fiorini,M. Firlej,C. Fitzpatrick,T. Fiutowski,F. Fleuret,M. Fontana,F. Fontanelli,R. Forty,V. Franco Lima,M. Frank,C. Frei,J. Fu,W. Funk,E. 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Ilten,A. Inyakin,R. Jacobsson,J. Jalocha,E. Jans,A. Jawahery,F. Jiang,M. John,D. Johnson,C. R. Jones,C. Joram,B. Jost,N. Jurik,S. Kandybei,M. Karacson,J. M. Kariuki,S. Karodia, N. Kazeev, M. Kecke, F. Keizer,M. Kelsey,M. Kenzie,T. Ketel,E. Khairullin,B. Khanji,C. Khurewathanakul,T. Kirn,S. Klaver,K. Klimaszewski,T. Klimkovich,S. Koliiev,M. Kolpin, R. Kopecna,P. Koppenburg,A. Kosmyntseva,S. Kotriakhova,M. Kozeiha,L. Kravchuk,M. Kreps,F. Kress,P. Krokovny,W. Krzemien,W. Kucewicz,M. Kucharczyk,V. Kudryavtsev,A. K. Kuonen,T. Kvaratskheliya,D. Lacarrere,G. Lafferty,A. Lai,G. Lanfranchi,C. Langenbruch,T. Latham,C. Lazzeroni,R. Le Gac,R. Lefevre,A. Leflat,J. Lefrancois,F. Lemaitre,O. Leroy,T. Lesiak, B. Leverington,P. -R. Li,T. Li,Y. Li, Z. Li,X. Liang,T. Likhomanenko,R. Lindner,F. Lionetto,V. Lisovskyi,X. Liu,D. Loh,A. Loi,I. Longstaff,J. H. Lopes,D. Lucchesi, M. Lucio Martinez,H. Luo,A. Lupato,E. Luppi,O. Lupton,A. Lusiani,X. Lyu,F. Machefert,F. Maciuc,V. Macko, P. Mackowiak,S. 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Vieites Diaz, H. Viemann,X. Vilasis-Cardona,M. Vitti,V. Volkov,A. Vollhardt,B. Voneki,A. Vorobyev,V. Vorobyev,N. Voropaev,C. Voss,R. Waldi,J. Walsh, J. Wang, M. Wang,Y. Wang,D. R. Ward,H. M. Wark,N. K. Watson,D. Websdale,A. Weiden,C. Weisser,M. Whitehead,J. Wicht,G. Wilkinson,M. Wilkinson,M. Williams, M. R. J. Williams,T. Williams,F. F. Wilson,J. Wimberley,M. Winn,J. Wishahi,W. Wislicki,M. Witek,G. Wormser,S. A. Wotton,K. Wyllie,Y. Xie,M. Xu,Q. Xu,Z. Xu,Z. Xu,Z. Yang,Z. Yang,Y. Yao,H. Yin,J. Yu,X. Yuan,O. Yushchenko,K. A. Zarebski,M. Zavertyaev, L. Zhang,Y. Zhang,A. Zhelezov,Y. Zheng,X. Zhu,V. Zhukov,J. B. Zonneveld,S. Zucchelli

JOURNAL OF HIGH ENERGY PHYSICS（2019）

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摘要

Using pp collisions corresponding to 3 fb integrated luminosity, recorded by the LHCb experiment at centre- of- mass energies of 7 and 8TeV, the ratio of branching fractions B (0b ! (2 S) ) =B (0b ! J= ) = 0 : 513 0 : 023 (stat) 0 : 016 (syst) 0 : 011 (B) is determined. The fi rst uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.

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B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experiments)

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