Search for theX(4140)state inB+→J/ψϕK+decays with the D0 detector

V M Abazov ,B Abbott,S Söldner-Rembold,F Rizatdinova,J Hays,A Dominguez,R Bernhard,R Kehoe,M Begalli,J Osta,B Baldin,H Liu,M Buehler,D Edmunds,S Dutt,N Varelas,D Smirnov,J Snow,I Howley,D Boline,B Zhou,S Cihangir,I Katsanos,M Hohlfeld,R Magaña-Villalba,S Fuess,R Yamada,M Besançon,F Badaud,L Sonnenschein,T Nunnemann,P Skubic,P Neustroev,P Svoisky,Y Ilchenko,A Jonckheere,A Patwa,T Hebbeker,W Geng,G Davies,R Partridge,K Herner,J Joshi,S Jabeen,T Head,R Jesik,A Dubey,A Meyer,A Khanov,D Vilanova,T Kurča,C Deterre,A Melnitchouk,E Johnson,A Chandra,M Vesterinen,S Chakrabarti,P Lebrun,R Illingworth,R Van Kooten,U Bassler,R Ruchti,I Kiselevich,Y Gershtein,A Sánchez-Hernández,J Qian,D Menezes,A Grohsjean,B Tuchming,G Golovanov,H Greenlee,P Pétroff,R Madar,M Fortner,J Weichert,M Narain,B Penning,A Jayasinghe,J.-F Grivaz,M Eads,D Tsybychev,S Snyder,S Blessing,J Martínez-Ortega,B Quinn,F Miconi,W Ye,E De La Cruz-Burelo,G Grenier,G Watts,L Bagby,Y Peters,J Orduna,H Hegab,D Denisov,N Prokopenko,S Yang,M Merkin,I Razumov,S Uzunyan,S Grünendahl,A Alton,G Alkhazov,M Jaffré,J Lellouch,L Li,S Kermiche,J Sekaric,G Bernardi,G Petrillo,E Kajfasz,S Banerjee,T Hoang,H Schellman,Y Enari,H Yin,I Ripp-Baudot,B Hoeneisen,M Rominsky,L Han,L Welty-Rieger,S Greder,J Clutter,L Suter,U Heintz,K Harder,M Mulhearn,I Heredia-De La Cruz,V Hynek,T Yasuda,N Parashar,D Karmanov,F Fiedler,M Diesburg,L Uvarov,K Devaughan,Y Scheglov,L Bellantoni,G Ginther,D Hedin,G Sajot,J Haley,R Beuselinck,J Warchol,M Cooke,A Kharchilava,C Schwanenberger,S Malik,E Camacho-Pérez,P Rubinov,A Bross,C Hensel,N Parua,S Caughron,R Brock,T Scanlon,K Yip,S Uvarov,S Atkins,V Parihar,N Khalatyan,M Prewitt,A Pal,O Brandt,T Ferbel,L Sawyer,G Savage,A Askew,V Bunichev,J Zennamo,F Filthaut,A Lobodenko,V Shary,J Ellison,A Boehnlein,N Osman,A Brandt,S Lammers,R Nayyar,R Hirosky,M Strauss,A Quadt,A Duperrin,F Déliot,T Adams,J Kraus,J Stark,E Shabalina,E Barberis,A Ross,S Bhatia,C Tully,V Buescher,K Augsten,E Nagy,H Li,D Lincoln,D Brown,S Burdin,G Borissov,R Schwienhorst,Y Xie,Z Ye,H Fox,D Price,I Iashvili,Ph Gris,F Couderc,P Slattery,J Zhu,M Wayne,P G Mercadante ,Abhishek Das ,K A Johns ,Feng Liu ,Q Z Li ,A García-Bellido ,M Hildreth ,Peng Jiang ,T Zhao ,W M Van Leeuwen ,G R Snow ,Rafael De ,I A Bertram ,J A García-González ,P C Bhat ,H S Lee ,V Šimák ,H E Fisk ,A Kupčo ,R D Schamberger ,A Juste Rozas ,P Vokáč ,D Ziemińska ,J D Mansour ,M P Sanders ,R Luna-García ,А В Попов ,M H L S Wang ,A W Jung ,J P Negret ,J L Holzbauer ,P D Grannis ,C Ávila ,M Lokajı́ček ,P N Ratoff ,A S Ito ,D V Bandurin ,B C Choudhary ,H Castilla‐Valdez ,P Jönsson ,É Chapon ,H A Neal ,C L Mcgivern ,В Н Евдокимов ,M M Meijer ,J Yu ,C E Gerber ,P Gutiérrez ,D Wood ,D Ćutts ,M.-A Pleier ,Jaehoon Lim ,S W Lee ,T R Wyatt ,M Zieliński ,R L Mccarthy ,A Y Verkheev ,M R Adams ,J M Hauptman ,V E Bazterra ,Ashish Kumar ,L Dudko ,E Boos ,V V Tokmenin ,M C Cousinou ,A S Santos ,J M Hogan ,B S Acharya ,H T Diehl ,V V Lipaev ,W C Fisher ,J P Agnew ,V L Malyshev ,Y A Yatsunenko ,E W Varnes ,W M Lee ,V A Kuzmin ,D A Stoyanova ,I A Vasilyev ,V M Podstavkov ,P H Garbincius ,B C.k Casey ,J Hobbs ,W E Cooper ,Serguei Denisov ,X B Bu ,A L Lyon ,M S Jeong ,P F Ding ,J M Kohli ,Z Hubáček ,L S Vertogradov ,S W Cho ,G D Alexeev ,A K.a Maciel ,Sijbrand J De Jong ,J F Bartlett ,A V Kozelov ,D R Claes ,M Grünewald ,V D Elvira ,S K Park ,Guillermo Reales Gutiérrez ,S M Shaw ,K Chan ,G W Wilson ,S B Beri ,Y T Tsai ,Y N Kharzheev ,N K Mondal ,S K Choi ,M Williams ,H Nguyen ,S W Youn ,C P Buszello ,R Démina ,G G Hesketh ,K Soustružnı́k ,A P Heinson ,H D Wahl ,A A Shchukin ,J Meyer,C Royon,M Verzocchi,J Linnemann,K Bloom,K Petridis,M Johnson,M Corcoran,T Guillemin,M Titov,R Lipton,G Chen,V Bhatnagar,H Evans,A Bean,A Harel,P Baringer,M Perfilov,D Li,S Desai,X Lei,V Gavrilov,H Severini,Y Liu,M Wobisch,G Blazey,L Živković

doi:10.1103/physrevd.89.012004

Abstract

We investigate the decay B^+ -> J/psi phi K^+ in a search for the X(4140) state, a narrow threshold resonance in the J/psi phi system. The data sample corresponds to an integrated luminosity of 10.4 fb^{-1} of ppbar collisions at sqrt s =1.96 TeV collected by the D0 experiment at the Fermilab Tevatron collider. We observe a mass peak with a statistical significance of 3.1 standard deviations and measure its invariant mass to be M=4159.0 +-.3 (stat) +- 6.6 (syst) MeV and its width to be Gamma= 19.9+-12.6 (stat)}^{+1.0}_{-8.0} (syst) MeV. Identifying this mass peak as the X(4140), we measure, for M(J/psi phi) <4.59 GeV, the relative branching fraction B_rel= B(B^+ -> X(4140) K^+)/ B(B^+ ->J/psi phi K^+) to be 21+-8 (stat) +- 4 (syst)%. In addition, the data can accommodate the presence of a second enhancement at a mass of 4328.5+- 12.0 MeV.

Full Text