Search For The X(4140) State In B+ -> J/Psi Phi K+ Decays With The D0 Detector

VM M. Abazov,Brad K. Abbott,Bobby Samir Acharya,M. R. Adams,T. Adams,J. P. Agnew,G. D. Alexeev,G. D. Alkhazov,Anrew Alton,Andrew Askew, S. Atkins,K. Augsten,C. Avila,Fr��d��rique Badaud,L. Bagby,B. Baldin,Dmitry V. Bandurin,Sw W. Banerjee,Elisabetta Barberis,P. Baringer,J. F. Bartlett,Ursula Bassler,V��ctor E. Bazterra,A. Bean,M. Begalli,Leo Bellantoni,S. B. Beri,G. Bernardi,Ralf P. Bernhard,Iain A. Bertram,M. Besan?on,R. Beuselinck,Pushpalatha C. Bhat,Sonik M. Bhatia,V. Bhatnagar,Gerald C. Blazey,Susan K. Blessing,K. Bloom,Amber Boehnlein,Daniel Boline,E. E. Boos,Guennadi Borissov,Andrew Brandt,O. Brandt,Raymond J. Brock, A. Bross,D. N. Brown,X. B. Bu,M. Buehler,V. Buescher,Viacheslav E. Bunichev,Sebastien Burdin,Claus P. Buszello,Enrique Camacho-P��rez,B. C K Casey,H. Castilla-Valdez,S. Caughron,Sayan Chakrabarti,K. M. Chan,Abhishek Chandra,��milien Chapon,G. Chen,S. W. Cho,S. Choi,B. C. Choudhary,S. Cihangir,D. R. Claes,J. Clutter,M. Cooke,W. E. Cooper,M. Corcoran,F. Couderc,M. C. Cousinou,D. Cutts,Ananta Lal Das,G. S. Davies,S. J. De Jong,Eduard De La De La Cruz-Burelo,Fr��d��ric D��liot,Regina F. D��mina,D. Denisov,Sergey P. Denisov, Shantanu Desai,C. Deterre,Kayle DeVaughan,H. T. Diehl,M. Diesburg,Peng Ding,A. Dominguez,Awadhesh Kumar Dubey,L. V. Dudko,Arnaud Duperrin,S. Dutt,M. Eads,D. Edmunds,J. Ellison,V. D. Elvira,Yuji Enari,Harold G. Evans,V. N. Evdokimov,L. Feng,T. Ferbel,Frank Fiedler,Frank Filthaut,W. C. Fisher,H. Eugene Fisk,Michael R. Fortner,Howard S. Fox,Stuart Fuess,Peter H. Garb��ncius,A. Garcia-Bellido,J. A. Garc��a-Gonz��lez,V. R. Gavrilov,W. Geng,C. E. Gerber,Y. Gershtein,G. Ginther,Georgy A. Golovanov,Paul D. Grannis, S. Greder,Herbert B. Greenlee,G. Grenier,Ph L Y Gris,Jean Fran?ois Grivaz,Alexander Grohsjean,Stefan Gr��nendahl, M. W. Gr��newald,Thibault Guillemin,G. Gutierrez,Phillip Gutierrez,J. Haley,L. Han,Kristian U. Harder,Amnon Harel,J. M. Hauptman,J. Hays,Timothy L. Head, T. Hebbeker,David Hedin,H. Hegab,Ann P. Heinson,U. Heintz,Carsten Hensel,I. Heredia De La Heredia De La Cruz,Ken R. Herner,G. G. Hesketh,M. D. Hildreth,R. Hirosky, T. Hoang,John D. Hobbs,B. Hoeneisen,Jason M. Hogan,Marc Hohlfeld,Jeremiah L. Holzbauer,I. J. Howley,Zdenek Hubacek,V. Hynek,I. Iashvili,Y. Ilchenko,Robert A. Illingworth,A. S. Ito,S. Jabeen,Marc Olivier Jaffr��,A. Jayasinghe,M. S. Jeong,Rick Jesik,Peng Jiang,Ken A. Johns, Erik M. Johnson,Marshall C. Johnson,A. M. Jonckheere,P. Jonsson,J. Joshi,A. W. Jung,Aurelio Juste,Eric Kajfasz,D. E. Karmanov,I. Katsanos,Robert L. Kehoe,S. Kermiche,Norik S. Khalatyan,Alexandre I. Khanov,A. Kharchilava,Yu N. Kharzheev,I. L. Kiselevich,J. M. Kohli,A. V. Kozelov,J. K. Kraus,Anil Sampath Kumar,Alexander Kup?o,T. Kur?a,Valentin A. Kuzmin,S. Lammers,P. Lebrun, H. S. Lee,S. W. Lee, W. M. Lee,X. Lei,J. Lellouch, D. Li,Holing Li,L. Li,Q. Z. Li,J. K. Lim,D. Lincoln,James T. Linnemann,V. V. Lipaev, R. Lipton,Huan Liu,Yanping Liu,A. A. Lobodenko,Milo? V. Lokaj��?ek,R. Lopes De Sa,Ren�� Luna Luna-Garc��a,Adam L. Lyon, A. K A MacIel,R. Madar, R. Maga?a Villalba,Sarah Alam Malik,V. L. Malyshev,J. Mansour,J. Mart��nez-Ortega,Robert L. McCarthy,C. L. McGivern,M. M. Meijer,Alex Melnitchouk,D��bora Peres Menezes,Pedro G. Mercadante,M. M. Merkin,A. Meyer,Jochen P. Meyer,F. Miconi,N. K. Mondal, M. J. Mulhearn,Elizabeth Nagy,M. Narain,Ruchika Nayyar,Homer A. Neal,J. P. Negret,P. Neustroev,Hoan T. Nguyen,Thomas Nunnemann,Jesus Orduna,N. Osman,J. Osta,A. Pal,N. Parashar,Vivek Parihar,S. K. Park,R. Partridge,Nirmalya Parua,Amit N. Patwa,B. Penning,M. A. Perfilov,Yvonne Peters,Konstantinos A. Petridis,Gianluca Petrillo,P. P��troff,Marc Andr�� Pleier,Vladimir M. Podstavkov,A. V. Popov,M. Prewitt,Darren D. Price,N. N. Prokopenko,Jianming Qian,Arnulf Quadt,B. Quinn,P. N. Ratoff,I. Razumov,Isabelle Ripp-Baudot,F. K. Rizatdinova,Mandy Rominsky,Anthony Joseph Ross,Christophe R. Royon,P. Rubinov,R. Ruchti, G. Sajot, A. S��nchez-Hern��ndez,M. P. Sanders,Angela S. Santos,G. Paul Savage,Lee Sawyer,Tim Scanlon,R. Dean Schamberger,Yu A. Scheglov,H. Schellman,C. Schwanenberger,Reinhard Schwienhorst,Jadranka Sekaric,Horst Severini,Elizaveta K. Shabalina,Viatcheslav V. Shary,S. Shaw,Andrey A. Shchukin,Vladislav ?im��k,Patrick L. Skubic, P. F. Slattery,D. N. Smirnov,G. R. Snow,James M. Snow,Scott S. Snyder,S. S?ldner-Rembold,L. Sonnenschein,Karel Soustru?n��k,Jan Stark,Dina A. Stoyanova,M. G. Strauss,Larry J. Suter,Peter Svoisky,M. Titov,V. V. Tokmenin,Y. T. Tsai,Dmitri Tsybychev,Boris Tuchming,C. Tully,L. Uvarov,S. Uvarov,S. A. Uzunyan,R. Van Kooten,W. M. Van Leeuwen,N. Varelas,Erich W. Varnes,I. A. Vasilyev,A. Y. Verkheev,L. S. Vertogradov,Marco Verzocchi,Mika Vesterinen,D. Vilanova, P. Vokac,Horst D. Wahl,M. H L S Wang, J. Warchol,Gordon Watts,M. Wayne,J. Weichert,L. Welty-Rieger,Mark R J Williams,G. W. Wilson,Markus Wobisch,D. R. Wood,T. R. Wyatt,Y. Xie,R. Yamada,Shengwei Yang,T. Yasuda,Yu A. Yatsunenko,W. Ye,Z. Ye,H. Yin,K. Yip,S. W. Youn,J. M. Yu,J. Zennamo,T. G. Zhao, B. Zhou,J. Zhu,M. Zielinski,Daria Ziemi��ska,Lidia ?ivkovi?

PHYSICAL REVIEW D（2014）

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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 p (p) over bar collisions at root 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 +/- 4.3(stat) +/- 6.6(syst) MeV and its width to be Gamma = 19.9 +/- 12.6(stat)(-8.0)(+3.0)(syst) MeV.

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