Properties of Z(c)(+/-)(3900) Produced in P(p)over-Bar Collisions
V. M. Abazov,B. Abbott,B. S. Acharya,M. Adams,T. Adams,J. P. Agnew,G. D. Alexeev,G. Alkhazov,A. Alton,A. Askew,S. Atkins,K. Augsten,V. Aushev,Y. Aushev,C. Avila,F. Badaud,L. Bagby,B. Baldin,D. V. Bandurin,S. Banerjee,E. Barberis,P. Baringer,J. F. Bartlett,U. Bassler,V. Bazterra,A. Bean,M. Begalli,L. Bellantoni,S. B. Beri,G. Bernardi,R. Bernhard,I. Bertram,M. Besancon,R. Beuselinck,P. C. Bhat,S. Bhatia,V. Bhatnagar,G. Blazey,S. Blessing,K. Bloom,A. Boehnlein,D. Boline,E. E. Boos,G. Borissov,M. Borysova,A. Brandt,O. Brandt,M. Brochmann,R. Brock,A. Bross,D. Brown,X. B. Bu,M. Buehler,V. Buescher,V. Bunichev,S. Burdin,C. P. Buszello,E. Camacho-Perez,B. C. K. Casey,H. Castilla-Valdez,S. Caughron,S. Chakrabarti,K. M. Chan,A. Chandra,E. Chapon,G. Chen,S. W. Cho,S. Choi,B. Choudhary,S. Cihangir,D. Claes,J. Clutter,M. Cooke,W. E. Cooper,M. Corcoran,F. Couderc,M. -C. Cousinou,J. Cuth,D. Cutts,A. Das,G. Davies,S. J. de Jong,E. De La Cruz-Burelo,F. Deliot,R. Demina,D. Denisov,S. P. Denisov,S. Desai,C. Deterre,K. DeVaughan,H. T. Diehl,M. Diesburg,P. F. Ding,A. Dominguez,A. Drutskoy,A. Dubey,L. V. Dudko,A. Duperrin,S. Dutt,M. Eads,D. Edmunds,J. Ellison,V. D. Elvira,Y. Enari,H. Evans,A. Evdokimov,V. N. Evdokimov,A. Faure,L. Feng,T. Ferbel,F. Fiedler,F. Filthaut,W. Fisher,H. E. Fisk,M. Fortner,H. Fox,J. Franc,S. Fuess,P. H. Garbincius,A. Garcia-Bellido,J. A. Garcia-Gonzalez,V. Gavrilov,W. Geng,C. E. Gerber,Y. Gershtein,G. Ginther,O. Gogota,G. Golovanov,P. D. Grannis,S. Greder,H. Greenlee,G. Grenier,Ph. Gris,J. -F. Grivaz,A. Grohsjean,S. Grunendahl,M. W. Grunewald,T. Guillemin,G. Gutierrez,P. Gutierrez,J. Haley,L. Han,K. Harder,A. Harel,J. M. Hauptman,J. Hays,T. Head,T. Hebbeker,D. Hedin,H. Hegab,A. P. Heinson,U. Heintz,C. Hensel,I. Heredia-De La Cruz,K. Herner,G. Hesketh,M. D. Hildreth,R. Hirosky,T. Hoang,J. D. Hobbs,B. Hoeneisen,J. Hogan,M. Hohlfeld,J. L. Holzbauer,I. Howley,Z. Hubacek,V. Hynek,I. Iashvili,Y. Ilchenko,R. Illingworth,A. S. Ito,S. Jabeen,M. Jaffre,A. Jayasinghe,M. S. Jeong,R. Jesik,P. Jiang,K. Johns,E. Johnson,M. Johnson,A. Jonckheere,P. Jonsson,J. Joshi,A. W. Jung,A. Juste,E. Kajfasz,D. Karmanov,I. Katsanos,M. Kaur,R. Kehoe,S. Kermiche,N. Khalatyan,A. Khanov,A. Kharchilava,Y. N. Kharzheev,I. Kiselevich,J. M. Kohli,A. V. Kozelov,J. Kraus,A. Kumar,A. Kupco,T. Kurca,V. A. Kuzmin,S. Lammers,P. Lebrun,H. S. Lee,S. W. Lee,W. M. Lee,X. Lei,J. Lellouch,D. Li,H. Li,L. Li,Q. Z. Li,J. K. Lim,D. Lincoln,J. Linnemann,V. V. Lipaev,R. Lipton,H. Liu,Y. Liu,A. Lobodenko,M. Lokajicek,R. Lopes de Sa,R. Luna-Garcia,A. L. Lyon,A. K. A. Maciel,R. Madar,R. Magana-Villalba,S. Malik,V. L. Malyshev,J. Mansour,J. Martinez-Ortega,R. McCarthy,C. L. McGivern,M. M. Meijer,A. Melnitchouk,D. Menezes,P. G. Mercadante,M. Merkin,A. Meyer,J. Meyer,F. Miconi,N. K. Mondal,M. Mulhearn,E. Nagy,M. Narain,R. Nayyar,H. A. Neal,J. P. Negret,P. Neustroev,H. T. Nguyen,T. Nunnemann,J. Orduna,N. Osman,A. Pal,N. Parashar,V. Parihar,S. K. Park,R. Partridge,N. Parua,A. Patwa,B. Penning,M. Perfilov,Y. Peters,K. Petridis,G. Petrillo,P. P. Petroff,M. -A. Pleier,V. M. Podstavkov,A. V. Popov,M. Prewitt,D. Price,N. Prokopenko,J. Qian,A. Quadt,B. Quinn,P. N. Ratoff,I. Razumov,I. Ripp-Baudot,F. Rizatdinova,M. Rominsky,A. Ross,C. Royon,P. Rubinov,R. Ruchti,G. Sajot,A. Sanchez-Hernandez,M. P. Sanders,A. S. Santos,G. Savage,M. Savitskyi,L. Sawyer,T. Scanlon,R. D. Schamberger,Y. Scheglov,H. Schellman,M. Schott,C. Schwanenberger,R. Schwienhorst,J. Sekaric,H. Severini,E. Shabalina,V. Shary,S. Shaw,A. A. Shchukin,O. Shkola,V. Simak,P. Skubic,P. Slattery,G. R. Snow,J. Snow,S. Snyder,S. Soldner-Rembold,L. Sonnenschein,K. Soustruznik,J. Stark,N. Stefaniuk,D. A. Stoyanova,M. Strauss,L. Suter,P. Svoisky,M. Titov,V. V. Tokmenin,Y. -T. Tsai,D. Tsybychev,B. Tuchming,C. Tully,L. Uvarov,S. Uvarov,S. Uzunyan,R. Van Kooten,W. M. van Leeuwen,N. Varelas,E. W. Varnes,I. A. Vasilyev,A. Y. Verkheev,L. S. Vertogradov,M. Verzocchi,M. Vesterinen,D. Vilanova,P. Vokac,H. D. Wahl,M. H. L. S. Wang,J. Warchol,G. Watts,M. Wayne,J. Weichert,L. Welty-Rieger,M. R. J. Williams,G. W. Wilson,M. Wobisch,D. R. Wood,T. R. Wyatt,Y. Xie,R. Yamada,S. Yang,T. Yasuda,Y. 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,Zielinski,D. Zieminska,L. Zivkovic
PHYSICAL REVIEW D（2019）
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摘要
We study the production of the exotic charged charmoniumlike state Z(c)(+/-)(3900) in p (p) over bar collisions through the sequential process psi(4260) -> Z(c)(+/-)(3900)(pi)(-/+), Z(c)(+/-)(3900) -> J/psi pi(+/-). Using the subsample of candidates originating from semi-inclusive weak decays of b-flavored hadrons, we measure the invariant mass and natural width to be M = 3902.6(-5.0)(+5.2)(stat)(-1.4)(+3.3)(syst) MeV and Gamma = 32(-21)(+28)(stat)(-7)(+26)(syst) MeV, respectively. We search for prompt production of the Z(c)(+/-)(3900) through the same sequential process. No significant signal is observed, and we set an upper limit of 0.70 at the 95% credibility level on the ratio of prompt production to the production via b-hadron decays. The study is based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider.
