2024-03-28T23:24:21Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/221542018-06-25T10:36:05Zcom_10261_61com_10261_4col_10261_314
00925njm 22002777a 4500
dc
CDF Collaboration
author
Cabrera, Susana
author
Cuenca Almenar, Cristóbal
author
Álvarez González, B.
author
Casal, Bruno
author
Cuevas, Javier
author
Gómez, G.
author
Rodrigo, Teresa
author
Ruiz Jimeno, Alberto
author
Scodellaro, Luca
author
Vila, Iván
author
Vilar, Rocío
author
Aaltonen, T.
author
2009-06-19
Evidence is reported for a narrow structure near the J/psi phi threshold in exclusive B+ -> J/psi phi K+ decays produced in (p) over barp collisions at root s = 1.96 TeV. A signal of 14 +/- 5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosity of 2.7 fb(-1), collected by the CDF II detector. The mass and natural width of the structure are measured to be 4143.0 +/- 2.9(stat) +/- 1.2(syst) MeV/c(2) and 11.7(-5.0)(+8.3)(stat) +/- 3.7(stat) Mev/c(2).
Physical Review Letters 102 (24): 242002 (2009)
0031-9007
http://hdl.handle.net/10261/22154
10.1103/PhysRevLett.102.242002
Evidence for a Narrow Near-Threshold Structure in the J/psi phi Mass Spectrum in B+ -> J/psi phi K+ Decays