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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23798
Title: 
Observation and properties of the X(3872) decaying to J/psi pi(+)pi(-) in p(p)over-bar collisions at root s=1.96 TeV
Author(s): 
Institution: 
  • Joint Inst Nucl Res
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Simon Fraser Univ
  • Inst High Energy Phys
  • Universidad de los Andes
  • Charles Univ
  • Czech Tech Univ
  • Acad Sci Czech Republ
  • Univ San Francisco Quito
  • Univ Grenoble 1
  • Univ Mediterranee
  • Lab Accelerateur Lineaire
  • Univ Paris 06
  • Univ Paris 07
  • CEA
  • Univ Strasbourg 1
  • Univ Haute Alsace
  • Univ Lyon 1
  • RWTH Aachen University
  • Univ Bonn
  • Univ Freiburg
  • Univ Mainz
  • Univ Munich
  • Univ Wuppertal
  • Panjab Univ
  • Tata Inst Fundamental Res
  • Univ Coll Dublin
  • Korea University
  • CINVESTAV
  • FOM Inst NIKHEF
  • Univ Amsterdam
  • Univ Nijmegen
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • Petersburg Nucl Phys Inst
  • Lund Univ
  • Royal Inst Technol
  • Stockholm Univ
  • Uppsala Univ
  • University of Lancaster
  • Univ London Imperial Coll Sci Technol & Med
  • University of Manchester
  • University of Arizona
  • Univ Calif Berkeley
  • Calif State Univ Fresno
  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
  • Univ Illinois
  • No Illinois Univ
  • Northwestern University (NU)
  • Indiana University
  • Univ Notre Dame
  • Iowa State Univ
  • University of Kansas (KU)
  • Kansas State University
  • Louisiana Tech University
  • University of Maryland
  • Boston University
  • Northeastern University
  • University of Michigan
  • Michigan State University
  • University of Mississippi
  • Univ Nebraska
  • Princeton University
  • Columbia University
  • University of Rochester
  • SUNY Stony Brook
  • Brookhaven Natl Lab
  • Langston Univ
  • University of Oklahoma
  • Brown University
  • Univ Texas
  • Rice University
  • University of Virginia (UVA)
  • University of Washington
ISSN: 
0031-9007
Abstract: 
We report the observation of the X(3872) in the J/psipi(+)pi(-) channel, with J/psi decaying to mu(+)mu(-), in p (p) over bar collisions at roots=1.96 TeV. Using approximately 230 pb(-1) of data collected with the Run II D0 detector, we observe 522+/-100 X(3872) candidates. The mass difference between the X(3872) state and the J/psi is measured to be 774.9+/-3.1(stat)+/-3.0(syst) MeV/c(2). We have investigated the production and decay characteristics of the X(3872) and find them to be similar to those of the psi(2S) state.
Issue Date: 
15-Oct-2004
Citation: 
Physical Review Letters. College Pk: American Physical Soc, v. 93, n. 16, 6 p., 2004.
Time Duration: 
6
Publisher: 
American Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.93.162002
URI: 
http://hdl.handle.net/11449/23798
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/23798
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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