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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
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Number of Authors: 583
2004 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 93, no 16, 162002- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2004. Vol. 93, no 16, 162002- p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-40396DOI: 10.1103/PhysRevLett.93.162002ISI: 000224533300025Scopus ID: 2-s2.0-80051545276OAI: oai:DiVA.org:kth-40396DiVA: diva2:441016
Note
QC 20110914. Author count: 583Available from: 2011-09-14 Created: 2011-09-14 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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