Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV

2004/05/31 by D0 Collaboration, B. Abbott, V. M. Abazov +98 · 26 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevlett.93.162002

published as Phys.Rev.Lett.93:162002,2004 · 7 pages, 3 figures, LaTeX, version as accepted by Physical Review Letters

arxiv created 2004/09/03 · openalex publication_date 2004/10/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We report the observation of the X(3872) in the J/\ensuremathψ\ensuremathπ⁺\ensuremathπ^\ensuremath- channel, with J/\ensuremathψ decaying to \ensuremathμ⁺\ensuremathμ^\ensuremath-, in pp collisions at √(s)=1.96 TeV. Using approximately 230 pb^\ensuremath-1 of data collected with the Run II D0 detector, we observe 522\ifmmode±\else\textpm\fi100 X(3872) candidates. The mass difference between the X(3872) state and the J/\ensuremathψ is measured to be 774.9\ifmmode±\else\textpm\fi3.1(stat)\ifmmode±\else\textpm\fi3.0(syst) MeV/c². We have investigated the production and decay characteristics of the X(3872) and find them to be similar to those of the \ensuremathψ(2S) state.

Citations

• The D threshold resonance
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Search for a charged partner of theX(3872)in theBmeson decayB→X−K,X−→J/ψπ−π0
• Heavy-quark QCD exotica
• Bound state problem ofS-wave heavy quark meson-antimeson systems
• Estimate for theX(3872)→γJ/ψdecay width
• f(2010) in lattice QCD
• Understanding the newly observed Y(4008) by Belle
• The Exotic XYZ Charmonium-Like Mesons
• Charmonium spectrum and new observed states
• B PHYSICS AT THE DØ EXPERIMENT AT FERMILAB
• THE X(3872) MESON AND "EXOTIC" SPECTROSCOPY AT CDF II — OR NOT? —
• Quarkonia and their transitions
• Operator product expansion in the production and decay of theX(3872)
• Search for theZ(4430)−atBABAR
• A NEW EXPERIMENT TO STUDY HYPERON CP VIOLATION AND THE CHARMONIUM SYSTEM
• Reconciling theX(3872)with the near-threshold enhancement in theD0D¯*0final state
• Central exclusive quarkonium production with tagged forward protons at RHIC
• Qq Qq′ States in Chiral SU(3) Quark Model
• Radiative E1 decays of X(3872)
• Precision Measurement of theX(3872)Mass inJ/ψπ+π−Decays
• More loosely bound hadron molecules at CDF?
• NEW HADRON STATES
• Studying the scalar bound states ofKK¯system in Bethe-Salpeter formalism
• Production of theX(3872)at the Tevatron and the LHC
• X(3872) DIAGNOSTICS WITH DECAYS TO D Dγ
• Four-quark mesons in nonleptonicBdecays: Could they resolve some old puzzles?
• Molecular structures in the charmonium spectrum: theXYZpuzzle