Experimental Observation of a Heavy ParticleJ

1974/12/02 by J.J. Aubert, U. Becker, Peter J. Biggs +11 · 1,620 citations
Physics and Astronomy · #Computer science #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.1103/physrevlett.33.1404

published in Physical Review Letters 33(23), 1404-1406 (American Physical Society)

openalex publication_date 1974/12/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report the observation of a heavy particle J, with mass m=3.1 GeV and width approximately zero. The observation was made from the reaction p+Be\ensuremath→e⁺+e^\ensuremath-+x by measuring the e⁺e^\ensuremath- mass spectrum with a precise pair spectrometer at the Brookhaven National Laboratory's 30-GeV alternating-gradient synchrotron.

Citations

• A Model of Leptons

Cited by

• Measurement of theCP-violating phaseβsJ/ψϕinBs0→J/ψϕdecays with the CDF II detector
• Heavy quarkonium fragmentation functions from a heavy quark pair. I.Swave
• Heavy quarkonium fragmentation functions from a heavy quark pair. II.Pwave
• The hadronic properties of the photon in high-energy interactions
• A new quark model for hadrons
• Prediction of a missing higher charmonium around 4.26 GeV in J/ψ J / ψ family
• Charmed nuclei within a microscopic many-body approach
• Ground State Properties of Charmed Hypernuclei with Mean Field Approach
• A review of the open charm and open bottom systems
• Implications of LHCb measurements and future prospects
• Diffusion Monte Carlo calculations of fully-heavy multiquark bound states
• Leptonic widths of heavy quarkonia:S-wave QCD/NRQCD matching coefficients for the electromagnetic vector annihilation current atO(αsv2)
• Charmonium decays into ΛcΛ¯c pair governed by the hadronic loop mechanism
• The making of the Standard Model
• Observation of ψ(3686) → Ξ^- K⁰_S Ω⁺ +c.c
• Color Deconfinement and Charmonium Production in Nuclear Collisions
• Radiative Transitions for the Ground and Excited Charmonia States
• Top-quark physics: Status and prospects
• How large can the SM contribution to CP violation in D₀ - D₀ mixing be?
• Constructing J/ψ family with updated data of charmoniumlike Y states
• Quarks and leptons beyond the third generation
• Higher charmonia
• Particle physics at accelerators in the United States and Asia
• Near-threshold J/Ψ production in proton–nucleus collisions
• Heavy quarkonium production through the semi-exclusivee+e−annihilation channels round theZ0peak
• Searching for the rules that govern hadron construction
• The Early History of the Quark-Gluon Plasma
• The Constituent Quark Model
• Evidence for the positive-strangeness pentaquark Θ+ in photoproduction with the SAPHIR detector at ELSA
• Meson [wikipedia]