• Featured in Physics
  • Milestone
  • Free to Read

Experimental Observation of a Heavy Particle J

J. J. Aubert, U. Becker, P. J. Biggs, J. Burger, M. Chen, G. Everhart, P. Goldhagen, J. Leong, T. McCorriston, T. G. Rhoades, M. Rohde, Samuel C. C. Ting, Sau Lan Wu, and Y. Y. Lee
Phys. Rev. Lett. 33, 1404 – Published 2 December 1974
Physics logo See Focus story: Landmarks—The Charming Debut of a New Quark
An article within the collection: Letters from the Past - A PRL Retrospective
PDFExport Citation

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+Bee++e+x by measuring the e+e mass spectrum with a precise pair spectrometer at the Brookhaven National Laboratory's 30-GeV alternating-gradient synchrotron.

  • Received 12 November 1974

DOI:https://doi.org/10.1103/PhysRevLett.33.1404

©1974 American Physical Society

Collections

This article appears in the following collection:

Letters from the Past - A PRL Retrospective

2008 marked PRL’s 50th anniversary. As part of the celebrations a collection of milestone Letters was started. The collection contains Letters that have made long-lived contributions to physics, either by announcing significant discoveries, or by initiating new areas of research.

Focus

Key Image

Landmarks—The Charming Debut of a New Quark

Published 26 February 2016

An unexpected particle discovery in 1974 was the first evidence for a fourth type of quark.

See more in Physics

Authors & Affiliations

J. J. Aubert, U. Becker, P. J. Biggs, J. Burger, M. Chen, G. Everhart, P. Goldhagen, J. Leong, T. McCorriston, T. G. Rhoades, M. Rohde, Samuel C. C. Ting, and Sau Lan Wu

  • Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Y. Y. Lee

  • Brookhaven National Laboratory, Upton, New York 11973

Comments & Replies

Comment on Nonleptonic Decays of Charmed Hadrons

A. Pais and V. Rittenberg
Phys. Rev. Lett. 34, 707 (1975)

Comment on Radiative Corrections to e+eψ(3105)

D. R. Yennie
Phys. Rev. Lett. 34, 239 (1975)

Color Gluons and the Decay of the ψ(3700) into ψ(3100)

H. Goldberg
Phys. Rev. Lett. 35, 605 (1975)

References

Click to Expand
Issue

Vol. 33, Iss. 23 — 2 December 1974

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×