Culture

Culture · Biography

1931–2018

Burton Richter

Burton Richter helped build electron–positron colliders and led the SPEAR experiment that independently revealed the psi resonance in 1974.

United States Brooklyn, NY, USA Updated 8 November 2026
Photo pending permission
In this biography

Quick facts

Born
22 March 1931
Died
18 July 2018
Birthplace
Brooklyn, NY, USA
Nationality
Not independently established
Known for
Developing SPEAR and co-discovering the J/psi resonance

Why this life matters

Developing SPEAR and co-discovering the J/psi resonance

Timeline

Key moments

  1. Birth

    Burton Richter was born in Brooklyn, NY, USA.

  2. Psi resonance discovery

    Coauthored the narrow-resonance report from the SPEAR collision-energy scan.

  3. Nobel recognition

    Received Nobel recognition for the work described in the official award record.

Training through apparatus and accelerators

Burton Richter was born in New York in 1931 and entered MIT in 1948. Francis Bitter introduced him to experimental research, while Martin Deutsch’s positronium work helped develop his interest in electron–positron systems. Graduate research brought him into accelerator operations as well as detector construction. Richter completed his doctorate in 1956 under L. S. Osborne, studying pion photoproduction. His autobiography makes the hands-on training important: students helped maintain the machine rather than treating an accelerator as an invisible source of ready-made data.

Sources for this section: [4] · [3]

Building a collision programme

At Stanford, Richter investigated electromagnetic processes and joined work with Gerard O’Neill, William Barber and Bernard Gittelman on colliding beams. In 1963 Wolfgang Panofsky invited him to SLAC, where he developed plans for a higher-energy electron–positron facility. Funding for SPEAR finally arrived in 1970, and experiments began in 1973. The interval between concept, funding and operation is part of the scientific achievement. The storage ring and its detector created a programme able to scan energies and investigate unexpected production patterns.

Sources for this section: [4] · [2]

A resonance found by scanning energy

In 1974 the SLAC–LBL collaboration reported a narrow resonance in electron–positron annihilation. The experiment varied collision energy and observed a sharply enhanced production rate. The group called the particle psi. Independently, Samuel Ting’s Brookhaven collaboration observed a narrow electron–positron mass resonance and named it J. These were different experimental routes to the particle now called J/psi. Richter and Ting shared the 1976 Nobel Prize in Physics for the discovery, which transformed the investigation of heavy-particle spectroscopy.

Sources for this section: [1] · [3]

Research leadership beyond one discovery

Richter later became SLAC’s technical director and served as laboratory director from 1984 to 1999. His autobiography discusses the change from obtaining support for his own experiments to enabling a wider research community. He died in 2018. His career joins accelerator development, experimental discovery and institutional leadership. The resonance paper is a landmark, but its context includes the patient work needed to build a stable collision facility and interpret energy-dependent event rates. Those foundations explain why a narrow unexpected feature could be investigated rather than simply noticed.

Sources for this section: [4] · [3] · [2]

Quick answers

Frequently asked questions about Burton Richter

What was SPEAR?
An electron–positron storage-ring facility that enabled energy-dependent production measurements.
Why does the particle have two names?
Richter’s collaboration used psi and Ting’s independent collaboration used J.

Keep exploring

Lives connected to this story

  • Richard Feynman

    Compare an experimental collision programme with theoretical accounts of particle interactions.

  • Samuel Ting

    Compare the independent Brookhaven pair-mass observation.

Sources and further reading

Explore the evidence

These references support the biography and offer further reading. Official records, first-person accounts and independent reporting provide different perspectives; image records document attribution and licensing.

  1. 1. Augustin and colleagues, Physical Review Letters, 1974Discovery of a Narrow Resonance in e+e− Annihilation
  2. 2. Nobel Prize OutreachBurton Richter — Nobel lecture
  3. 3. Nobel Prize OutreachBurton Richter — Facts
  4. 4. Nobel Prize OutreachBurton Richter — Biographical
Back to top ↑