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347:: "Today the interpretation of many experiments in high-energy physics requires multiloop quantum chromodynamics calculations, and Bill's result is a prime ingredient in every such calculation. It is also a critical ingredient in calculating the running of the coupling constants of the Standard Model's supersymmetric extensions, calculations that are interpreted these days as evidence for both grand unification and low-energy supersymmetry. Thus Bill's work is also crucial to our thinking about physics beyond the Standard Model."
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and paper output, Caswell felt that pure hand calculation was excruciating to perform and impractical to check. Looking into the then-uncharted world of machine symbolic calculation, he adapted Tony Hearn's REDUCE program in order to graph out calculations. Today his work is utilized in the multiloop
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Caswell was an assistant professor at Brown
University from 1977 to 1979, and an assistant professor at the University of Maryland from 1979 to 1983. In 1983, Caswell left academic work for a position as a civilian scientist in the
364:, this effort "required unusual courage and determination, since the calculation simultaneously features all the notorious subtleties of gauge invariance, overlapping divergences, and renormalization."
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and renormalization group ideas, in which he himself made several pioneering contributions, the highpoint of which was his 1972 calculation of the beta function to two-loop accuracy. According to
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properties. His thesis, published in 1974, was groundbreaking work that encouraged and shaped future research. To quote his obituary in
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did significant work in 1978 to develop new and powerful tools for dealing with bound states such as
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in three years with a degree in physics in 1968. He then attended graduate school for physics at
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quantum chromodynamics calculations that are used in high-energy physics experiments.
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235:(June 22, 1947 – September 11, 2001) was an American physicist. He did work in
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His parents were involved in the design of a memorial to 9/11 victims in
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570:"Asymptotic Behavior of Non-Abelian Gauge Theories to Two-Loop Order"
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Asymptotic
Behavior of Non-Abelian Gauge Theories to Two-Loop Order
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295:. His work at Princeton was delayed when he was drafted into the
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271:, the eldest of six children. He lived most of his life in
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21:"William Caswell" redirects here. For other uses, see
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William Edward
Caswell was born on June 22, 1947, in
535:Callan, Curtis G.; Wilczek, Frank (December 2001).
423:Caswell, on a business trip in Los Angeles, was on
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609:"Memorial park honors victims of 9-11 terrorism"
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243:and punch cards demonstrated the potential of
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688:Casualties of the September 11 attacks
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568:Caswell, William E. (July 22, 1974).
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1043:American Airlines Flight 77 victims
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607:Malin, Marny (September 8, 2003).
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480:"Biographies: William E. Caswell"
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1033:20th-century American physicists
23:William Caswell (disambiguation)
493:. Retrieved September 11, 2013.
491:National 9/11 Pentagon Memorial
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432:National September 11 Memorial
417:National September 11 Memorial
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18:American physicist (1947–2001)
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1083:United States Navy civilians
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393:Naval Surface Weapons Center
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263:Personal life and background
188:Naval Surface Weapons Center
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1078:United States Army soldiers
1058:Princeton University alumni
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908:United Airlines Flight 175
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594:10.1103/PhysRevLett.33.244
367:In the age of punchcards,
313:elementary particle theory
247:. Caswell died during the
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339:in order to calculate
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505:"William E. Caswell"
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764:Abraham Zelmanowitz
613:Frederick News-Post
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510:The Washington Post
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397:White Oak, Maryland
341:elementary particle
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92:Arlington, Virginia
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461:William E. Caswell
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168:Physics
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