Fitch, Val Logsdon

Fitch, Val Logsdon

▪ American physicist
born March 10, 1923, Merriman, Neb., U.S.

      American particle physicist who was corecipient with James Watson Cronin (Cronin, James Watson) of the Nobel Prize for Physics in 1980 for an experiment conducted in 1964 that disproved the long-held theory that particle interaction should be indifferent to the direction of time.

      Fitch's early interest in chemistry shifted to physics in the mid-1940s when, as a member of the U.S. Army, he was sent to Los Alamos, N.M., to work on the Manhattan Project. He graduated from McGill University in Montreal with a bachelor's degree in electrical engineering in 1948 and was awarded a Ph.D. in physics by Columbia University in 1954. He then joined the faculty of Princeton University that year.

      In experiments conducted at the Brookhaven National Laboratory in 1964, Fitch and Cronin showed that the decay of subatomic particles called K mesons could violate the general conservation law for weak interactions known as CP symmetry. This experiment in turn necessitated physicists' abandonment of the long-held principle of time-reversal invariance. The work done by Fitch and Cronin implied that reversing the direction of time would not precisely reverse the course of certain reactions of subatomic particles. (See also CP violation.)

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Universalium. 2010.

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  • Fitch , Val Logsdon — (1923– American physicist Born in Merriman, Nebraska, Fitch was educated at McGill and Columbia universities and obtained his PhD from Columbia in 1954. He then joined the Princeton staff, being appointed professor of physics there in 1960.… …   Scientists

  • Fitch, Val Logsdon — ► (n. 1923) Físico estadounidense. Fue premio Nobel de Física en 1980, compartido con J. W. Cronin, por sus trabajos sobre la disimetría de la materia …   Enciclopedia Universal

  • Val Logsdon Fitch — Pour les articles homonymes, voir Fitch. Val Logsdon Fitch (10 mars 1923 à Merriman, Nebraska, États Unis) est un physicien américain. Il est colauréat avec James Watson Cronin du prix Nobel de physique de 1980[1] …   Wikipédia en Français

  • Val Logsdon Fitch — (n. Merrimen, EE.UU.; 1923) es un físico norteamericano galardonado con el Premio Nobel de Física del año 1980. Biografía Nació el 10 de marzo de 1923 en la ciudad de Merrimen, situada en el estado norteamericano de Nebraska. Estudió ingeniería… …   Wikipedia Español

  • Val Logsdon Fitch — Infobox Scientist box width = name = Val Logsdon Fitch image size = caption = birth date = Birth date and age|1923|3|10 birth place = Merriman, Nebraska death date = death place = residence = citizenship = nationality = ethnicity = fields =… …   Wikipedia

  • Fitch — Val Logsdon …   Scientists

  • Val Fitch — Val Logsdon Fitch Pour les articles homonymes, voir Fitch. Val Logsdon Fitch (10 mars 1923) est un physicien américain prix Nobel de physique en 1980 Fitch naît à Merriman dans le Nebraska. Durant la Seconde Guerre mondiale il travaille sur le… …   Wikipédia en Français

  • Val L. Fitch — Val Logsdon Fitch Pour les articles homonymes, voir Fitch. Val Logsdon Fitch (10 mars 1923) est un physicien américain prix Nobel de physique en 1980 Fitch naît à Merriman dans le Nebraska. Durant la Seconde Guerre mondiale il travaille sur le… …   Wikipédia en Français

  • Physiknobelpreis 1980: James Watson Cronin — Val Logsdon Fitch —   Die amerikanischen Physiker wurden für die Entdeckung von Verletzungen fundamentaler Symmetrieprinzipien beim Zerfall der neutralen Kaonen ausgezeichnet.    Biografien   James Watson Cronin, * Chicago (Illinois) 29. 9. 1931; ab 1965 Professor… …   Universal-Lexikon

  • Fitch — Fitch, John Fitch, Val Logsdon …   Enciclopedia Universal

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