André Lagarrigue

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André Lagarrigue

André Lagarrigue (* 1924 in Aurillac , Auvergne ; † January 1975 in Orsay , Île-de-France ) was a French experimental particle physicist.

Lagarrigue studied from 1945 at the École polytechnique . After graduation, he was in Louis Leprince-Ringuet's laboratory, studying cosmic rays. He received his doctorate from Charles Peyrou , where he built a Wilson chamber to study cosmic rays for his dissertation . He was at the University of California, Berkeley , where he did research with William Fretter at Bevatron . In 1955 he returned to France to the Leprince-Ringuet laboratory. He dealt with the construction of bubble chamber detectors first at the Saturne accelerator in the research center of the CEA in Saclay , then from 1961 at CERN . Like Albert Messiah, he was one of the physicists in France who thoroughly modernized physics education at universities. Later he was also head of a commission that reformed physics teaching in high schools (Commission Lagarrigue). In 1964 he became a professor at the newly founded spin-off of the University of Paris in Orsay, which later became the University of Paris-South . From 1969 to 1975 he headed the laboratory for linear accelerators (Laboratoire de l'accélérateur linéaire, LAL). He is one of the initiators of the Gargamelle experiment, a large bubble chamber at CERN that was built at CEA and installed at CERN in 1970. With it, weak neutral currents were discovered in 1973 ( Z boson ). The discovery was in fierce competition with Fermilab (EA1 collaboration, Carlo Rubbia , Lawrence Sulak , AK Mann, D. Cline), but the Gargamelle group published first.

Lagarrigue was a member of several CERN commissions. In 1975 he was the second prize winner of the Prix ​​Ampère of the Académie des Sciences . He died of a heart attack in 1975 after lecturing in Orsay.

The French Physical Society donated the Prix ​​André Lagarrigue in his memory . A hall of the École Polytechnique is named after him.

Web links

Individual evidence

  1. Shown in Peter Galison: How the first neutral current experiments ended, Reviews of Modern Physics, Volume 55, 1983, pp. 477-511
  2. FJ Hasert et al. a., Search for elastic muon neutrino-electron scattering, Phys. Lett., Vol. 46, 1973, pp. 121-124, FJ Hasert et al. a., Observation of neutrino-like interactions without muon or electron in the Gargamelle neutrino experiment, Phys. Lett., Volume 46, 1973, pp. 138-140, also Hasert et al. a., Nucl. Phys. B, Volume 73, 1974, p. 1