Lev Nikolayevich Lipatov

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Lev Nikolajewitsch Lipatow ( Russian Лев Николаевич Липатов , scientific transliteration Lev Nikolaevič Lipatov ; born May 2, 1940 in Leningrad ; † September 4,  2017  in  Dubna ) was a Russian theoretical physicist .

Lipatow was a student and close collaborator of Vladimir Naumowitsch Gribow in Saint Petersburg . He was director of the theory department of the Institute for Nuclear Physics in Saint Petersburg (PNPI in the Gatchina district ). He was u. a. on guest stays at DESY .

Lipatow was known for the evolution equations of structure functions in perturbation-theoretical quantum chromodynamics (QCD) named after him, Dokshitzer , Gribow, Altarelli and Parisi ( DGLAP equations ). B. in processes of deep inelastic scattering or in pair annihilation. He developed the DGLAP equations together with Gribow around 1972. He was also involved in the development of the BFKL equation (with Victor Fadin , EA Kuraev, Ya. Ya. Balitskii).

Lipatow also dealt with the behavior of the perturbation series for high orders in model quantum field theories such as scalar fields with quartic self-interaction ( theories), in which he showed the important role of instantons from the semiclassical approximation.

In 2001 he received the Pomeranchuk Prize and in 2015 the High Energy and Particle Physics Prize . He became a corresponding member of the Russian Academy of Sciences in 1997 and has been a full member since 2011.

Web links

Individual evidence

  1. Biography ( Russian ), accessed September 6, 2017
  2. Gribov, Lipatov Deep inelastic ep scattering in perturbation theory , Soviet Journal Nuclear Physics, Vol. 15, 1972, p. 438; Gribov, Lipatov e + e-pair annihilation and deep inelastic ep scattering in perturbation theory , Soviet Journal Nuclear Physics, Vol. 15, 1972, p. 675; Lipatov The parton model and perturbation theory , Soviet Journal Nuclear Physics, Vol. 20, 1975, p. 94.
  3. Lipatov Divergence of the perturbation theory series and the quasiclassical theory , Soviet physics JETP, Vol. 45, 1977, p. 216, Lipatov Divergence of the perturbation series and pseudoparticles , JETP Letters, Vol. 25, 1977, p. 104