Jochem Fleischer

from Wikipedia, the free encyclopedia
Jochem Fleischer

Jochem Burkhard Fleischer (born December 17, 1937 in Berlin-Charlottenburg ; † April 1, 2013 in Berlin ) was a German physicist and professor in Bielefeld . At first he worked on core theoretical topics and later mainly in the areas of theoretical elementary particle physics and quantum field theory .

Origin and life

Jochem Fleischer's father was the economist Adolf Martin Karl Fleischer. The father was the director of a gold beating in Berlin-Charlottenburg, where Jochem Fleischer was born. He grew up in Bremen , where he also passed his Abitur.

Study and training

Fleischer studied physics at the University of Saarland , where he in 1967 with the theme "On the scattering of relativistic electrons in the Coulomb" doctorate .

Activity as a scientist

Fleischer was March 15, 1967 to March 31, 1969 post-doctoral researcher at the German Electron Synchrotron (DESY) in Hamburg, from 1 April 1969 to 30 September 1971 at the University of Karlsruhe and then with a one-year DAAD scholarship at the Los Alamos National Laboratory in the USA, before joining the Faculty of Physics at Bielefeld University in 1973 with a habilitation grant from the German Research Foundation . After completing his habilitation , he was a lecturer in Bielefeld and was appointed professor there in 1981. He developed computer algebraic methods for his calculations . After his retirement in 2003, Jochem Fleischer continued his research at DESY Zeuthen near Berlin.

Jochem Fleischer was a specialist in the calculation of complicated Feynman diagrams , which are an integral component in the perturbation-theoretical calculation of decay widths and scattering cross-sections at particle accelerators. Fleischer's list of publications contains over 100 entries.

The research focused particularly on the following areas:

  • Computation of higher order loop corrections for selected observables in the standard model of elementary particle physics
  • Development of new analytical methods and tensor reduction techniques for n-point single-loop integrals as well as for 2- and 3-point two-loop integrals with any kinematics
  • Formulation and applications of the Mellin-Barnes approach to Feynman integrals

Web links

Individual evidence

  1. ↑ a b Scientific Publications Professor Dr. Burkhard Jochem Fleischer. (PDF) hugo-riemann.de, accessed on January 22, 2020 (English).
  2. ^ Saarland University, Faculty of Mathematics and Natural Sciences, dissertation from June 30, 1966 ; Website accessed on January 22, 2020
  3. ↑ https://inspirehep.net/search?ln=en&p=f+a+j.fleischer.1&of=hb&action_search=Search&sf=earliestdate&so=d ; Website accessed on January 22, 2020
  4. ↑ https://inspirehep.net/search?ln=en&ln=en&p=f+a+j.fleischer.1&of=hcs&action_search=Search&sf=earliestdate&so=d&rm=&rg=25&sc=0 ; Website accessed on January 22, 2020
personal data
SURNAME Fleischer, Jochem
ALTERNATIVE NAMES Fleischer, Jochem Burkhard (full name)
BRIEF DESCRIPTION German physicist and university professor
DATE OF BIRTH December 17, 1937
PLACE OF BIRTH Berlin-Charlottenburg
DATE OF DEATH April 1, 2013
Place of death Berlin