Hans Heinrich Euler
Encyclopedia
Hans Heinrich Euler was a German physicist. He received his PhD in 1935 at the University of Leipzig
under Werner Heisenberg
with a thesis Über die Streuung von Licht an Licht nach der Diracschen Theorie (On the scattering of light by light based on Dirac's theory).
Euler was the first physicist who was able to show that Paul Dirac
's introduction of the positron opens the possibility that photons in electron-positron pair production scatter with each other and calculated in his PhD thesis, the cross section for this process.
Based on the observations of Helmuth Kulenkampff
, Euler and Heisenberg were able to calculate an improved figure for meson
decay time.
Euler died in a reconnaissance flight over the Sea of Azov
, during World War II
. He had joined the Luftwaffe
a few months earlier.
University of Leipzig
The University of Leipzig , located in Leipzig in the Free State of Saxony, Germany, is one of the oldest universities in the world and the second-oldest university in Germany...
under Werner Heisenberg
Werner Heisenberg
Werner Karl Heisenberg was a German theoretical physicist who made foundational contributions to quantum mechanics and is best known for asserting the uncertainty principle of quantum theory...
with a thesis Über die Streuung von Licht an Licht nach der Diracschen Theorie (On the scattering of light by light based on Dirac's theory).
Euler was the first physicist who was able to show that Paul Dirac
Paul Dirac
Paul Adrien Maurice Dirac, OM, FRS was an English theoretical physicist who made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics...
's introduction of the positron opens the possibility that photons in electron-positron pair production scatter with each other and calculated in his PhD thesis, the cross section for this process.
Based on the observations of Helmuth Kulenkampff
Helmuth Kulenkampff
Helmuth Kulenkampff was a physicist notable for his studies of X-rays. He obtained his PhD in 1922 under Ernst Wagner at the University of Munich with a thesis entitled: Über das Kontinuierliche Röntgenspektrum ....
, Euler and Heisenberg were able to calculate an improved figure for meson
Meson
In particle physics, mesons are subatomic particles composed of one quark and one antiquark, bound together by the strong interaction. Because mesons are composed of sub-particles, they have a physical size, with a radius roughly one femtometer: 10−15 m, which is about the size of a proton...
decay time.
Euler died in a reconnaissance flight over the Sea of Azov
Sea of Azov
The Sea of Azov , known in Classical Antiquity as Lake Maeotis, is a sea on the south of Eastern Europe. It is linked by the narrow Strait of Kerch to the Black Sea to the south and is bounded on the north by Ukraine mainland, on the east by Russia, and on the west by the Ukraine's Crimean...
, during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
. He had joined the Luftwaffe
Luftwaffe
Luftwaffe is a generic German term for an air force. It is also the official name for two of the four historic German air forces, the Wehrmacht air arm founded in 1935 and disbanded in 1946; and the current Bundeswehr air arm founded in 1956....
a few months earlier.
Publications by Hans Euler
- Hans Euler, "Über die Streuung von Licht an Licht nach der Diracschen Theorie," Annalen der PhysikAnnalen der PhysikAnnalen der Physik is one of the oldest physics journals worldwide. The journal publishes original, peer-reviewed papers in the areas of experimental, theoretical, applied and mathematical physics and related areas...
, Vol. 418, 1936, pp. 398–448. - Hans Euler and Bernhard Kockel, "Über die Streuung von Licht an Licht nach der Diracschen Theorie," Naturwissenschaften, Vol. 23, 1935, p. 246