Hans Klapdor small house

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Hans Volker Klapdor-Kleingrothaus (also H. V. Klapdor), (born January 25, 1942 in Reinbek ) is a German physicist who deals with nuclear physics , particle physics and astrophysics .

Life

After graduating from high school in 1960 at the Johanneum , Klapdor-Kleingrothaus studied physics at the University of Hamburg (1966 diploma in experimental nuclear physics with Hugo Neuert ) and received his doctorate there in 1969 with a thesis on gamma-ray spectroscopy at a particle accelerator. From 1969 (until 2007) he was at the Max Planck Institute for Nuclear Physics in Heidelberg, where he initially dealt with heavy ion reactions. He completed his habilitation in Hamburg in 1971 and in Heidelberg in 1973. Since 1980 he has been a professor at Heidelberg University .

Klapdor-Kleingrothaus deals with, among other things, nuclear astrophysics and the weak interaction in nuclear physics ( double beta decay ). Since 1987 he has led the Heidelberg-Moscow experiment , which was carried out from 1990 to 2003 in the Laboratori Nazionali del Gran Sasso near Rome.

He also led the HDMS experiment (Heidelberg Dark Matter Search) to search for dark matter in the Gran Sasso Laboratory from 1999. He was spokesman for the GENIUS experiment for the search for dark matter and neutrino-free double beta decay since 1997. A prototype experiment this was carried out from 2003 to 2006 in the Gran Sasso.

In 2001 his group claimed to have observed the first indications of neutrino-free double beta decay in the Heidelberg-Moscow experiment. The full data gave a significance of 6.4 standard deviations . They show a partial half-life of the isotope germanium -76 for this decay of more than 10 25 years. However, such a decay could not be observed in the follow-up GERDA experiment with improved sensitivity.

In 1982 Klapdor-Kleingrothaus received together with Wolfgang Hillebrandt the Physics Prize of the German Physical Society for "his work on the crucial importance of the structures in the beta strength function for the synthesis of the heavy elements in the cosmos". In 1994 he became a member of the New York Academy of Sciences . In 1998 and 2005 he received a physics award from the JINR in Dubna , Russia - in 1998 for his work on Physics Beyond Standard Model in rare Energy Processes and in Cosmology and in 2005 for his work on Looking for SUSY Dark Matter . He has written around 360 scientific publications and 30 books.

Books (selection)

  • Editor: Weak and electromagnetic interactions in nuclei . Springer, Heidelberg 1986
  • Editor: Neutrinos, Graduate Texts in Contemporary Physics . Springer, Heidelberg 1988
  • with K. Grotz: The weak interaction in nuclear, particle and astrophysics . Teubner, Stuttgart 1989 (English edition IOP, Bristol 1990; Russian edition MIR, Moscow 1992; Chinese edition Shandong, Jinan 1998)
  • with A. Staudt: Particle physics without accelerators . Teubner, Stuttgart 1995 (English translation Non Accelerator Particle Physics , IOP, Bristol 1995, 2nd edition 1998; Russian edition Nauka, Moscow 1997)
  • Editor with S. Stoica: Double Beta Decay and related topics . World Scientific, Singapore 1996
  • with Kai Zuber: Particle Astrophysics . Teubner, Stuttgart 1997 (English Particle Astrophysics IOP, Bristol 1997, 2nd edition 1999; Russian edition, Uspechi Fisicheskich Nauk, Moscow 2000)
  • Sixty years of double beta decay . World Scientific, Singapore 2001
  • Seventy years of double beta decay - From Nuclear Physics to Physics beyond the Standard Model . World Scientific, Singapore 2010, 1520 pages

Web links

Individual evidence

  1. ↑ Klapdor-Kleingrothaus, Dietz, Harney, Krivosheina: Evidence for neutrinoless double beta decay . In: Modern Physics Letters , A 16, 2001, pp. 2409–2420 ( abstract )
  2. ↑ Klapdor-Kleingrothaus, Krivosheina et al. In: Nuclear Instruments and Methods . A 522, 2004, pp. 371-406, klapdor-k.de (PDF)
  3. ↑ Klapdor-Kleingrothaus et al. In: Physics Letters , B 586, 2004, pp. 198-212, klapdor-k.de (PDF)
  4. ↑ Klapdor-Kleingrothaus, Krivosheina. In: Modern Physics Letters , A 21, 2006, pp. 1547-1566, klapdor-k.de (PDF)
  5. ↑ GERDA collaboration, M. Agostini et al .: Background-free search for neutrinoless double-β decay of 76Ge with GERDA . In: Nature . tape 544 , April 5, 2017, p. 47 , doi : 10.1038 / nature21717 , arxiv : 1703.00570 .
  6. ↑ Gustav Hertz laureate after years . German Physical Society
  7. ↑ List of winners 1998 (PDF) JINR (English)
  8. ↑ List of winners 2005 (PDF) JINR (English)
personal data
SURNAME Klapdor-Kleingrothaus, Hans
ALTERNATIVE NAMES Klapdor, Hans; Klapdor-Kleingrothaus, Hans V .; Klapdor-Kleingrothaus, Hans Volker (full name)
BRIEF DESCRIPTION German physicist
DATE OF BIRTH January 25, 1942
PLACE OF BIRTH Reinbek