MEDEX'19

Session

Session (Chair: M. Hirsch)

May 30, 2019, 9:00 AM

Balling Hall (ground floor) (The Czech National Library of Technology)

70. Particle Physics of Non-Standard Neutrinoless Double Beta Decay

Dr Lukas Graf (Max Planck Institute for Nuclear Physics)

5/30/19, 9:00 AM

Oral Presentation

The talk will focus on the effective description of exotic neutrinoless double beta decay and the implications of its hypothetical observation. Particular attention will be paid to the short-range mechanisms, which, being represented at low energies by 9-dimensional effective operators, implicitly assume the existence of some underlying new heavy degrees of freedom. The microscopic description...

71. Low-scale seesaw from neutrino condensation

Dr Adam Smetana (IEAP CTU in Prague)

5/30/19, 9:30 AM

Oral Presentation

Knowledge of the mechanism of neutrino mass generation would help understand a lot more about Lepton Number Violation (LNV), the cosmological evolution of the Universe, or the evolu tion of astronomical objects. Here we propose a verifiable and viable extension of the Standard model for neutrino mass generation, with a low-scale seesaw mechanism via LNV condensation in the sector of sterile...

51. GERDA searches for 0νββ and other ββ decay modes of 76Ge

Dr Anatoly Smolnikov (MPIK Heidelberg), Prof. Kai Zuber (TU Dresden)

5/30/19, 10:00 AM

Oral Presentation

The GERDA collaboration searches for the 0νββ decay of 76Ge by operating bare germanium detectors in an active liquid argon shield. GERDA is the first experiment that surpasses a sensitivity for the 0νββ decay half-life of T1/2 > 10^26 yr (90% C.L.) and that operates in a background-free regime such that the expected number of background events is less than 1 in the energy region of interest...