23-28 June 2019
Collegium Maius
Europe/Warsaw timezone

On the neutron decay

25 Jun 2019, 10:40
20m
Collegium Maius

Collegium Maius

Jagiellońska 15 Street, Kraków
talk Tuesday

Speaker

Francesco Giacosa (Institute of Physics, Kielce University)

Description

We present the puzzle of the neutron lifetime, according to which different measurements (bottle and beam methods) deliver different lifetimes. In particular, the bottle method delivers a lifetime which is 8 s shorter than the beam method. At present, the mismatch is at the 4 sigma level. If the mismatch is not due to (yet undiscovered) systematic errors, one should search for theoretical explanations. We then discuss which theoretical solutions have been proposed in the literature and propose a novel one based on the effect of quantum measurements on the lifetime of quantum systems.

Primary authors

Francesco Giacosa (Institute of Physics, Kielce University) Prof. Giuseppe Pagliara (University and INFN of Ferrara)

Presentation Materials