Necessity of experiments to theory of double-β decay -- to improve reliability of calculation of nuclear matrix elements
Jun Terasaki
IEAP, CTU in Prague
Abstract: The neutrinoless double-β decay is a key event for neutrino physics, if found. First, if its half-life is measured, the neutrino effective mass can be determined. Second, that decay means that the neutrino is a Mayorana particle, therefore, it is an evidence of the existence of the right-hand component of the neutrino. This evidence would have a strong impact to theories to explain why the neutrino is so light and how the matter-antimatter asymmetry in the universe occurred. The nuclear matrix element of this decay is a theoretical quantity to express nuclear part of the decay matrix element, and this is one of the input to determine the effective neutrino mass. However, it is known since a few decades ago that the calculated values are distributed in a range of the min-max ratio of 2-3. The researchers involved in this study think whether help is possible by experiments. In this seminar, I will discuss several examples of experimental data to help check or improvement of the calculation.
Seminar takes place on Tuesday, September 27th 2022 at 2:00 PM
in the IEAP meeting room, Praha 1, Husova 240/5.
| Ing. Bartoloměj Biskup, Ph.D. seminar organizer |
doc. Ing. Ivan Štekl, CSc. director of IEAP |
doc. Dr. André Sopczak IEEE CS - NPSS chair |
NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER
IEEE Czechoslovakia section
http://www.ieee.cz/en/nps