NEUTRINO INTERACTIONS WITH ATOMS AND DOUBLE-BETA DECAY
NEUTRINO INTERACTIONS WITH ATOMS AND DOUBLE-BETA DECAY
Type of document
disertační prácedoctoral thesis
Author
Andrej Babič
Supervisor
Krivoručenko Michail Ivanovič
Opponent
Malinský Michal
Field of study
Jaderné inženýrstvíStudy program
Aplikace přírodních vědInstitutions assigning rank
katedra dozimetrie a aplikace ionizujícího zářeníDefended
2023-02-20Rights
A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.htmlVysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.html
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The Doctoral Thesis is focused on four different topics in the field of neutrino physics and double-beta decay. First, we calculate the total cross section for inelastic scattering of low-energy neutrinos by atomic electrons for the neutrino detectors Borexino and GEMMA. Then, we study neutrinoless and two-neutrino bound-state double-beta decay with emission of a single electron by means of the GRASP2K package for the double-beta-decay experiments NEMO-3 and SuperNEMO, as well as CUORE, EXO-200, and GERDA. Next, we investigate the left-right symmetric extension of the Standard Model and employ the interpolating formula for nuclear matrix elements to identify the regions of dominance of the light vs. heavy Majorana-neutrino exchange mechanism of neutrinoless double-beta decay in the neutrino parameter space based on the experiment KamLAND-Zen. Finally, we propose the so-caled quark-condensate seesaw mechanism for generation of Majorana neutrino mass and predict the normal hierarchy for the spectrum of neutrino masses from the present experimental limits on the half-lives of neutrinoless double-beta decay. The Doctoral Thesis is focused on four different topics in the field of neutrino physics and double-beta decay. First, we calculate the total cross section for inelastic scattering of low-energy neutrinos by atomic electrons for the neutrino detectors Borexino and GEMMA. Then, we study neutrinoless and two-neutrino bound-state double-beta decay with emission of a single electron by means of the GRASP2K package for the double-beta-decay experiments NEMO-3 and SuperNEMO, as well as CUORE, EXO-200, and GERDA. Next, we investigate the left-right symmetric extension of the Standard Model and employ the interpolating formula for nuclear matrix elements to identify the regions of dominance of the light vs. heavy Majorana-neutrino exchange mechanism of neutrinoless double-beta decay in the neutrino parameter space based on the experiment KamLAND-Zen. Finally, we propose the so-caled quark-condensate seesaw mechanism for generation of Majorana neutrino mass and predict the normal hierarchy for the spectrum of neutrino masses from the present experimental limits on the half-lives of neutrinoless double-beta decay.
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