Interpolating formula for the 0 nu beta beta-decay half-life in the case of light and heavy neutrino mass mechanisms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00325920" target="_blank" >RIV/68407700:21340/18:00325920 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21670/18:00325920

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevD.98.015003" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.98.015003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.98.015003" target="_blank" >10.1103/PhysRevD.98.015003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interpolating formula for the 0 nu beta beta-decay half-life in the case of light and heavy neutrino mass mechanisms

Popis výsledku v původním jazyce

We revisit the "interpolating formula" proposed in our previous publication. It allows one to calculate the 0 nu beta beta-decay half-life for arbitrary neutrino mass without the involvement of the complicated results for nuclear matrix elements (NMEs) obtained within specific nuclear structure models. The formula derives from the finding that the value of a properly normalized ratio of the NMEs for the light and heavy neutrino mass mechanisms weakly depends on the isotope. From this fact, it follows, in particular, that the light and heavy neutrino mass mechanisms can hardly be distinguished in a model-independent way searching for 0 nu beta beta decay of different nuclei. Here, we show that this formula holds for all the known nuclear structure approaches. We give a mathematical justification of our results examining analytical properties of the NMEs. We also consider several simplified benchmark scenarios within left-right symmetric models and analyze the conditions for the dominance of the light or heavy neutrino mass mechanisms in 0 nu beta beta decay.

Název v anglickém jazyce

Interpolating formula for the 0 nu beta beta-decay half-life in the case of light and heavy neutrino mass mechanisms

Popis výsledku anglicky

We revisit the "interpolating formula" proposed in our previous publication. It allows one to calculate the 0 nu beta beta-decay half-life for arbitrary neutrino mass without the involvement of the complicated results for nuclear matrix elements (NMEs) obtained within specific nuclear structure models. The formula derives from the finding that the value of a properly normalized ratio of the NMEs for the light and heavy neutrino mass mechanisms weakly depends on the isotope. From this fact, it follows, in particular, that the light and heavy neutrino mass mechanisms can hardly be distinguished in a model-independent way searching for 0 nu beta beta decay of different nuclei. Here, we show that this formula holds for all the known nuclear structure approaches. We give a mathematical justification of our results examining analytical properties of the NMEs. We also consider several simplified benchmark scenarios within left-right symmetric models and analyze the conditions for the dominance of the light or heavy neutrino mass mechanisms in 0 nu beta beta decay.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/EF16_013%2F0001733" target="_blank" >EF16_013/0001733: Podzemní laboratoř LSM - česká účast ve výzkumné infrastruktuře evropského významu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

98

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

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Kód UT WoS článku

000437112700005

EID výsledku v databázi Scopus

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