Double-beta decay of 150Nd to excited levels of 150Sm
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00382089" target="_blank" >RIV/68407700:21670/25:00382089 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-025-13901-y" target="_blank" >https://doi.org/10.1140/epjc/s10052-025-13901-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-025-13901-y" target="_blank" >10.1140/epjc/s10052-025-13901-y</a>
Alternative languages
Result language
angličtina
Original language name
Double-beta decay of 150Nd to excited levels of 150Sm
Original language description
he 2 nu 2 beta decay of Nd-150 to the first excited 740.5 keV 0(1 )(+)level of Sm-150 was measured over 5.845 years with the help of a four-crystal low-background HPGe gamma spec-trometry system in the underground low-background laboratory STELLA of LNGS-INFN. A 2.381 kg highly purified Nd-containing sample was employed as the decay source. The expected de-excitation gamma-quanta of the 0(1)(+)levelwith energies 334.0 keV and 406.5 keV were observed both in one-dimensional spectrum and in coincidence data resulting in the half-life T-1/2=[0.83(-0.13)(+0.18)(stat)(+0.16)(-0.19)(syst)]x10(20 )year. Interpreting an excess of the 334.0-keV peak area as an indication of the 2 beta decay of Nd-150 to the 334.0 keV 2(1)(+)excited level of Sm-150 with a half-life of T-1/2=[1.5(-0.6)(+2.3)(stat)+/- 0.4(syst)]x10(20 ) year, the 2 nu 2 beta half-life of Nd-150 for the transition to the 0(1 )(+)level is T-1/2=[1.03+0.35-0.22(stat)+0.16-0.19(syst)]x10(20 )year, in agreement with the previous experiments. Both half-life values reasonably agree with the theoretical calculations in the framework of proton-neutron QRPA with isospin restoration combined with like nucleon QRPA for description of excited states in the final nuclei. For 2 nu 2 beta and 0 nu 2 beta transitions of Nd-150 and 148Nd to several excited levels of Sm-150 and148Sm, limits were set at level of T-1/2>10(20 )-10(21)year.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA24-10180S" target="_blank" >GA24-10180S: Exploring the Properties of Neutrinos through Double Beta Decay: An Interplay between Theory and Experiment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
85
Issue of the periodical within the volume
2
Country of publishing house
DE - GERMANY
Number of pages
30
Pages from-to
1-30
UT code for WoS article
001419812800003
EID of the result in the Scopus database
2-s2.0-85219753496