Publication:

Radiative decay of the 229mTh nuclear clock isomer in different host materials

Date

2025
Journal article
https://doi.org/10.1103/PhysRevResearch.7.013052
Simple item page Full metadata Statistics
 
cris.virtual.department#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.orcid0000-0003-3084-2543
cris.virtualsource.department77d06c14-6a7b-4d80-9c75-962dea483414
cris.virtualsource.orcid77d06c14-6a7b-4d80-9c75-962dea483414
dc.contributor.authorPineda, S., V
dc.contributor.authorChhetri, P.
dc.contributor.authorBara, S.
dc.contributor.authorElskens, Y.
dc.contributor.authorCasci, S.
dc.contributor.authorAlexandrova, A. N.
dc.contributor.authorAu, M.
dc.contributor.authorAthanasakis-Kaklamanakis, M.
dc.contributor.authorBartokos, M.
dc.contributor.authorBeeks, K.
dc.contributor.authorBernerd, C.
dc.contributor.authorClaessens, A.
dc.contributor.authorChrysalidis, K.
dc.contributor.authorCocolios, T. E.
dc.contributor.authorCorreia, J. G.
dc.contributor.authorDe Witte, H.
dc.contributor.authorElwell, R.
dc.contributor.authorFerrer, R.
dc.contributor.authorHeinke, R.
dc.contributor.authorHudson, E. R.
dc.contributor.imecauthorMerckling, C.
dc.date.accessioned2025-02-15T21:14:39Z
dc.date.available2025-02-15T21:14:39Z
dc.date.issued2025
dc.description.abstractA comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN of the radiative decay of the 229⁢𝑚 Th nuclear clock isomer embedded in different host materials is reported. The ratio of the number of radiative decay photons and the number of 229⁢𝑚 Th embedded are determined for single crystalline CaF2, MgF2, LiSrAlF6, AlN, and amorphous SiO2. For the latter two materials, no radiative decay signal was observed and an upper limit of the ratio is reported. The radiative decay wavelength was determined in LiSrAlF6 and CaF2, reducing its uncertainty by a factor of 2.5 relative to our previous measurement. This value is in agreement with the recently reported improved values from laser excitation.
dc.description.wosFundingTextWe acknowledge the support of the ISOLDE Collaboration and technical teams. Additionally, U.W. and J.G.C. acknowledge support from the Portuguese Foundation for Science and Technology (Fundacao para a Ciencia e a Tecnologia FCT, CERN/FIS-TEC/0003/2021) , and S.B. acknowledges support of the FWO, Belgium fellowship for fundamental research (Contract No. 1167324N) . This work is supported in part by Research Foundation Flanders (FWO, Belgium, nr. G078624N and I001323N) , the FWO-FNRS under the EOS program Project No. 40007501, the Special Research Fund (BOF KU Leuven C14/22/104) , the European Union's Horizon Europe Framework research and innovation programme under Grant No. 101057511 (EURO-LABS) , the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grants No. 101026762 and No. 861198 (LISA) , the European Research Council (ERC ThoriumNuclearClock, Grant No. 856415) , the European Union's Horizon 2020 research and innovation programme under Grant No. 819957, the Romanian IFA grant CERN/ISOLDE, the Nucleu Project No. PN23210102, and the Bavaria California Technology Center (BaCaTeC7[2019-2] ) .
dc.identifier.doi10.1103/PhysRevResearch.7.013052
dc.identifier.issn2643-1564
dc.identifier.urihttps://imec-publications.be/handle/20.500.12860/45215
dc.publisherAMER PHYSICAL SOC
dc.source.beginpage013052
dc.source.issue1
dc.source.journalPHYSICAL REVIEW RESEARCH
dc.source.numberofpages12
dc.source.volume7
dc.subject.keywordsVACUUM-ULTRAVIOLET
dc.subject.keywordsDATA SHEETS
dc.subject.keywordsTH-229
dc.subject.keywordsSPECTROSCOPY
dc.subject.keywordsTRANSITION
dc.subject.keywordsSTATE
dc.title

Radiative decay of the 229mTh nuclear clock isomer in different host materials

dc.typeJournal article
dspace.entity.typePublication
Files

Original bundle

Name:
PhysRevResearch.7.013052.pdf
Size:
2.07 MB
Format:
Adobe Portable Document Format
Description:
Published
Download
Publication available in collections:
Articles