S. V. Pineda, P. Chhetri, S. Bara, Y. Elskens, S. Casci, A. N. Alexandrova, M. Au, M. Athanasakis-Kaklamanakis, M. Bartokos, K. Beeks, C. Bernerd, A. Claessens, K. Chrysalidis, T. E. Cocolios, J. G. Correia, H. De Witte, R. Elwell, R. Ferrer, R. Heinke, E. R. Hudson, F. Ivandikov, Yu. Kudryavtsev, U. Köster, S. Kraemer, M. Laatiaoui, R. Lica, C. Merckling, I. Morawetz, H. W. T. Morgan, D. Moritz, L. M. C. Pereira, S. Raeder, S. Rothe, F. Schaden, K. Scharl, T. Schumm, S. Stegemann, J. Terhune, P. G. Thirolf, S. M. Tunhuma, P. Van Den Bergh, P. Van Duppen, A. Vantomme, U. Wahl, Z. Yue
{"title":"不同宿主材料中^{229m}$Th 核钟异构体的辐射衰变","authors":"S. V. Pineda, P. Chhetri, S. Bara, Y. Elskens, S. Casci, A. N. Alexandrova, M. Au, M. Athanasakis-Kaklamanakis, M. Bartokos, K. Beeks, C. Bernerd, A. Claessens, K. Chrysalidis, T. E. Cocolios, J. G. Correia, H. De Witte, R. Elwell, R. Ferrer, R. Heinke, E. R. Hudson, F. Ivandikov, Yu. Kudryavtsev, U. Köster, S. Kraemer, M. Laatiaoui, R. Lica, C. Merckling, I. Morawetz, H. W. T. Morgan, D. Moritz, L. M. C. Pereira, S. Raeder, S. Rothe, F. Schaden, K. Scharl, T. Schumm, S. Stegemann, J. Terhune, P. G. Thirolf, S. M. Tunhuma, P. Van Den Bergh, P. Van Duppen, A. Vantomme, U. Wahl, Z. Yue","doi":"arxiv-2408.12309","DOIUrl":null,"url":null,"abstract":"A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN\nof the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in\ndifferent host materials is reported. The ratio of the number of radiative\ndecay photons and the number of $^{229m}$Th embedded are determined for single\ncrystalline CaF$_2$, MgF$_2$, LiSrAlF$_6$, AlN, and amorphous SiO$_2$. For the\nlatter two materials, no radiative decay signal was observed and an upper limit\nof the ratio is reported. The radiative decay wavelength was determined in\nLiSrAlF$_6$ and CaF$_2$, reducing its uncertainty by a factor of 2.5 relative\nto our previous measurement. This value is in agreement with the recently\nreported improved values from laser excitation.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"32 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Radiative Decay of the $^{229m}$Th Nuclear Clock Isomer in Different Host Materials\",\"authors\":\"S. V. Pineda, P. Chhetri, S. Bara, Y. Elskens, S. Casci, A. N. Alexandrova, M. Au, M. Athanasakis-Kaklamanakis, M. Bartokos, K. Beeks, C. Bernerd, A. Claessens, K. Chrysalidis, T. E. Cocolios, J. G. Correia, H. De Witte, R. Elwell, R. Ferrer, R. Heinke, E. R. Hudson, F. Ivandikov, Yu. Kudryavtsev, U. Köster, S. Kraemer, M. Laatiaoui, R. Lica, C. Merckling, I. Morawetz, H. W. T. Morgan, D. Moritz, L. M. C. Pereira, S. Raeder, S. Rothe, F. Schaden, K. Scharl, T. Schumm, S. Stegemann, J. Terhune, P. G. Thirolf, S. M. Tunhuma, P. Van Den Bergh, P. Van Duppen, A. Vantomme, U. Wahl, Z. Yue\",\"doi\":\"arxiv-2408.12309\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN\\nof the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in\\ndifferent host materials is reported. The ratio of the number of radiative\\ndecay photons and the number of $^{229m}$Th embedded are determined for single\\ncrystalline CaF$_2$, MgF$_2$, LiSrAlF$_6$, AlN, and amorphous SiO$_2$. For the\\nlatter two materials, no radiative decay signal was observed and an upper limit\\nof the ratio is reported. The radiative decay wavelength was determined in\\nLiSrAlF$_6$ and CaF$_2$, reducing its uncertainty by a factor of 2.5 relative\\nto our previous measurement. This value is in agreement with the recently\\nreported improved values from laser excitation.\",\"PeriodicalId\":501206,\"journal\":{\"name\":\"arXiv - PHYS - Nuclear Experiment\",\"volume\":\"32 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Nuclear Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2408.12309\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2408.12309","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Radiative Decay of the $^{229m}$Th Nuclear Clock Isomer in Different Host Materials
A comparative vacuum ultraviolet spectroscopy study conducted at ISOLDE-CERN
of the radiative decay of the $^{229m}$Th nuclear clock isomer embedded in
different host materials is reported. The ratio of the number of radiative
decay photons and the number of $^{229m}$Th embedded are determined for single
crystalline CaF$_2$, MgF$_2$, LiSrAlF$_6$, AlN, and amorphous SiO$_2$. 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
LiSrAlF$_6$ and CaF$_2$, 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.
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