Stefan DickopfMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Bastian SikoraMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Annabelle KaiserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Marius MüllerMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Stefan UlmerInstitute for Experimental Physics, Heinrich Heine University Düsseldorf, Düsseldorf, GermanyUlmer Fundamental Symmetries Laboratory, RIKEN, Saitama, Japan, Vladimir A. YerokhinMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Zoltán HarmanMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Christoph H. KeitelMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Andreas MooserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Klaus BlaumMax Planck Institute for Nuclear Physics, Heidelberg, Germany
{"title":"^9$Be的精密光谱学克服了核结构的限制","authors":"Stefan DickopfMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Bastian SikoraMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Annabelle KaiserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Marius MüllerMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Stefan UlmerInstitute for Experimental Physics, Heinrich Heine University Düsseldorf, Düsseldorf, GermanyUlmer Fundamental Symmetries Laboratory, RIKEN, Saitama, Japan, Vladimir A. YerokhinMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Zoltán HarmanMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Christoph H. KeitelMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Andreas MooserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Klaus BlaumMax Planck Institute for Nuclear Physics, Heidelberg, Germany","doi":"arxiv-2409.06306","DOIUrl":null,"url":null,"abstract":"Many powerful tests of the Standard Model of particle physics and searches\nfor new physics with precision atomic spectroscopy are plagued by our lack of\nknowledge of nuclear properties. Ideally, such properties may be derived from\nprecise measurements of the most sensitive and theoretically best-understood\nobservables, often found in hydrogen-like systems. While these measurements are\nabundant for the electric properties of nuclei, they are scarce for the\nmagnetic properties, and precise experimental results are limited to the\nlightest of nuclei. Here, we focus on $^9$Be which offers the unique\npossibility to utilize comparisons between different charge states available\nfor high-precision spectroscopy in Penning traps to test theoretical\ncalculations typically obscured by nuclear structure. In particular, we perform\nthe first high-precision spectroscopy of the $1s$ hyperfine and Zeeman\nstructure in hydrogen-like $^9$Be$^{3+}$. We determine its effective Zemach\nradius with an uncertainty of $500$ ppm, and its bare nuclear magnetic moment\nwith an uncertainty of $0.6$ parts-per-billion (ppb) - uncertainties unmatched\nbeyond hydrogen. Moreover, we compare to measurements conducted on the\nthree-electron charge state $^9$Be$^{+}$, which, for the first time, enables\ntesting the calculation of multi-electron diamagnetic shielding effects of the\nnuclear magnetic moment at the ppb level. In addition, we test quantum\nelectrodynamics (QED) methods used for the calculation of the hyperfine\nsplitting. Our results serve as a crucial benchmark essential for transferring\nhigh-precision results of nuclear magnetic properties across different\nelectronic configurations.","PeriodicalId":501039,"journal":{"name":"arXiv - PHYS - Atomic Physics","volume":"8 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Precision spectroscopy on $^9$Be overcomes limitations from nuclear structure\",\"authors\":\"Stefan DickopfMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Bastian SikoraMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Annabelle KaiserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Marius MüllerMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Stefan UlmerInstitute for Experimental Physics, Heinrich Heine University Düsseldorf, Düsseldorf, GermanyUlmer Fundamental Symmetries Laboratory, RIKEN, Saitama, Japan, Vladimir A. YerokhinMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Zoltán HarmanMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Christoph H. KeitelMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Andreas MooserMax Planck Institute for Nuclear Physics, Heidelberg, Germany, Klaus BlaumMax Planck Institute for Nuclear Physics, Heidelberg, Germany\",\"doi\":\"arxiv-2409.06306\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Many powerful tests of the Standard Model of particle physics and searches\\nfor new physics with precision atomic spectroscopy are plagued by our lack of\\nknowledge of nuclear properties. Ideally, such properties may be derived from\\nprecise measurements of the most sensitive and theoretically best-understood\\nobservables, often found in hydrogen-like systems. While these measurements are\\nabundant for the electric properties of nuclei, they are scarce for the\\nmagnetic properties, and precise experimental results are limited to the\\nlightest of nuclei. Here, we focus on $^9$Be which offers the unique\\npossibility to utilize comparisons between different charge states available\\nfor high-precision spectroscopy in Penning traps to test theoretical\\ncalculations typically obscured by nuclear structure. In particular, we perform\\nthe first high-precision spectroscopy of the $1s$ hyperfine and Zeeman\\nstructure in hydrogen-like $^9$Be$^{3+}$. We determine its effective Zemach\\nradius with an uncertainty of $500$ ppm, and its bare nuclear magnetic moment\\nwith an uncertainty of $0.6$ parts-per-billion (ppb) - uncertainties unmatched\\nbeyond hydrogen. Moreover, we compare to measurements conducted on the\\nthree-electron charge state $^9$Be$^{+}$, which, for the first time, enables\\ntesting the calculation of multi-electron diamagnetic shielding effects of the\\nnuclear magnetic moment at the ppb level. In addition, we test quantum\\nelectrodynamics (QED) methods used for the calculation of the hyperfine\\nsplitting. Our results serve as a crucial benchmark essential for transferring\\nhigh-precision results of nuclear magnetic properties across different\\nelectronic configurations.\",\"PeriodicalId\":501039,\"journal\":{\"name\":\"arXiv - PHYS - Atomic Physics\",\"volume\":\"8 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Atomic Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.06306\",\"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 - Atomic Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.06306","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Precision spectroscopy on $^9$Be overcomes limitations from nuclear structure
Many powerful tests of the Standard Model of particle physics and searches
for new physics with precision atomic spectroscopy are plagued by our lack of
knowledge of nuclear properties. Ideally, such properties may be derived from
precise measurements of the most sensitive and theoretically best-understood
observables, often found in hydrogen-like systems. While these measurements are
abundant for the electric properties of nuclei, they are scarce for the
magnetic properties, and precise experimental results are limited to the
lightest of nuclei. Here, we focus on $^9$Be which offers the unique
possibility to utilize comparisons between different charge states available
for high-precision spectroscopy in Penning traps to test theoretical
calculations typically obscured by nuclear structure. In particular, we perform
the first high-precision spectroscopy of the $1s$ hyperfine and Zeeman
structure in hydrogen-like $^9$Be$^{3+}$. We determine its effective Zemach
radius with an uncertainty of $500$ ppm, and its bare nuclear magnetic moment
with an uncertainty of $0.6$ parts-per-billion (ppb) - uncertainties unmatched
beyond hydrogen. Moreover, we compare to measurements conducted on the
three-electron charge state $^9$Be$^{+}$, which, for the first time, enables
testing the calculation of multi-electron diamagnetic shielding effects of the
nuclear magnetic moment at the ppb level. In addition, we test quantum
electrodynamics (QED) methods used for the calculation of the hyperfine
splitting. Our results serve as a crucial benchmark essential for transferring
high-precision results of nuclear magnetic properties across different
electronic configurations.