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15 years of precision mass measurements at TITAN

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Abstract

Atomic masses represent key ingredients to understand the structure of atomic nuclei. In particular, they provide insights into the nuclear binding energy and, thus, into the combined forces that govern the stability of atomic nuclei. Given their high experimental precision and accuracy, these observables serve as stringent benchmarks for modern nuclear theory and are critical input for nuclear astrophysics and tests of fundamental symmetries. Here, we review the current status of precision atomic mass measurements, with a focus on short-lived radioactive species and relevant techniques employed at TRIUMF’s Ion Trap for Atomic and Nuclear science (TITAN). Coupled to the ISAC facility, TITAN has been in operation since 2007. Over the years, it has evolved in its capabilities, taking advantage of its unique combination of ion traps, including Paul traps, an electron beam ion trap (EBIT), a Penning trap, and most recently, an electrostatic multiple-reflection time-of-flight (MR-TOF) system.

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This manuscript has no associated data or the data will not be deposited. [Authors’ comment: This review article discusses 15 years of TITAN operation. It does not contain any new, original physics data.]

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Acknowledgements

We thank the TITAN collaboration for their hard work, dedication, and collegiality over many years. The many undergraduate students from around the world who contributed, the graduate students from the TITAN partner institutions, and the over 30 post-doctoral fellows who carried a major part of the success at TITAN. Since TITAN is a highly technical system, operating at the edge of technology, it is only possible with dedicated experts, many at TRIUMF and the partner institutions. In particular, we want to highlight Mr. M. Good, for almost 20 years of technical support of the highest level. Moreover, the success of TITAN is based on many people contributing including those who help on the user facility side of TRIUMF, and as such we thank the ISAC team, including the beam development and beam delivery groups to support and enable our collaborations to explore new target designs and new beams to ISAC as well as for scientific opportunities and discussion.

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Authors and Affiliations

  1. Science Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6A 2K3, Canada

    Anna A. Kwiatkowski, Jens Dilling & Stephan Malbrunot-Ettenauer

  2. Department of Physics and Astronomy, University of Victoria, 3800 Finnerty Road, Victoria, BC, V8O 5C2, Canada

    Anna A. Kwiatkowski

  3. Oak Ridge National Lab., ORNL, 1 Bethel Valley Road, Oak Ridge, TN, 37830, USA

    Jens Dilling

  4. Department of Physics, Duke University, 120 Science Street, Durham, NC, 27708, USA

    Jens Dilling

  5. Department of Physics, University of Toronto, 60 St. George St., Toronto, ON, M5S 1A7, Canada

    Stephan Malbrunot-Ettenauer

  6. School of Physics and Astronomy, The University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, Scotland, EH9 3FD, UK

    Moritz Pascal Reiter

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  1. Anna A. Kwiatkowski
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Correspondence to Jens Dilling.

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Communicated by Nicolas Alamanos.

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Kwiatkowski, A.A., Dilling, J., Malbrunot-Ettenauer, S. et al. 15 years of precision mass measurements at TITAN. Eur. Phys. J. A 60, 87 (2024). https://doi.org/10.1140/epja/s10050-024-01241-6

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