A1 Journal article (refereed)
Direct determination of the excitation energy of the quasistable isomer 180mTa (2022)


Nesterenko, D. A., Blaum, K., Delahaye, P., Eliseev, S., Eronen, T., Filianin, P., Ge, Z., Hukkanen, M., Kankainen, A., Novikov, Y. N., Popov, A. V., Raggio, A., Stryjczyk, M., & Virtanen, V. (2022). Direct determination of the excitation energy of the quasistable isomer 180mTa. Physical Review C, 106(2), Article 024310. https://doi.org/10.1103/PhysRevC.106.024310


JYU authors or editors


Publication details

All authors or editorsNesterenko, D. A.; Blaum, K.; Delahaye, P.; Eliseev, S.; Eronen, T.; Filianin, P.; Ge, Z.; Hukkanen, M.; Kankainen, A.; Novikov, Yu. N.; et al.

Journal or seriesPhysical Review C

ISSN2469-9985

eISSN2469-9993

Publication year2022

Publication date08/08/2022

Volume106

Issue number2

Article number024310

PublisherAmerican Physical Society (APS)

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1103/PhysRevC.106.024310

Publication open accessNot open

Publication channel open access

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/82591

Web address of parallel published publication (pre-print)https://arxiv.org/abs/2205.10534


Abstract

180mTa is a naturally abundant quasistable nuclide and the longest-lived nuclear isomer known to date. It is of interest, among others, for the search for dark matter, for the development of a γ laser, and for astrophysics. So far, its excitation energy has not been measured directly but has been based on an evaluation of available nuclear reaction data. We have determined the excitation energy of this isomer with high accuracy using the Penning-trap mass spectrometer JYFLTRAP. The determined mass difference between the ground and isomeric states of 180Ta yields an excitation energy of 76.79(55) keV for 180mTa. This is the first direct measurement of the excitation energy and provides a better accuracy than that of the previous evaluation value, 75.3(14) keV.


Keywordsnuclear physicstantalum


Contributing organizations


Related projects


Ministry reportingYes

Reporting Year2022

JUFO rating2


Last updated on 2024-03-04 at 19:17