Using isotope shift for testing nuclear theory: The case of nobelium isotopes

Allehabi, Saleh O.; Dzuba, V. A.; Flambaum, V. V.; Afanasjev, A. V.; Agbemava, S. E.

doi:10.1103/physrevc.102.024326

Title: Using isotope shift for testing nuclear theory: The case of nobelium isotopes

Journal Article · Thu Aug 20 00:00:00 EDT 2020 · Physical Review. C

DOI:https://doi.org/10.1103/physrevc.102.024326· OSTI ID:1669903

^[1];

^[2]; Agbemava, S. E. ^[2]

University of New South Wales, Sydney (Australia)
Mississippi State University, Mississippi State, MS (United States)

We calculate field isotope shifts for nobelium atoms using nuclear charge distributions which come from different nuclear models.We demonstrate that comparing calculated isotope shifts with experiment can serve as a testing ground for nuclear theories. It also provides a way of extracting parameters of nuclear charge distribution beyond nuclear root mean square (rms) radius, e.g., parameter of quadrupole deformation β. The measurements of at least two atomic transitions is needed to disentangle the contributions of the changes in deformation and nuclear rms radius into field isotopic shift. We argue that a previous interpretation of the isotope measurements in terms of δ < r² > between ^252,254No isotopes should be amended when nuclear deformation is taken into account. As a result, we calculate isotope shifts for other known isotopes and for hypothetically metastable isotope ²⁸⁶No for which the predictions of nuclear models differ substantially.

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Research Organization:: Mississippi State Univ., Mississippi State, MS (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0013037

OSTI ID:: 1669903

Journal Information:: Physical Review. C, Vol. 102, Issue 2; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Isotope shifts for ${}^1S_0-{}^3P_{0,1}^o$ Yb lines from multi-configuration Dirac-Hartree-Fock calculations Schelfhout, Jesse S.; McFerran, John J. arXiv https://doi.org/10.48550/arxiv.2102.08657	text	January 2021

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Title: Using isotope shift for testing nuclear theory: The case of nobelium isotopes

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