Precise mass measurements of radioactive nuclides for astrophysics

Clark, Jason; Savard, Guy; Mumpower, Matthew; Kankainen, Anu

doi:10.1140/epja/s10050-023-01037-0

Cited by 5 publications

(2 citation statements)

References 136 publications

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“…In nuclear astrophysics the energy output and the produced elements depend on the masses of the involved nuclides. In Precision mass measurements of radioactive nuclides for astrophysics Clark et al [3] argue that the masses of rare nuclides have to be known with a precision of 50 keV/c 2 or better to adequately discriminate models that explain the observables. Recently, thanks to the advent of new facilities and mass-measurement techniques, there is a wealth of precise and accurate mass data.…”

Section: Introductionmentioning

confidence: 99%

Precision nuclear physics experiments and theory

Blaum,

Borge

2024

Eur. Phys. J. A

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The advances in technology mainly concerning ion traps, storage rings, lasers, high-precision frequency measurements, detectors, and particle beams as well as advances in atom and ion manipulation have allowed for a considerable progress in the determination of fundamental parameters and quantities of radionuclides such as masses, electromagnetic moments, lifetimes and beta decay correlations. The main subjects covered by this topical collection are: high-precision mass measurements both with Penning traps and storage rings for neutrino physics, nuclear structure, astrophysics, and decay studies. Laser spectroscopy is applied for the determination of other ground state properties like spins, moments, and nuclear charge radii. Furthermore, results from decay studies of highly charged ions and reactions in storage rings are presented.

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Section: Introductionmentioning

confidence: 99%

Precision nuclear physics experiments and theory

Blaum,

Borge

2024

Eur. Phys. J. A

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“…Masses are often cited as the primary source of uncertainty, as they influence all other properties (Clark et al 2023). In the rprocess, mass differences control the matter flow in equilibrium via their appearance in the exponent of the Saha equation.…”

Section: Introductionmentioning

confidence: 99%

Nuclear Uncertainties Associated with the Nucleosynthesis in Ejecta of a Black Hole Accretion Disk

Mumpower,

Sprouse,

Miller

et al. 2024

ApJ

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The simulation of heavy element nucleosynthesis requires input from yet-to-be-measured nuclear properties. The uncertainty in the values of these off-stability nuclear properties propagates to uncertainties in the predictions of elemental and isotopic abundances. However, for any given astrophysical explosion, there are many different trajectories, i.e., temperature and density histories, experienced by outflowing material, and thus different nuclear properties can come into play. We consider combined nucleosynthesis results from 460,000 trajectories from a black hole accretion disk and find the spread in elemental predictions due solely to unknown nuclear properties to be a factor of a few. We analyze this relative spread in model predictions due to nuclear variations and conclude that the uncertainties can be attributed to a combination of properties in a given region of the abundance pattern. We calculate a cross-correlation between mass changes and abundance changes to show how variations among the properties of participating nuclei may be explored. Our results provide further impetus for measurements of multiple quantities on individual short-lived neutron-rich isotopes at modern experimental facilities.

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