Mapping the frontiers of the nuclear mass surface

Abstract

Nuclear masses play a central role in nuclear astrophysics, significantly impacting the origin of the elements and observables used to constrain ultradense matter. A variety of techniques are available to meet this need, varying in their emphasis on precision and reach from stability. Here I briefly summarize the status of and near-future for the time-of-flight magnetic-rigidity (TOF-$B\rho$) mass measurement technique, emphasizing the complementary and interconnectedness with higher-precision mass measurement methods. This includes of recent examples from TOF-$B\rho$ mass measurements that map the evolution of nuclear structure across the nuclear landscape and significantly impact the results and interpretation of astrophysical model calculations. I also forecast expected expansion in the known nuclear mass surface from future measurement at the Facility for Rare Isotope Beams.

arXiv commentInvited contribution to the proceedings of Nuclear Physics in Astrophysics IX (NPA IX) - Frankfurt, Germany 2019

References in corpus (22)

• Nuclear Ground-State Masses and Deformations
• The impact of individual nuclear properties on $r$-process nucleosynthesis
• Modified Empirical Parametrization of Fragmentation Cross Sections
• Precision Atomic Physics Techniques for Nuclear Physics with Radioactive Beams
• The outer crust of non-accreting cold neutron stars
• First Penning-trap mass measurement in the millisecond half-life range: the exotic halo nucleus 11Li
• Direct mapping of nuclear shell effects in the heaviest elements
• Direct mass measurements of 19B, 22C, 29F, 31Ne, 34Na and other light exotic nuclei
• Direct Measurement of the Mass Difference of Ho163 and Dy163 Solves the Q-Value Puzzle for the Neutrino Mass Determination
• Dawning of the N=32 shell closure seen through precision mass measurements of neutron-rich titanium isotopes
• The importance of nuclear masses in the astrophysical rp-process
• Nuclear Physics of the Outer Layers of Accreting Neutron Stars
• Nuclear Reactions in the Crusts of Accreting Neutron Stars
• Precision mass measurements on neutron-rich rare-earth isotopes at JYFLTRAP - reduced neutron pairing and implications for the $r$-process calculations
• Precision Mass Measurement of ${}^{58-63}$Cr: Nuclear Collectivity towards the \emph{N}=40 Island of Inversion
• Production of very neutron-rich nuclei with a 76Ge beam
• Time-of-flight mass measurements for nuclear processes in neutron star crusts
• Mass Measurements Demonstrate a Strong N =28 Shell Gap in Argon
• Time-of-flight mass measurements of neutron-rich chromium isotopes up to N = 40 and implications for the accreted neutron star crust
• Mass measurement of 56Sc reveals a small A=56 odd-even mass staggering, implying a cooler accreted neutron star crust
• High-precision mass measurement of ${}^{56}$Cu and the redirection of the rp-process flow
• Calculation of resonance energies from Q-values

Cited by in corpus (2)

• Deep crustal heating for realistic compositions of thermonuclear ashes
• Urca Nuclide Production in Type-I X-ray Bursts and Implications for Nuclear Physics Studies