Precision Mass Measurements of \textsuperscript{130}Te, \textsuperscript{130}Sn, and Their Impact on Models for R-Process Nucleosynthesis

Read full text
Authors: A. Cannon, W. S. Porter, A. A. Valverde, D. P. Burdette, A. M. Houff, B. J. Liu, A. Mitra, G. E. Morgan, C. Quick, D. Ray, L. Varriano, M. Brodeur
+3 more J. A. Clark, G. Savard, G. R. (Agronomist) Mathews
Cited by: 0
References: 1

Abstract

The astrophysical rapid neutron capture nucleosynthesis process (r-process) remains an active area of research due to the fact that it occurs in extreme conditions and involves reactions with exotic nuclei that are difficult to study experimentally. For the first time using the Phase-Imaging Ion Cyclotron Resonance (PI-ICR) technique, we measured the mass excesses of \textsuperscript{130}Te, \textsuperscript{130}Sn, and \textsuperscript{130}Sn\textsuperscript{m} with the Canadian Penning Trap (CPT). Our results show good agreement with previous Penning trap values obtained using the Time-of-Flight Ion Cyclotron Resonance (TOF-ICR) and the Fourier Transform Ion Cyclotron Resonance (FT-ICR) techniques, while being twice as precise for \textsuperscript{130}Sn. These new mass excesses were added to a SkyNet network calculation to determine their impact on r-process abundances and to find the best astrophysical conditions to reproduce the Solar System r-process abundance pattern. Finally, by treating lighter and heavier elements separately, we assess the relative frequency of events producing elements in a cold versus a hot r-process scenario.

Fields of Study & Subjects

Nuclear physics research studies Astronomical and nuclear sciences Particle physics theoretical and experimental studies

Publication details

Journal / source
arXiv (Cornell University)
Publication date
5 March 2026
Language
EN
Document type
Preprint