3 papers
astro-ph.GA2026
The Sc, Ti, and V Abundance Discrepancy: Testing High-Mass IMF Variation and Massive-Star Rotation
Soonchul Choi, Eda Gjergo, Youngman Kim +1
Scandium, titanium, and vanadium can be synthesized primarily in massive stars. Yet many of the current Galactic chemical evolution models under-produce these elements at early epo…
nucl-th2024
Deep learning for nuclear masses in deformed relativistic Hartree-Bogoliubov theory in continuum
Soonchul Choi, Kyungil Kim, Zhenyu He +2
Most nuclei are deformed, and these deformations play an important role in various nuclear and astrophysical phenomena. Microscopic nuclear mass models have been developed based on…
nucl-th2023
α-decay half-lives for even-even isotopes of W to U
Yong-Beom Choi, Chang-Hwan Lee, Myeong-Hwan Mun +2
We investigate α-decay half-lives for 74 {\le} Z {\le} 92 even-even nuclei within the semiclassical WKB approximation in deformed relativistic Hartree-Bogoliubov theory in continuu…