15 papers
FUSION: a skill-based research agent for publicly obtainable nuclear-physics codes
Jin Lei
Running an unfamiliar nuclear-physics code is rarely difficult because of the physics alone. One must find and build the program, learn its input conventions, and decide whether a…
High-Dimensional Bayesian Calibration of Expensive Nuclear Models with Differentiable Emulation
Jin Lei
Full Bayesian calibration of expensive nuclear models has been blocked not by the cost of any single solve, but by the absence of exact likelihood gradients in legacy parameter-dep…
Coulomb bridge mechanism for peripheral polarization of weakly bound projectiles
Hao Liu, Jin Lei, Zhongzhou Ren
We identify the matrix elements that carry peripheral polarization of weakly bound projectiles through the Feshbach dynamical polarization potential (DPP) within the continuum-disc…
Self-consistent spectral framework for inclusive nonelastic breakup: The Trojan-horse method as its sub-Coulomb resonant limit
Jin Lei
At the keV-scale energies of stellar nucleosynthesis, the resonant charged-particle reactions addressed by the Trojan-horse method (THM) proceed through isolated near-threshold res…
Inclusive breakup reactions with non-spectator fragments: Generalization of the IAV sum rules
Jin Lei
The Ichimura-Austern-Vincent (IAV) sum rule formalism for inclusive breakup reactions treats the detected fragment as a spectator by replacing…
Channel couplings redirect absorbed flux from peripheral loss to fusion in weakly bound nuclear reactions
Hao Liu, Jin Lei, Zhongzhou Ren
In reactions of weakly bound nuclei, the absorption cross section mixes two physically distinct contributions: inner capture associated with compound-nucleus formation, and periphe…