Wigner and mirror correlations in nuclear mass predictions with kernel ridge regression
Abstract
Wigner- and mirror-correlated kernel ridge regression (WKRR) and its odd-even extension WKRRoe are developed to improve nuclear mass predictions. The Wigner and mirror correlations are encoded entirely in the kernel functions without introducing more weight parameters. For experimentally known nuclear masses, WKRRoe achieves a leave-one-out root-mean-square deviation of 98.0 keV, which falls below the often-quoted 100-keV scale discussed in connection with chaos-related limits. The gain is mainly concentrated in light nuclei near N = Z and is especially large for mirror pairs. Further tests show that WKRRoe can potentially improve predictions for experimentally unknown nuclei near N = Z , particularly when their mirror partners have already been measured.
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BibTeX
@article{wu2026wigner,
title = {{Wigner and mirror correlations in nuclear mass predictions with kernel ridge regression}},
author = {X.H. Wu},
journal = {Physics Letters B},
year = {2026},
month = oct,
doi = {10.1016/j.physletb.2026.141082},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0370269326009329},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Wigner and mirror correlations in nuclear mass predictions with kernel ridge regression
AU - X.H. Wu
PY - 2026
DA - 2026/10/30
JO - Physics Letters B
DO - 10.1016/j.physletb.2026.141082
UR - https://linkinghub.elsevier.com/retrieve/pii/S0370269326009329
AB - Wigner- and mirror-correlated kernel ridge regression (WKRR) and its odd-even extension WKRRoe are developed to improve nuclear mass predictions. The Wigner and mirror correlations are encoded entirely in the kernel functions without introducing more weight parameters. For experimentally known nuclear masses, WKRRoe achieves a leave-one-out root-mean-square deviation of 98.0 keV, which falls below the often-quoted 100-keV scale discussed in connection with chaos-related limits. The gain is mainly concentrated in light nuclei near N = Z and is especially large for mirror pairs. Further tests show that WKRRoe can potentially improve predictions for experimentally unknown nuclei near N = Z , particularly when their mirror partners have already been measured.
SN - 0370-2693
SN - 1873-2445
ER -