Decodingβ-decay systematics: A global statistical model forβ−half-lives
نویسندگان
چکیده
منابع مشابه
Decoding Beta-Decay Systematics: A Global Statistical Model for Beta^- Halflives
Statistical modeling of nuclear data provides a novel approach to nuclear systematics complementary to established theoretical and phenomenological approaches based on quantum theory. Continuing previous studies in which global statistical modeling is pursued within the general framework of machine learning theory, we implement advances in training algorithms designed to improved generalization...
متن کاملA Global Model of β-Decay Half-Lives Using Neural Networks
Statistical modeling of nuclear data using artificial neural networks (ANNs) and, more recently, support vector machines (SVMs), is providing novel approaches to systematics that are complementary to phenomenological and semi-microscopic theories. We present a global model of β−-decay halflives of the class of nuclei that decay 100% by β− mode in their ground states. A fully-connected multilaye...
متن کاملStatistical Global Modeling of β−-Decay Halflives Systematics Using Multilayer Feedforward Neural Networks and Support Vector Machines
In this work, the beta-decay halflives problem is dealt as a nonlinear optimization problem, which is resolved in the statistical framework of Machine Learning (LM). Continuing past similar approaches, we have constructed sophisticated Artificial Neural Networks (ANNs) and Support Vector Regression Machines (SVMs) for each class with even-odd character in Z and N to global model the systematics...
متن کاملStatistical Modeling of Nuclear Systematics
Statistical modeling of data sets by neural-network techniques is offered as an alternative to traditional semiempirical approaches to global modeling of nuclear properties. New results are presented to support the position that such novel techniques can rival conventional theory in predictive power, if not in economy of description. Examples include the statistical inference of atomic masses a...
متن کاملSimple relation for alpha decay half-lives.
The experimental values of log&pT, yp(sec) plotted vs Zz /QQ are shown to fall on a nearly universal straight line with log, oT, ~z(sec)=(9. 54Z~. /1/Q ) —51.37, where Zz is the charge number of the daughter nucleus and Q is expressed in units of MeV. This behavior also numerically comes out of the semiclassical WKB calculation of the barrier penetration factor. The fine structure in the ratio ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2009
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.80.044332