Horizontal Evaluations

Members of the USNDP are often involved in horizontal evaluations. These involve evaluations of experimentally measured nuclear quantities that span nuclei across mass chains. Provided here is a centralized access to the results and ongoing activities of these evaluations.


Subject Area Material Description
Alpha Decay Review of Alpha-Decay Data from Doubly-Even Nuclei Nuclear Data Sheets publication. Nuclear radius paramters calculated using the Preston Formula for α decay probabilities.
Atomic Mass Compilation Compilation of Masses post-2016 Publication in Atomic Data and Nuclear Data Tables
Atomic Mass Evaluation NNDC access to AME Web site containing files, links to references, and older versions
B(E2) Evaluations B(E2) Evaluations Recent evaluation of data on electric quadrupole transition probabilites. Page to retrieve adopted, experimental, and predicted values
Beta Delayed Neutrons Evaluation of Beta-Delayed Neutron Emissoin Probabilities and Half-Lives for Z=2-28 Nuclear Data Sheets publication
Compilation and Evaluation of Beta-Delayed Neutron Emission Probabilities and Half-Lives for Z > 28 Precursors Nuclear Data Sheets publication
DDEP Decay Data Evaluation Project The DDEP homepage
Double Beta Decay Double beta decay Page to retrieve adopted, experimental, and predicted values
EGAF Evaluated Gamma-ray Activation File IAEA page with links to EGAF files in ENSDF format
E0 Transitions Electric monopole transitions between 0+ states for nuclei throughout the periodic table Publication in Atomic Data and Nuclear Data Tables
Ground State and Isomeric Spins Compiliation of directly measured nuclear spins of ground states and long-lived isomers Nuclear Data Sheets publication
K Isomers K Isomers Review article
Configurations and hindered decays of K isomers in deformed nuclei with A > 100 Decay properties of high-K isomers in deformed and transition nuclei
Configurations and hindered decays of K isomers in deformed nuclei with A > 100 Erratum
Nuclear Isomers Atlas of Nuclear Isomers (2nd Edition) Journal publication
Logft Values Review of Logft Values in β Decay Journal publication
Electric and Magnetic Moments Tables of Nuclear Magnetic Dipole and Electric Quadrupole Moments A compilation of experimental measurements
Evaluated Electric Moments Table of nuclear electric quadrupole moments Compiled and evaluated nuclear electric quadrupole moments (2016)
Magnetic-Rotational Bands Table of Magnetic Dipole Rotational Bands (2000)
Magnetic-Rotational Bands Table of Magnetic Dipole Rotational Bands (2006)
Superdeformed Bands Table of Superdeformed Bands and Fission Isomers Nuclear Data Sheets publication

Database Manager: E.A. McCutchan, NNDC, Brookhaven National Laboratory

Web: Benjamin Shu, NNDC, Brookhaven National Laboratory

Data Source: ENSDF is compiled by the International Network of Nuclear Structure and Decay Data Evaluators