The Experimental Nuclear Reaction Data (EXFOR): Extended Computer Database and Web Retrieval System

TL;DR

The paper describes the EXFOR nuclear reaction database and web system, highlighting new features like data uploads, renormalization, and covariance calculations, supporting nuclear data research and applications globally.

Contribution

It introduces extended capabilities for the EXFOR database, including data uploads, renormalization, covariance matrices, and inverse reaction calculations, enhancing its utility for nuclear data evaluation.

Findings

Updated monthly database supports nuclear research.

New features enable advanced data analysis.

Accessible via multiple international websites.

Abstract

The EXchange FORmat (EXFOR) experimental nuclear reaction database and the associated Web interface provide access to the wealth of low- and intermediate-energy nuclear reaction physics data. This resource is based on numerical data sets and bibliographical information of $\sim$22,000 experiments since the beginning of nuclear science. The principles of the Web and database applications development are described. New capabilities for the data sets uploads, renormalization, covariance matrix, and inverse reaction calculations are presented. The EXFOR database, updated monthly, provides an essential support for nuclear data evaluation, application development, and research activities. It is publicly available at the websites of the International Atomic Energy Agency Nuclear Data Section, {\it http://www-nds.iaea.org/exfor}, the U.S. National Nuclear Data Center, {\it http://www.nndc.bnl.gov/exfor}, and the mirror sites in China, India and Russian Federation.