%0Computer Program %TPoPsCpp %XA new format for storing particle information (i.e., mass, spin, parity) has been developed. The format is a subset of the Generalized Nuclear Data Structure (GNDS) developed for storing nuclear reaction data. A C++ library dubbed "Property of Particles" (PoPs) has been developed to read particle data in the GNDS format. The PoPs library provides functions for reading in a GNDS particle database as well as for accessing a particle and its properties. %ABeck, Bret %Rhttps://doi.org/10.11578/dc.20190715.9 %Uhttps://www.osti.gov/doecode/biblio/27822 %CUnited States %D2019 %GEnglish %2USDOE National Nuclear Security Administration (NNSA) %1AC52-07NA27344 2019-02-25