A group is a collection of several projects.
If you organize your projects under a group, it works like a folder.
You can manage your group member’s permissions and access to each project in the group.
C
CLHEP
The CLHEP project was proposed by Leif Lönnblad at CHEP 92. It is intended to be a set of HEP-specific foundation and utility classes such as random generators, physics vectors, geometry and linear algebra.