/usr/include/ThePEG/Helicity/Vertex/ is in libthepeg-dev 1.8.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ThePEG/Helicity/Vertex/AbstractFFSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractFFSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractFFTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractFFTVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractFFVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractFFVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractFFVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractFFVVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractRFSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractRFSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractRFVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractRFVVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractSSSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractSSSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractSSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractSSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractSSTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractSSTVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVSVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVVVertex.h
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/AbstractVVVVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/
/usr/include/ThePEG/Helicity/Vertex/Scalar/FFSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/FFSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/GeneralVVSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/GeneralVVSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/RFSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/RFSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/SSSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/SSSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/SSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/SSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/VSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/VSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/VVSSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/VVSSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Scalar/VVSVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Scalar/VVSVertex.h
/usr/include/ThePEG/Helicity/Vertex/Tensor/
/usr/include/ThePEG/Helicity/Vertex/Tensor/FFTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Tensor/FFTVertex.h
/usr/include/ThePEG/Helicity/Vertex/Tensor/FFVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Tensor/FFVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/Tensor/SSTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Tensor/SSTVertex.h
/usr/include/ThePEG/Helicity/Vertex/Tensor/VVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Tensor/VVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/Tensor/VVVTVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Tensor/VVVTVertex.h
/usr/include/ThePEG/Helicity/Vertex/Vector/
/usr/include/ThePEG/Helicity/Vertex/Vector/FFVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Vector/FFVVertex.h
/usr/include/ThePEG/Helicity/Vertex/Vector/GeneralFFVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Vector/GeneralFFVVertex.h
/usr/include/ThePEG/Helicity/Vertex/Vector/RFVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Vector/RFVVertex.h
/usr/include/ThePEG/Helicity/Vertex/Vector/VVVVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Vector/VVVVVertex.h
/usr/include/ThePEG/Helicity/Vertex/Vector/VVVVertex.fh
/usr/include/ThePEG/Helicity/Vertex/Vector/VVVVertex.h
/usr/include/ThePEG/Helicity/Vertex/VertexBase.fh
/usr/include/ThePEG/Helicity/Vertex/VertexBase.h