/usr/include/ThePEG/Utilities/ is in libthepeg-dev 1.8.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ThePEG/Utilities/AnyReference.h
/usr/include/ThePEG/Utilities/CFile.h
/usr/include/ThePEG/Utilities/CFileLineReader.fh
/usr/include/ThePEG/Utilities/CFileLineReader.h
/usr/include/ThePEG/Utilities/ClassDescription.fh
/usr/include/ThePEG/Utilities/ClassDescription.h
/usr/include/ThePEG/Utilities/ClassTraits.h
/usr/include/ThePEG/Utilities/CompSelector.h
/usr/include/ThePEG/Utilities/Current.h
/usr/include/ThePEG/Utilities/DIterator.h
/usr/include/ThePEG/Utilities/Debug.h
/usr/include/ThePEG/Utilities/DebugItem.h
/usr/include/ThePEG/Utilities/DescribeClass.h
/usr/include/ThePEG/Utilities/DescriptionList.h
/usr/include/ThePEG/Utilities/Direction.h
/usr/include/ThePEG/Utilities/Direction.xh
/usr/include/ThePEG/Utilities/DynamicLoader.h
/usr/include/ThePEG/Utilities/EnumIO.h
/usr/include/ThePEG/Utilities/Exception.fh
/usr/include/ThePEG/Utilities/Exception.h
/usr/include/ThePEG/Utilities/HoldFlag.h
/usr/include/ThePEG/Utilities/Interval.fh
/usr/include/ThePEG/Utilities/Interval.h
/usr/include/ThePEG/Utilities/Interval.tcc
/usr/include/ThePEG/Utilities/Level.h
/usr/include/ThePEG/Utilities/LoopGuard.h
/usr/include/ThePEG/Utilities/Maths.h
/usr/include/ThePEG/Utilities/MaxCmp.h
/usr/include/ThePEG/Utilities/Named.h
/usr/include/ThePEG/Utilities/ObjectIndexer.h
/usr/include/ThePEG/Utilities/Rebinder.fh
/usr/include/ThePEG/Utilities/Rebinder.h
/usr/include/ThePEG/Utilities/Selector.h
/usr/include/ThePEG/Utilities/Selector.tcc
/usr/include/ThePEG/Utilities/SimplePhaseSpace.h
/usr/include/ThePEG/Utilities/SimplePhaseSpace.tcc
/usr/include/ThePEG/Utilities/SimplePhaseSpace.xh
/usr/include/ThePEG/Utilities/StringUtils.h
/usr/include/ThePEG/Utilities/Throw.h
/usr/include/ThePEG/Utilities/Triplet.h
/usr/include/ThePEG/Utilities/TypeInfo.h
/usr/include/ThePEG/Utilities/UnitIO.h
/usr/include/ThePEG/Utilities/UtilityBase.h
/usr/include/ThePEG/Utilities/UtilityBase.tcc
/usr/include/ThePEG/Utilities/VSelector.h
/usr/include/ThePEG/Utilities/VSelector.tcc
/usr/include/ThePEG/Utilities/XSecStat.h