/usr/lib/x86_64-linux-gnu/ is in libroot-roofit5.34 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/root5.34/
/usr/lib/x86_64-linux-gnu/root5.34/libRooStats.rootmap
/usr/lib/x86_64-linux-gnu/root5.34/libHistFactory.rootmap
/usr/lib/x86_64-linux-gnu/root5.34/libHistFactory.so.5.34
/usr/lib/x86_64-linux-gnu/root5.34/libRooFitCore.rootmap
/usr/lib/x86_64-linux-gnu/root5.34/libRooFit.so.5.34
/usr/lib/x86_64-linux-gnu/root5.34/libRooStats.so.5.34
/usr/lib/x86_64-linux-gnu/root5.34/libRooFitCore.so.5.34
/usr/lib/x86_64-linux-gnu/root5.34/libRooFit.rootmap
/usr/lib/x86_64-linux-gnu/libHistFactory.so.5.34
/usr/lib/x86_64-linux-gnu/libRooFit.so.5.34
/usr/lib/x86_64-linux-gnu/libRooStats.so.5.34
/usr/lib/x86_64-linux-gnu/root5.34/libRooFit.so
/usr/lib/x86_64-linux-gnu/root5.34/libRooFitCore.so.5
/usr/lib/x86_64-linux-gnu/root5.34/libHistFactory.so.5
/usr/lib/x86_64-linux-gnu/root5.34/libRooStats.so
/usr/lib/x86_64-linux-gnu/root5.34/libRooStats.so.5
/usr/lib/x86_64-linux-gnu/root5.34/libRooFitCore.so
/usr/lib/x86_64-linux-gnu/root5.34/libHistFactory.so
/usr/lib/x86_64-linux-gnu/root5.34/libRooFit.so.5
/usr/lib/x86_64-linux-gnu/libRooFitCore.so.5.34