The Portuguese term for it is "música popular brasileira". The widely recognized Brazilian acronym is "MPB".
"Brazilian pop" and "Br-pop" are inventions by Ciro Santilli, which are how Ciro thinks Brazil should market it to the world.
Unfortunately "B-pop" is too ambiguous with British pop music, and should be avoided.
YouTube playlist by Ciro Santilli containing all the songs in this section: www.youtube.com/playlist?list=PLcZOZrP1P_V4_SBDnegcLTcP-5YhNmWBB
Bibliography:
- www.slipcue.com/music/brazil/aa_styles/mpb.html has many good album reviews