Improved upper limit on degree-scale CMB B-mode polarization power from the 670 square-degree POLARBEAR survey

The POLARBEAR Collaboration, S. Adachi, T. Adkins +51

We report an improved measurement of the degree-scale cosmic microwave background $B$-mode angular-power spectrum over 670 square-degree sky area at 150 GHz with POLARBEAR. In the…