Using \sim 140 deg ^ { 2 } Subaru Hyper Suprime-Cam ( HSC ) survey data , we stack the weak lensing ( WL ) signal around five Planck clusters found within the footprint .
This yields a 15 \sigma detection of the mean Planck cluster mass density profile .
The five Planck clusters span a relatively wide mass range , M _ { WL, 500 c } = ( 2 - 30 ) \times \mbox { $ 10 ^ { 14 } M _ { \odot } $ } with a mean mass of M _ { WL, 500 c } = ( 4.15 \pm 0.61 ) \times \mbox { $ 10 ^ { 14 } M _ { \odot } $ } .
The ratio of the stacked Planck Sunyaev-Zel ’ dovich ( SZ ) mass to the stacked WL mass is \langle \mbox { $M _ { \mathrm { SZ } } $ } \rangle / \langle \mbox { $M _ { \mathrm { WL } } $ } \rangle = % 1 - b = 0.80 \pm 0.14 .
This mass bias is consistent with previous WL mass calibrations of Planck clusters within the errors .
We discuss the implications of our findings for the calibration of SZ cluster counts and the much discussed tension between Planck SZ cluster counts and Planck \Lambda CDM cosmology .