CARMA observations of massive Planck-discovered cluster candidates at
  z>0.5 associated with WISE overdensities: strategy, observations and
  validation
  We present 1-2 arcmin spatial resolution CARMA-8 31-GHz observations towards
19 unconfirmed Planck cluster candidates, selected to have significant galaxy
overdensities from the WISE early data release and thought to be at z>1 from
the WISE colors of the putative brightest cluster galaxy (BCG). We find a
Sunyaev-Zeldovich (SZ) detection in the CARMA-8 data towards 9 candidate
clusters, where one detection is considered tentative. For each cluster
candidate we present CARMA-8 maps, a study of their radio-source environment
and we assess the reliability of the SZ detection. The CARMA SZ detections
appear to be SZ-bright, with the mean, primary-beam-corrected peak flux density
of the decrement being -2.9mJy/beam with a standard deviation of 0.8, and are
typically offset from the Planck position by approximately 80 arcsec. Using
archival imaging data in the vicinity of the CARMA SZ centroids, we present
evidence that one cluster matches Abell 586-a known z~0.2 cluster; four
candidate clusters are likely to have 0.3<z<0.7; and, for the remaining 4, the
redshift information is inconclusive. We also argue that the sensitivity limits
resulting from the cross-correlation between Planck and WISE makes it
challenging to use our selection criterion to identify clusters at z > 1.
