The clustering of luminous red galaxies at z $\sim$ 0.7 from eBOSS and
  BOSS data
  We present the first scientific results from the luminous red galaxy sample
(LRG) of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). We
measure the small and intermediate scale clustering from a sample of more than
61,000 galaxies in the redshift range $0.6 < z < 0.9$. We interpret these
measurements in the framework of the Halo Occupation Distribution. The bias of
eBOSS LRGs is $2.30 \pm 0.03$, with a satellite fraction of $13\pm3$\% and a
mean halo mass of $2.5\times10^{13}h^{-1}M_{\odot}$. These results are
consistent with expectations, demonstrating that eBOSS galaxies will be
reliable tracers of large scale structure at $z\sim 0.7$. The eBOSS galaxy bias
implies a scatter of luminosity at fixed halo mass, $\sigma_{\log L}$, of 0.19
dex. Using the clustering of massive galaxies from BOSS-CMASS, BOSS-LOWZ, and
SDSS, we find that $\sigma_{\log L}=0.19$ is consistent with observations over
the full redshift range that these samples cover. The addition of eBOSS to
previous surveys allows investigation of the evolution of massive galaxies over
the past $\sim 7$ Gyr.
