Constraining Halo Occupation Distribution and Cosmic Growth Rate using
  Multipole Power Spectrum
  We propose a new method of measuring halo occupation distribution (HOD)
together with cosmic growth rate using multipole components of galaxy power
spectrum P_l(k). The nonlinear redshift-space distortion due to the random
motion of satellite galaxies, i.e., Fingers-of-God, generates high-l multipole
anisotropy in galaxy clustering such as the hexadecapole (l=4) and
tetra-hexadecapole (l=6), which are sensitive to the fraction and the velocity
dispersion of satellite galaxies. Using simulated samples following the HOD of
Luminous Red Galaxies (LRGs), we find that the input HOD parameters are
successfully reproduced from P_l(k) and that high-l multipole information help
to break the degeneracy among HOD parameters. We also show that the
measurements of the cosmic growth rate as well as the satellite fraction and
velocity dispersions are significantly improved by adding the small-scale
information of high-l multipoles.
