Freeze out conditions in Au + Au collision at √sNN = 200 GeV

Quantum chromodynamics predicts a phase transition from normal hadronic matter to a deconfined phase of quarks and gluons (QGP) at very high temperature or very large baryon density. Matter under such extreme conditions can be created in laboratory by colliding heavy ions at relativistic speeds. In this work, the effect of the feeddown contribution on the fitted temperature and baryo-chemical potential obtained from thermal model fit to the particle ratios have been studied. Also it has been found that there is large feed-down contribution to protons, π and Λ. The effect of feeddown on the freeze out parameters is noticeable