  Suppression of quarkonia in heavy ion collisions with respect to
proton-proton collisions due to the Debye screening of the potential between
the heavy quarks was hypothesized to be a signature of the Quark Gluon Plasma
(QGP). However, other effects besides Debye screening, such as the statistical
recombination of quark anti-quark heavy flavor pairs, or co-mover absorption
can also affect quarkonia production in heavy ion collisions. Quantifying the
suppression of an entire family of quarkonium mesons can give us a model
dependent constraint on the temperature. The suppression of Upsilon can be
quantified by calculating the Nuclear Modification factor, RAA, which is the
ratio of the production in Au+Au collisions to the production in p+p scaled by
the number of binary collisions. We present our results for mid-rapidity
Upsilon(1S+2S+3S) production in p+p and Au+Au collisions at sqrt(sNN) = 200
GeV. The centrality dependence of RAA will be shown for the combined
Upsilon(1S+2S+3S) yield.
