1208.2667 (D. C. McGlinchey et al.)

Impact parameter dependence of the nuclear modification of J/psi
production in d+Au collisions at sqrt(S_NN) = 200 GeV    [PDF]

D. C. McGlinchey, A. D. Frawley, R. Vogt

The centrality dependence of \surdsNN = 200 GeV d+Au J/{\psi} data, measured in 12 rapidity bins that span -2.2 < y < 2.4, has been fitted using a model containing an effective breakup cross section combined with EPS09 shadowing. The centrality dependence of the shadowing contribution was allowed to vary nonlinearly, employing a variety of assumptions, in an effort to explore the limits of what can be determined from the data. It is found that the onset of shadowing is a highly nonlinear function of impact parameter. The impact parameter dependencies of the effective breakup cross section and the shadowing parameterization are sufficiently distinct to be determined separately.

View original: http://arxiv.org/abs/1208.2667