The weight is independent of the particular basis; moreover, we have wt(Q) > 0 if and only if Q is a Weierstrass point. It is known that ∑ Q∈M wt(Q) = g 3 − g; therefore Weierstrass points exist on every Riemann surface of genus g ≥ 2 (for these and other basic facts, see [F-K]). In this paper we study such points on modular curves; these are a class of Riemann surfaces which play an important ...

PHENIX has measured J/ψ production at backward, central and forward rapidities both in p+p and d+Au collisions at √ sNN = 200 GeV during the third run of the RHIC collider. From the p+p collisions, we measure the total J/ψ cross section. From the d+Au collisions, we compute the nuclear modification factor versus transverse momentum, rapidity and centrality. All results presented here are prelim...

While presently available p-A data observe that the nuclear dependence of J/ψ and ψ production is the same within errors, we show that different nuclear dependence of J/ψ and ψ production in the kinematic region uncovered by the present p-A data can be predicted based on two different nuclear absorption scenarios. It is found that the predicted production ratio σ(ψ)/σ(J/ψ) at positive xF in A-p...

A review of some implications of J.P. Rushton's 1988 and 1990 work on racial differences in brain mass (size or weight) suggests that his comments do not constitute a viable scientific theory.