Peripheral Accumulation, Labour Power Absorption and Relative Surplus-Population: some basic remarks

Employment and unemployment are issues of crucial importance, especially in the so-called 'Third World' countries where the magnitude of unemployment has reached impressive levels. In reply to this a large number of studies have recently appeared. Nevertheless, Marxist contributions have so far been relatively scarce, especially at a theoretical level. The aim of this paper is to develop, from a Marxist perspective, some basic theoretical remarks on the employment and unemployment issues in relation to peripheral social formations

Rapidity distributions in exclusive Z plus jet and gamma plus jet events in pp collisions at root s=7 TeV

Rapidity distributions are presented for events containing either a Z boson or a photon with a single jet in proton-proton collisions produced at the CERN LHC. The data, collected with the CMS detector at root s = 7 TeV, correspond to an integrated luminosity of 5.0 fb(-1). The individual rapidity distributions of the boson and the jet are consistent within 5% with expectations from perturbative QCD. However, QCD predictions for the sum and the difference in rapidities of the two final-state objects show discrepancies with CMS data. In particular, next-to-leading-order QCD calculations, and two common Monte Carlo event generators using different methods to match matrix-element partons with parton showers, appear inconsistent with the data as well as with each other