Molecular excitation in the Interstellar Medium: recent advances in collisional, radiative and chemical processes

We review the different excitation processes in the interstellar mediumComment: Accepted in Chem. Re

Massless geodesics in AdS5×Y(p,q)AdS_5\times Y(p,q) as a superintegrable system

A Carter like constant for the geodesic motion in the $Y(p,q)$ Einstein-Sasaki geometries is presented. This constant is functionally independent with respect to the five known constants for the geometry. Since the geometry is five dimensional and the number of independent constants of motion is at least six, the geodesic equations are superintegrable. We point out that this result applies to the configuration of massless geodesic in $AdS_5\times Y(p,q)$ studied by Benvenuti and Kruczenski, which are matched to long BPS operators in the dual N=1 supersymmetric gauge theory.Comment: 20 pages, no figures. Small misprint is corrected in the Killing-Yano tensor. No change in any result or conclusion

Developments for a scintillator tile sampling hadron calorimeter with 'longitudinal' tile configuration

In a scintillation tile calorimeter with wavelength shifting fiber readout significant simplifications of the construction and the assembly are possible if the tiles are oriented "longitudinally", i.e. in r-phi plane for a barrel configuration. For a hybrid calorimeter consisting of a scintillator tile hadron compartment and a sufficiently containing LAr EM compartment, as proposed for the ATLAS detector, good jet resolution is predicted by simulations. The aim of the proposal is to construct a test module and to check the simulation results by test beam measurements. Several component tests and further simulations and engineering studies are needed to optimize the design of a large calorimeter structure

Study of prompt dimuon and charm production with proton and heavy ion beams at the CERN SPS: proposal.

NA6

Recent results on J/ψ from experiment NA50

The J/$\psi$ production in Pb-Pb interactions induced by 158 GeV/c incident Pb ions is studied as a function of centrality, as estimated from the neutral transverse energy or, alternatively, from the very forward hadronic energy of the collision. The J/$\psi$ yield exhibits a similar pattern with a first drop for mid-peripheral collisions and a steady decrease for the most central reactions. Conventional hadronic models axe unable to fairly reproduce this trend which finds a natural explanation in a deconfined quark-gluon phase scenario. The J/$\psi$ transverse momentum distributions and their dependence with centrality are also reviewed in this presentation. (20 refs)

J/ψ\psi suppression in ultrarelativistic heavy-ion collisions

NA5

Charmonium suppression in Pb-Pb collisions and quark-gluon deconfinement

NA5

Evidence for deconfinement from the J/ψ\psi suppression pattern in Pb-Pb collisions by the NA50 experiment

NA5