High-Potential Phenomena

High pT Phenomena at RHIC

First data from RHIC reveals a suppression of hadron production at high pT in central Au-Au collisions relative to the expectation from nucleonnucleon collisions. Known nuclear effects are excluded as origin. The apparent suppression of high pT hadrons thus indicates quenching of jet production. The origin of this jet quenching is uncertain and whether it is related to parton energy loss throug...

High-Field Phenomena of Qubits

Electron and nuclear spins are very promising candidates to serve as quantum bits (qubits) for proposed quantum computers, as the spin degrees of freedom are relatively isolated from their surroundings and can be coherently manipulated, e.g., through pulsed electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR). For solid-state spin systems, impurities in crystals based on c...

High energy phenomena in the Cartwheel’s ring

We present the first X-ray detection of the Cartwheel’s ring. The impact that created the characteristic optical structure is responsible also for an enhanced level of star formation to which we can ascribe the relatively high level of X-ray emission observed. Deeper images and spectroscopic information are needed to confirm or disprove the hypothesis that High Mass X-ray Binaries contribute mo...

High Energy Phenomena in Clusters of Galaxies

Several phenomena in high energy astrophysics have been recently related to clusters of galaxies and to cosmic ray interactions occurring inside these structures. In many of these phenomena the observable effects depend on the energy density of cosmic rays confined in the Intra Cluster (IC) medium, which is a poorly known quantity. We propose here that useful indications about this quantity can...

Theohies of High Transverse Momenta Phenomena