LBNL, Berkeley, California
Historically, progress in high-energy physics has largely been determined by development of more-capable accelerators. This trend continues with the imminent commissioning of the Large Hadron Collider and the worldwide development effort toward the International Linear Collider. Looking beyond these machines, there are two scientific areas ripe for further exploration–the energy frontier and the precision frontier. To explore the energy frontier, two approaches toward multi-TeV beams are being studied, an electron-positron linear collider based on a novel two-beam powering system (CLIC), and a Muon Collider. Work on the precision frontier involves accelerators with very high intensity, including a proposed Super-B Factory and a muon-based Neutrino Factory. Without question, one of the most promising approaches is the development of muon-beam accelerators. Such machines would substantially advance the state of the art in accelerator design and, to reap their scientific potential, require sophisticated instrumentation to characterize the beam and control it with unprecedented precision.
INFN/LNF, Frascati (Roma)
LAL, Orsay
roma3, Rome
INFN-Roma, Roma
INFN Gruppo di Cosenza, Arcavacata di Rende (Cosenza)
The test of the crabbed waist scheme, undergoing at the Frascati DAΦNE accelerator complex, needs a fast and accurate measurement of the absolute luminosity, as well as a full characterization of the background conditions. Three different monitors, a Bhabha calorimeter, a Bhabha GEM tracker and a gamma bremsstrahlung proportional counter have been designed, tested and installed on the accelerator at the end of January 2008. Results from beam-test measurements, comparison with the Monte Carlo simulation and preliminary data collected during the SIDDHARTA run are presented.