High resolution drift chambers for the NA48 experiment at CERN

We discuss construction details of large drift chambers for the NA48 experiment at CERN. Preliminary measurements on their performance are also presented

Elastic scattering of low-energy electrons by CH3CN and CH3NC molecules

Rotationally-summed elastic cross sections for electrons collisions with the isomers acetonitrile and methyl isocyanide are reported. Theoretical differential and integral cross sections are calculated using the UK molecular R-matrix codes in the energy range from 1 eV to 10 eV. The dynamic interaction is represented within a static-exchange plus polarization model based on the use of an extensive orbital sets. Both molecule have a large permanent dipole moment and a Born closure procedure is used to get more reliable cross sections. These molecules show low-energy, π∗ resonances at 2.4 and 2.7 eV for CH3CN and CH3NC, respectively; and very broad σ∗ ones at about 6 eV. Our results suggest that electron collisions with CH3CN / CH3NC show similar properties to those found for electron collisions with HCN / HNC

The beam and detector for the NA48 neutral kaon CP violation experiment at CERN RID C-6551-2009

The beam and detector, used for the NA48 experiment, devoted to the measurement of Re(epsilon'/epsilon), and for the NA48/1 experiment on rare K-S and neutral hyperon decays, are described. (C) 2007 Elsevier B.V. All rights reserved

The beam and detector for the NA48 neutral kaon CP violation experiment at CERN

The beam and detector, used for the NA48 experiment, devoted to the measurement of Re(epsilon'/epsilon) and for the NA48/1 experiment onrare K S and neutral hyperon decays, are described