II. EXPERIMENTAL REQUIREMENTS ON CALORIMETER Decays of K mesons into ππ are reconstructed imposing that the four photons detected by the calorimeter have invariant mass equal to the kaon mass, checking that the kaon candidate parent is collinear with the beam direction, and that gamma pairs can be reconstructed as originating from π decays. The main detector requirements can be classified as fo...

The widespread appeal of frame taxonomies seems due to how closely they match our intuitions about how to structure the world (as illustrated in folk taxonomies, for example). They also suggest enticing directions for processing (inheritance, defaults, etc.) and have found applications in other areas of computer science, such as database management and object-oriented programming. While the bas...

The dissociation of diacetyl dilute in krypton has been studied in a shock tube using laser schlieren densitometry at 1200-1800 K and reaction pressures of 55 +/- 2, 120 +/- 3, and 225 +/- 5 Torr. The experimentally determined rate coefficients show falloff and an ab initio/Master Equation/VRC-TST analysis was used to determine pressure-dependent rate coefficient expressions that are in good ag...

A quasi-homogeneous liquid krypton electromagnetic calorimeter is under construction for a precision study of CP violation in neutral kaons decays. The main characteristics of the detector are discussed, together with results on energy, space and time resolution obtained with a prototype detector.

We have employed the quartz-crystal microbalance technique to measure the sliding friction of krypton films physisorbed on gold. By slowly increasing the amplitude of the substrate oscillations, we have observed a sharp transition from a film locked to the substrate to a sliding one. This transition is characterized by hysteresis both in dissipation and inertial mass as the amplitude is decreas...