Showing papers by "Francesco Navarria published in 1989"
TL;DR: In this paper, a high statistics study of the proton structure functions F 2 ( x, Q 2 ) and R = σ L / σ T measured in deep inelastic scattering of muons on a hydrogen target is presented.
435 citations
TL;DR: The first measurements of the mass and width of the Z 0 at the DELPHI Collaboration at the LEP Collider were presented in this article, where the authors derived the measurements from the multihadronic final states produced in e + e − annihilations at several energies around the 0 mass.
147 citations
TL;DR: In this article, scaling violations in the proton structure function F 2 ( x, Q 2 ) measured with high statistics in deep inelastic scattering of muons on a hydrogen target are compared to predictions of perturbative QCD.
45 citations
TL;DR: The average lifetime of hadrons produced in hadronicZ¯¯¯¯0 decays has been measured with the DELPHI detector at LEP as discussed by the authors, based on the analysis of the impact parameter distributions of high p====== t====== muons and hadrons.
Abstract: The average lifetime ofB hadrons produced in hadronicZ
0 decays has been measured with the DELPHI detector at LEP. The measurement is based on the analysis of the impact parameter distributions of highp
t
muons and hadrons. The resulting meanB lifetimes are τ
B
=(1.30±0.10±0.08)ps and τ
B
=(1.27±0.04±0.12)ps respectively, giving a combined value of τ
B
=(1.28±0.10)ps. The hadronic sample was also used to measure the partialZ
0 width
$${{\Gamma _{b\bar b} } \mathord{\left/ {\vphantom {{\Gamma _{b\bar b} } {\Gamma _h }}} \right. \kern-
ulldelimiterspace} {\Gamma _h }}$$
and gave a value of 0.222
−0.031
+0.033
±0.017.
14 citations
10 Nov 1989-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the overall architecture of a lead-glass electromagnetic calorimeter with high granularity and a cathode pad readout is described; the dedicated electronics, the data-taking system and the preliminary results obtained with a CERN-PS test beam are presented.
Abstract: The overall architecture of a lead-glass electromagnetic calorimeter with high granularity and a cathode pad readout is described; the dedicated electronics, the data-taking system and the preliminary results obtained with a CERN-PS test beam are presented.
2 citations
TL;DR: In this paper, a large system of wire proportional chambers is constructed for the readout of the high-density projection chamber of the DELPHI experiment at the Large Electron-Positron (LEP) storage ring.
Abstract: A large system of wire proportional chambers is being constructed for the readout of the High-Density Projection Chamber of the DELPHI experiment at the Large Electron-Positron (LEP) storage ring. The system consists of 144 chambers, each 0.3-m/sup 2/, and read out via cathode pads. located at the end of the HPC drift volume. The authors discuss the design of the readout chamber; the chamber construction, the mechanical tolerances and gain uniformity, and the performance. >
15 Apr 1989-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the general architecture of the HPC second-level trigger is described, and an implementation based on digital sums of the drifted charge is discussed; the tests of a Camac prototype are reported.
Abstract: The general architecture of the HPC second-level trigger is described, and an implementation based on digital sums of the drifted charge is discussed. The tests of a Camac prototype are reported.