Measurement of pp and p-nucleus annihilation cross sections at very low energy at LEAR

Authors
Zenoni, A Bonomi, G Corradini, M Donzella, A Rizzini, EL Venturelli, L
Citation
A. Zenoni et al., Measurement of pp and p-nucleus annihilation cross sections at very low energy at LEAR, NUCL INST A, 447(3), 2000, pp. 512-535
Citations number
60
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
447
Issue
3
Year of publication
2000
Pages
512 - 535
Database
ISI
SICI code
0168-9002(20000611)447:3<512:MOPAPA>2.0.ZU;2-S
Abstract
An experimental procedure for the measurement of the (p) over bar p and (p) over bar-nucleus total annihilation cross sections, at very low (p) over b ar incident momenta (between 174 and 37 MeV/c), has been developed by the O belix experiment at LEAR. The procedure is based on the ability in using ga seous targets at different pressures (from 10(-4) to 3 bar absolute pressur e) and in recording both the coordinates of the vertex and the time of the annihilation. In this work, a detailed description of this experimental met hod is presented. (C) 2000 Published by Elsevier Science B.V. All rights re served.