DETECTION OF ETA-MESONS IN HEAVY-ION COLLISIONS AT 100 MEV NUCLEON/

Authors
BADALA A BARBERA R PALMERI A PAPPALARDO GS RIGGI F RUSSO AC TURRISI R
Citation
A. Badala et al., DETECTION OF ETA-MESONS IN HEAVY-ION COLLISIONS AT 100 MEV NUCLEON/, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 388(1-2), 1997, pp. 109-118
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
388
Issue
1-2
Year of publication
1997
Pages
109 - 118
Database
ISI
SICI code
0168-9002(1997)388:1-2<109:DOEIHC>2.0.ZU;2-O
Abstract
A study of the detection of eta mesons in heavy-ion collisions at 100 MeV/nucleon by a large array of BaF2 modules has been carried out usin g full GEANT3 simulations. The most probable decay modes of the eta me sons have been considered. Invariant mass spectra from the detection o f two or more electromagnetic showers are discussed. The different sou rces of contamination are evaluated. The detection limits in terms of production cross section are discussed. An analysis of experimental da ta taken at 95 MeV/nucleon with the MEDEA array showed a few events wh ich are compatible with the eta --> gamma gamma decay.