A possible evidence of Coulomb fission in lead-lead collisions at the CERNSPS

Citation
Mc. Abreu et al., A possible evidence of Coulomb fission in lead-lead collisions at the CERNSPS, NUOV CIM A, 111(8-9), 1998, pp. 963-969
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS
ISSN journal
1124-1861 → ACNP
Volume
111
Issue
8-9
Year of publication
1998
Pages
963 - 969
Database
ISI
SICI code
1124-1861(199808/09)111:8-9<963:APEOCF>2.0.ZU;2-U
Abstract
The NA50 experiment at CERN SPS has been equipped with a quartz Cherenkov d etector to-measure the charge of projectile-like fragments emitted in inter actions of the lead beam of 158 A GeV with a lead target. A fission peak h as been observed in the light output distribution of the fragment detector The information provided by the NA50 zero-degree calorimeter indicates that fission occurs in extremely peripheral collisions, compatible (within the resolution of the detector) with electromagnetic interaction. The expected yield of Coulomb fission events in our experimental condition has been eval uated and turns out to be about 40% smaller than the observed one.