The fission of lead projectiles has been investigated at the CERN SPS by the NA50 experiment. For this study, a Cherenkov quartz detector was added to the standard NA50 setup to measure the charge of projectilelike fragments. The data collected on different targets at 40 and 158 GeV/c per nucleon are presented here. The contributions arising from the nuclear and the electromagnetic fission mechanism are extracted from the measured fission cross sections; the electromagnetic contribution is then compared to the Weizsacker-Williams predictions.
Fission cross sections of lead projectiles in Pb-nucleus interactions at 40 and 158 GeV/c per nucleon
DE FALCO, ALESSANDRO;PUDDU, GIOVANNA;USAI, GIANLUCA;
2004-01-01
Abstract
The fission of lead projectiles has been investigated at the CERN SPS by the NA50 experiment. For this study, a Cherenkov quartz detector was added to the standard NA50 setup to measure the charge of projectilelike fragments. The data collected on different targets at 40 and 158 GeV/c per nucleon are presented here. The contributions arising from the nuclear and the electromagnetic fission mechanism are extracted from the measured fission cross sections; the electromagnetic contribution is then compared to the Weizsacker-Williams predictions.
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