Fragmentation in peripheral heavy-ion collisions: from neck emission to spectator decays
Creators
- Lukasik, J.
- Auger, G.
- Begemann-Blaich, M.L.
- Bellaize, N.
- Bittiger, R.
- Bocage, F.
- Borderie, B.
- Bougault, R.
- Bouriquet, B.
- Charvet, J.L.
- Chbihi, A.
- Dayras, R.
- Durand, D.
- Frankland, J.D.
- Galichet, E.
- Gourio, D.
- Guinet, D.
- Hudan, S.
- Hurst, B.
- Lautesse, P.
- Lavaud, F.
- Le Fevre, A.
- Legrain, R.
- Lopez, O.
- Lynen, U.
- Mueller, W.F.J.
- Nalpas, L.
- Orth, H.
- Plagnol, E.
- Rosato, E.
- Saija, A.
- Schwarz, C.
- Sfienti, C.
- Steckmeyer, J.C.
- Tamain, B.
- Trautmann, W.
- Trzcinski, A.
- Turzo, K.
- Vient, E.
- Vigilante, M.
- Volant, C.
- Zwieglinski, B.
- Botvina, A.S.
Description
Invariant cross sections of intermediate mass fragments in peripheral collisions of 197Au on 197Au at incident energies between 40 and 150 MeV per nucleon have been measured with the 4π multi-detector INDRA. The maximum of the fragment production is located near mid-rapidity at the lower energies and moves gradually towards the projectile and target rapidities as the energy is increased. Schematic calculations within an extended Goldhaber model suggest that the observed cross section distributions and their evolution with energy are predominantly the result of the clustering requirement for the emerging fragments and of their Coulomb repulsion from the projectile and target residues. The quantitative comparison with transverse energy spectra and fragment charge distributions emphasizes the role of hard scattered nucleons in the fragmentation process
Additional details
Identifiers
- DOI
- 10.1016/S0370-2693;
- PII
- S0370269303008116;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 566
- Journal Issue
- 1-2
- Journal Page Range
- p. 76-83
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37103922
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- CHARGE DISTRIBUTION; COALESCENCE; COLLIDING BEAMS; COULOMB FIELD; CROSS SECTIONS; EVOLUTION; GOLD 197 BEAMS; GOLD 197 REACTIONS; GOLD 197 TARGET; MEV RANGE 10-100; MEV RANGE 100-1000; NUCLEAR DECAY; NUCLEAR FRAGMENTATION; PARTICLE RAPIDITY; PERIPHERAL COLLISIONS; TRANSVERSE ENERGY
- Descriptors DEC
- BASIC INTERACTIONS; BEAMS; DECAY; ELECTRIC FIELDS; ENERGY; ENERGY RANGE; HEAVY ION REACTIONS; INTERACTIONS; ION BEAMS; KINETIC ENERGY; MEV RANGE; NUCLEAR REACTIONS; PARTICLE PROPERTIES; STRONG INTERACTIONS; TARGETS
Optional Information
- Copyright
- Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.