title: New scalings in nuclear fragmentation.
abstract: Fragment partitions of fragmenting hot nuclei produced in central and semiperipheral collisions have been compared in the excitation energy region 4-10 MeV per nucleon where radial collective expansion takes place. It is shown that, for a given total excitation energy per nucleon, the amount of radial collective energy fixes the mean fragment multiplicity. It is also shown that, at a given total excitation energy per nucleon, the different properties of fragment partitions are completely determined by the reduced fragment multiplicity (i.e., normalized to the source size). Freeze-out volumes seem to play a role in the scalings observed.
authors.affiliation: GANIL (DSM-CEA/CNRS/IN2P3), F-14076 Caen cedex, France.
authors.forename: E
authors.initials: E
authors.lastname: Bonnet
authors.forename: B
authors.initials: B
authors.lastname: Borderie
authors.forename: N
authors.initials: N
authors.lastname: Le Neindre
authors.forename: Ad R
authors.initials: AR
authors.lastname: Raduta
authors.forename: M F
authors.initials: MF
authors.lastname: Rivet
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authors.lastname: Bougault
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authors.lastname: Chbihi
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authors.initials: JD
authors.lastname: Frankland
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authors.lastname: Galichet
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authors.lastname: Gagnon-Moisan
authors.forename: D
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authors.lastname: Guinet
authors.forename: P
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authors.lastname: Lautesse
authors.forename: J
authors.initials: J
authors.lastname: Łukasik
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authors.lastname: Marini
authors.forename: M
authors.initials: M
authors.lastname: Pârlog
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authors.initials: E
authors.lastname: Rosato
authors.forename: R
authors.initials: R
authors.lastname: Roy
authors.forename: G
authors.initials: G
authors.lastname: Spadaccini
authors.forename: M
authors.initials: M
authors.lastname: Vigilante
authors.forename: J P
authors.initials: JP
authors.lastname: Wieleczko
authors.forename: B
authors.initials: B
authors.lastname: Zwieglinski