Incomplete fusion in 12C+160Gd collisions

Siwek‐Wilczyńska, K.; Voorthuysen, E.H. du Marchie van; Popta, J. van; Siemssen, R.H.; Wilczyńskí, J.

doi:10.1016/0375-9474(79)90542-6

Cited by 119 publications

(28 citation statements)

References 17 publications

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“…In the former case, as shown by Parker et al [1], Bimbot et al [12], SiwekWilczynska et al [13], and Tserruya et al [14], an important contribution to their production is certainly due to the incomplete fusion of a 8Be fragment with lSlTa creating 189Ir which further decays by emitting one to several neutrons. In addition to this reaction mechanism, theoretical calculations suggest that, expecially at the higher incident energies here considered, the Ir isotopes may be produced by evaporation of one ~ particle and neutrons from 193Au created in the complete fusion reaction.…”

Section: Ir Isotopesmentioning

confidence: 88%

“…Previous investigations of the interaction of 12C with heavy nuclei at incident energies smaller than 10 MeV/ nucleon by Parker et al [1], Bimbot et al [12], SiwekWilczynska et al [13], and Tserruya et al [14] showed that the main contributing processes are the complete fusion of the projectile with the target and the incomplete fusion of e and 8Be fragments with the heavy nucleus (incomplete fusion).…”

Section: Total Cross-sections Of the Reactions Contributing To The Inmentioning

confidence: 97%

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Excitation functions for production of heavy residues in the interaction of12C with181Ta

Crippa

Gadioli

Vergani

et al. 1994

Z. Physik A - Hadrons and Nuclei

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Abstract.The excitation functions for production of 21 isotopes and isomers of Au, Pt, It, Os and Re in the interaction of 12C with 18~Ta from 54 to 98 MeV incident energy have been measured by the activation technique. The analysis of these data allows one to estimate the reaction cross-section and the cross-sections for complete fusion of 12C and the incomplete fusion of *Be and fragments with tantalum.

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Section: Ir Isotopesmentioning

confidence: 88%

Section: Total Cross-sections Of the Reactions Contributing To The Inmentioning

confidence: 97%

Excitation functions for production of heavy residues in the interaction of12C with181Ta

Crippa

Gadioli

Vergani

et al. 1994

Z. Physik A - Hadrons and Nuclei

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“…The authors of [38,39] considered the possibility of preequilibrium light-particle emission or projectile breakup, prior to the fragment emission, by adopting the ideas of the sum-rule model for incomplete fusion [43]. Here we suggest to generalize this concept one step further by requiring a minimum angular momentum fi = ~crit in the entrance channel.…”

Section: Minimum Angular Momentum For Fragment Emissionmentioning

confidence: 97%

Systematics of the power law parameter and minimum angular momenta for fragment production

Trautmann

Milkau

Lynen

et al. 1993

Z. Physik A - Hadrons and Nuclei

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Abstract.The element yield distributions a(Z) of intermediate mass fragments from proton, helium, and heavy-ion induced reactions exhibit a universal behaviour as a function of the bombarding energy. The power law parameter ~, obtained from fits with a(Z)ocZ ~, falls monotonically with increasing projectile energy Ela b and reaches a saturation value ~-2.0 at Elab---2 GeV. It is suggested that the behaviour at low bombarding energies is caused by a dynamical hindrance of the fragment emission at low angular momentum. PACS: 25.40.Sc; 25.70.Gh; 25.70.Lm; 25.70.Mn; 25.70.Pq reactions on heavy targets. Our intention hereby is twofold. We first show that the r parameters describing inclusive cross sections exhibit a universal behaviour when plotted as a function of the total projectile energy. They decrease monotonically with increasing projectile energy until they assume a saturation value at several GeV and higher energies. We then search for possible explanations of this behaviour but limit ourselves to the lower bombarding energies. We recall experimental evidence for dynamic effect of angular momentum in fragment emission, and we show that the rise of z towards low bombarding energies may result from a dynamical hindrance of fragment emission at low angular momentum.

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“…Various descriptions have been advanced. They are based essentially on the ideas of a massive transfer of nucleons from the projectile to the target or a projectile break-up [4,5], or a hot spot formation [6], or a preequilibrium emission [7]. This complicated situation certainly reflects the smooth transition from the mean field to the two body interaction which dominates heavy ion collisions in the projectile energy range under consideration.…”

Section: Introductionmentioning

confidence: 98%

Light charged particle emission in40Ar induced reactions on68Zn at 14.6, 19.6 and 35 MeV/nucleon

Fahli¹,

Coffin²,

Guillaume³

et al. 1987

Z. Physik A - Atomic Nuclei

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The light charged particles emitted in the 4~ reaction performed at 14.6, 19.6 and 35 MeV/nucleon have been studied inclusively. The energy spectra have been analysed in terms of preequilibrium emission, moving source and coalescence models. A complete coherence between the present data and those obtained separately from heavy fragment studies is achieved. These data are consistent with the onset of projectile fragmentation between 20 and 35 MeV/nucleon correlated with the formation of a highly excited region of the nuclear system inducing light particle emission. The other sources of light particles can be interpreted as statistical and sequential decay of the quasi projectile.

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Incomplete fusion in 12C+160Gd collisions

Cited by 119 publications

References 17 publications

Excitation functions for production of heavy residues in the interaction of12C with181Ta

Excitation functions for production of heavy residues in the interaction of12C with181Ta

Systematics of the power law parameter and minimum angular momenta for fragment production

Light charged particle emission in40Ar induced reactions on68Zn at 14.6, 19.6 and 35 MeV/nucleon

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