Alpha-particle energy spectra measured at forward angles in heavy-ion induced reactions

Borcea, C.; Gierlik, É.; Kalpakchieva, R.; Oganessian, Yu. Ts.; Penionzhkevich, Yu. É.

doi:10.1016/0375-9474(81)90447-4

Cited by 19 publications

(13 citation statements)

References 8 publications

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“…This bombarding energy (E x= 109 MeV) seemed interesting since for a similar system at a similar bombarding energy (22Ne + 197Au, E/A = 8.07 MeV/u) a strong component of forward -peaked high -energetic e particles has been observed by Borcea et al [18].…”

Section: E/a = 86 Mev/umentioning

confidence: 75%

Investigation of the velocity distribution of evaporation residues produced in20Ne+197Au reactions atE/A=5.7?11.4 MeV/u

Heßberger¹,

Ninov²,

Spoerel

1991

Z. Physik A - Hadrons and Nuclei

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Section: E/a = 86 Mev/umentioning

confidence: 75%

Investigation of the velocity distribution of evaporation residues produced in20Ne+197Au reactions atE/A=5.7?11.4 MeV/u

Heßberger¹,

Ninov²,

Spoerel

1991

Z. Physik A - Hadrons and Nuclei

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“…3. The observation of high energetic e-particles under 0 ~ in a bombardment of lSlTa with 4~ at 5.5 MeV/u, with cross-sections that exceeded the predictions of statistical model calculations [13].…”

Section: Introductionmentioning

confidence: 79%

Evaporation residues from heavy (Z=90?93) compound nuclei at excitation energies of Ex ? (75?110) MeV

Heßberger

Ninov

Ackermann

1992

Z. Physik A - Hadrons and Nuclei

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Evaporation residue cross sections have been measured in reactions 4~ + 14~ 181Ta, 182W, 184W~ natRe at bombarding energies E/A= (5.5-6.3)MeV/u. The cross sections do not decrease with increasing nuclear temperature, as expected from statistical model calculations. Rather they are found to be roughly constant. This behavior is predominantly affected by an enhanced emission probability of charged particles. Influence of a 'fission delay', which is expected at E • > 60 MeV from measurements of pre-and post-scission neutrons, on the xncross sections has been observed at excitation energies E• 90 MeV. The possibility to produce transfermium isotopes in 'hot fusion' reactions has been investigated in an irradiation of 232Th with 4~ Upper limits of 10 nb for evaporation residues were obtained.

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“…This work is experimentally motivated: the observation of energetic α particles at forward angles in reactions induced by heavy ions at Coulomb energies [12][13][14][15] indicates the existence of a reaction mechanism in which, following projectile breakup, the α particle carries away most of the bombarding energy of the projectile, leaving the other remaining projectile fragment to be captured by the target resulting in a colder fusion product than would typically be achieved via the CF mechanism (with higher excitation energy). The low excitation energy of these cold products from ICF reactions results in both a higher survivability against fission and fewer neutrons evaporated, indicating that this mechanism could be a successful way of producing relatively stable SHE isotopes.…”

Section: Introductionmentioning

confidence: 99%

Modelling incomplete fusion dynamics of complex nuclei at Coulomb energies

Bossche

Díaz-Torres

2019

Phys. Rev. C

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The incomplete fusion dynamics of 20 10 Ne + 208 82 Pb collisions at energies above the Coulomb barrier are investigated using a novel semiclassical dynamical model, which combines a classical trajectory model with stochastic breakup, as implemented in the PLATYPUS code, with a dynamical fragmentation theory treatment of two-body clusterization and decay of a projectile. A finite-difference method solution to the time-independent Schrödinger equation in the charge asymmetry coordinate is employed by way of diagonalizing a tridiagonal Hamiltonian matrix with periodic boundary conditions. Results are compared with published experimental values to indicate the success of this new model, and next steps for its development are detailed.

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Alpha-particle energy spectra measured at forward angles in heavy-ion induced reactions

Cited by 19 publications

References 8 publications

Investigation of the velocity distribution of evaporation residues produced in20Ne+197Au reactions atE/A=5.7?11.4 MeV/u

Investigation of the velocity distribution of evaporation residues produced in20Ne+197Au reactions atE/A=5.7?11.4 MeV/u

Evaporation residues from heavy (Z=90?93) compound nuclei at excitation energies of Ex ? (75?110) MeV

Modelling incomplete fusion dynamics of complex nuclei at Coulomb energies

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