Formation of light particles in nucleus-nucleus collisions at low energies

Zagrebaev, V. I.; Penionzhkevich, Yu. É.

doi:10.1016/0146-6410(95)00047-m

Cited by 22 publications

(6 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interaction of two heavy atomic nuclei may be accompanied by emission of alpha particles. The cross section of alpha particle production may be very large and even comparable to the total reaction cross section [1][2][3]. The study of energy spectra of alpha particles at different angles showed that there is a significant increase in the yield of high-energy alpha particles compared to that expected from calculations within the statistical model of compound nucleus decay [4].…”

Section: Introductionmentioning

confidence: 96%

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets

Penionzhkevich¹,

Самарин²,

Lukyanov³

et al. 2022

Chinese Phys. C

View full text Add to dashboard Cite

The results of experiments on measuring the energy spectra of alpha particles in reactions with heavy ions are presented. The measurements were performed using the high-resolution magnetic analyzer MAVR with beams of 48Ca (280 MeV) and 56Fe (320 and 400 MeV) on 181Ta and 238U targets at an angle of 0°. A strong dependence of the double differential cross sections for production of alpha particles on the atomic number of the target nucleus was observed, which indicates that fast alpha particles are mainly emitted from the target nucleus; this conclusion was also confirmed by calculations within the time-dependent Schrödinger equation approach. An analysis of the obtained experimental data was carried out within the model of moving sources modified to consider the kinematic limits for two-body and three-body exit channels.

show abstract

Section: Introductionmentioning

confidence: 96%

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets

Penionzhkevich¹,

Самарин²,

Lukyanov³

et al. 2022

Chinese Phys. C

View full text Add to dashboard Cite

show abstract

“…The first experimental evidence of ICF reactions was given by Britt and Quinton [1], who observed the break-up of the incident projectiles like 12 C, 14 N and 16 O into alpha clusters in an interaction with the surface of the target nucleus at bombarding energies ≈10.5 MeV/nucleon. Subsequently, Galin et al [2] also observed the break-up of projectile and called such reactions, leading to the emission of "fast" alpha particles, as 'ICF reaction' or 'break-up fusion reaction'.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Target Deformation on Incomplete Fusion Dynamics

Singh

Ali²,

Ansari

et al. 2015

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract.To investigate the role of target deformation on incomplete fusion dynamics, a particle-gamma coincidence experiment has been performed at Inter University Accelerator Centre, New Delhi. Spin distributions for various evaporation residues populated via complete and incomplete fusion of 16 O with 124 Sn at 6.3MeV/nucleon have been measured. Experimentally measured spin distributions of the residues produced as incomplete fusion products associated with fast α and 2α-emission channels observed in forward cone are found to be distinctly different from those of the residues produced as complete fusion products. The mean value of input angular momentum J 0 for evaporation residues produced through xn channels (complete fusion products) is found to be J 0 ≈ 7ħ, while the mean value of input angular momentum J 0 for the residues produced through direct αxn and 2αxn channels (incomplete fusion products) in forward cone, are found to be J 0 ≈ 9ħ and ≈ 12 ħ respectively for 16 O + 124 Sn (spherical) system [7]. The mean value of input angular momentum J 0 for the system 16 O + 169 Tm (deformed) reported in ref. [8], are found to be ≈10ħ for xn-channels (complete fusion products) and for direct αxn and 2αxn channels (incomplete fusion products) the value of J 0 approaches to ≈ 13ħ and ≈16ħ, respectively. The mean values of the input angular momentum observed for xn (complete fusion products), αxn and 2αxn (incomplete fusion products) in 16 O + 124 Sn (spherical) system are smaller than that of the mean values of the input angular momentum observed for xn (complete fusion products), αxn and 2αxn (incomplete fusion products) in 16 O + 169 Tm (deformed) system. The comparison of data inferred that the mean values of the input angular momentum are smaller in case of spherical target than that of deformed target at same projectile energy of 16 O-ion beam. It means that the target deformation affect the incomplete fusion dynamics.

show abstract

“…Among these in particular are the models of moving sources [7], Fermi-jet [8,9,10], dissipative break-up and massive transfer [11] etc. A comprehensive survey of experimental and theoretical works relating to this problem is given in [12]. Applying these approaches, the authors have succeeded in qualitatively describing the energy and angular dependencies of the spectra of emitted light particles as well as revealing some production mechanisms for them.…”

Section: Introductionmentioning

confidence: 99%

New mechanism for the production of extremely fast light particles in heavy-ion collisions in the fermi energy domain

Деникин¹,

Zagrebaev

2003

Phys. Atom. Nuclei

View full text Add to dashboard Cite

Employing a four-body classical model, various mechanisms responsible for the production of fast light particles in heavy ion collisions at low and intermediate energies have been studied. It has been shown that at energies lower than 50 A MeV, light particles of velocities of more than two times higher than the projectile velocities are produced due to the acceleration of the target light-particles by the mean field of the incident nucleus. It has also been shown that precision experimental reaction research in normal and inverse kinematics is likely to provide vital information about which mechanism is dominant in the production of fast light particles.

show abstract

Formation of light particles in nucleus-nucleus collisions at low energies

Cited by 22 publications

References 76 publications

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets

Effect of the Target Deformation on Incomplete Fusion Dynamics

New mechanism for the production of extremely fast light particles in heavy-ion collisions in the fermi energy domain

Contact Info

Product

Resources

About

Formation of light particles in nucleus-nucleus collisions at low energies

Cited by 22 publications

References 76 publications

Emission of high-energy alpha particles in nuclear reactions of 48Ca and 56Fe ions on 181Ta and 238U targets

Emission of high-energy alpha particles in nuclear reactions of 48Ca and 56Fe ions on 181Ta and 238U targets

Effect of the Target Deformation on Incomplete Fusion Dynamics

New mechanism for the production of extremely fast light particles in heavy-ion collisions in the fermi energy domain

Contact Info

Product

Resources

About

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets

Emission of high-energy alpha particles in nuclear reactions of ⁴⁸Ca and ⁵⁶Fe ions on ¹⁸¹Ta and ²³⁸U targets