Role of the diagonal and off-diagonal continuum–continuum couplings in the breakup of 8B and 19C on 58Ni and 208Pb targets

Mukeru, B.; Lekala, M. L.; Деникин, А. С.

doi:10.1016/j.nuclphysa.2014.12.007

Cited by 20 publications

(25 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mukeru, Lekala and Denikin [193] investigated the influence of diagonal (between the same bin states) and off-diagonal (between different bin states) continuum matrix-elements on the breakup cross section. They studied collisions of 8 B and 19 C projectiles with 58 Ni and 208 Pb targets.…”

Section: Recent Cdcc Calculations By Kucuk and Moromentioning

confidence: 99%

Recent developments in fusion and direct reactions with weakly bound nuclei

et al. 2015

View full text Add to dashboard Cite

Section: Recent Cdcc Calculations By Kucuk and Moromentioning

confidence: 99%

Recent developments in fusion and direct reactions with weakly bound nuclei

et al. 2015

View full text Add to dashboard Cite

“…To describe the elastic-scattering angular distributions and total reaction cross sections conventional optical-model with Woods-Saxon (WS) potentials or double-folding (DF) OPs calculations were performed. The effect of breakup on the elastic scattering was investigated for the weakly bound 8 B nucleus by performing continuum discretized coupled-channels (CDCC) calculations [28,29,30,31,32,33,34]. It was found that for the light 12 C target this effect is negligible for description of the elastic scattering data [28,31].…”

Section: Introductionmentioning

confidence: 99%

Probing the exotic structure of 8B by its elastic scattering and breakup reaction on nuclear targets

et al. 2017

View full text Add to dashboard Cite

Abstract. The structure of the exotic 8 B nucleus is studied by means of elastic scattering, as well as its breakup on nuclear targets. We present microscopic calculations of the optical potentials (OPs) and cross sections of elastic scattering of 8 B on 12 C, 58 Ni, and 208 Pb targets at energies 20 < E < 170 MeV. The density distributions of 8 B obtained within the variational Monte Carlo (VMC) model and the three-cluster model (3CM) are used to construct the potentials. The real part of the hybrid OP is calculated using the folding model with the direct and exchange terms included, while the imaginary part is obtained on the base of the high-energy approximation (HEA) and also taken to be equal to the microscopic real part of the OP. In this model the only free parameters are the depths of the real and imaginary parts of OP obtained by fitting the elastic scattering experimental data. It is found a dependence of their values on the model density of 8 B. In addition, cluster model, in which 8

show abstract

“…6, considering the different binding energies. The CF cross sections presented here were calculated by using (13), with the ICF cross section being the difference between the TF and CF cross sections, as given by (14). One notices in this figure that, the TF and ICF cross sections are dependent on the projectile ground state binding energy, particularly for incident energies below and around the Coulomb barrier, whereas the CF cross section exhibits an insignificant dependence on the binding energy.…”

Section: Resultsmentioning

confidence: 99%

“…TF . (14) In the case of a neutron-halo projectile where the core nucleus contains the whole charge of the projectile, and provided the core-neutron correlations are negligible, the complete fusion cross section can be obtained from (12) by letting W nt = 0. This procedure of switching off the imaginary part of one of the projectile fragments has been adopted in various works, such as in Ref.…”

Section: Model Formalismmentioning

confidence: 99%

“…Various theoretical approaches have been proposed to study fusion processes of weakly bound systems. The continuum discretized coupled-channel (CDCC) method [12] is being the most popular approach as it effectively takes into account couplings between different continuum states of the projectile, which are known to play an important role in the breakup of loosely bound nuclei (for instance, for applications of the CDCC method, see [13,14] and references therein). Within CDCC calculations, interesting scaling laws for Coulomb and nuclear breakup cross section were obtained by Hussein et al [15], comparing cross section results for weakly bound projectiles on different targets at near Coulomb barrier colliding energies.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Fusion Cross Sections in the 9Be Projectile Breakup on Different Target Nuclei

Mukeru

Tomio

2020

Braz J Phys

Self Cite

View full text Add to dashboard Cite

We present a theoretical study of total fusion (TF), complete fusion (CF), and incomplete fusion (ICF) cross sections in the breakup of 9 Be (described as n− 8 Be) projectile on 124 Sn, 144 Sm and 208 Pb target nuclei. We use the continuum discretized coupled-channel formalism together with a sum-rule model, by extending an approach outlined in Mukeru et al. (Nucl. Phys. A 996:121700, 2020) to another weakly bound projectile in different targets. The applicability of the model to incident energies below and around the Coulomb barrier is verified, being confirmed for all three reactions an empirical energydependent cutoff angular momentum expression. We show that the TF and ICF cross sections are strongly dependent on the projectile binding energy ε b , whereas the CF is weakly affected by that. Despite this weak dependence, the CF contribution to the TF cross section becomes more suppressed by decreasing ε b. The dependence of the ICF probability on the breakup threshold is also highlighted.

show abstract

Role of the diagonal and off-diagonal continuum–continuum couplings in the breakup of 8B and 19C on 58Ni and 208Pb targets

Cited by 20 publications

References 22 publications

Recent developments in fusion and direct reactions with weakly bound nuclei

Recent developments in fusion and direct reactions with weakly bound nuclei

Probing the exotic structure of 8B by its elastic scattering and breakup reaction on nuclear targets

Analysis of Fusion Cross Sections in the 9Be Projectile Breakup on Different Target Nuclei

Contact Info

Product

Resources

About