Origins of Incomplete Fusion Products and the Suppression of Complete Fusion in Reactions of 
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Cook, K. J.; Simpson, E. C.; Bezzina, L. T.; Dasgupta, M.; Hinde, David; Banerjee, K.; Berriman, Annette; Sengupta, C.

doi:10.1103/physrevlett.122.102501

Cited by 49 publications

(28 citation statements)

References 41 publications

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“…This suppression amounts up to ∼30% for these nuclei, is roughly independent of the target nucleus and is typically accompanied by significant yields of evaporation products compatible with the partial absorption * jinl@ohio.edu † moro@us.es of the projectile, also referred to as incomplete fusion, ICF. However, some recent experimental results [18] suggest that the ICF products are compatible with a direct, one-step mechanism, thus putting into question the BF picture.…”

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confidence: 99%

Unraveling the Reaction Mechanisms Leading to Partial Fusion of Weakly Bound Nuclei

Lei

Moro

2019

Phys. Rev. Lett.

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Collisions between complex nuclei may give rise to their total or partial fusion. The latter case is found experimentally to gain importance when one of the colliding nuclei is weakly bound. It has been commonly assumed that the partial fusion mechanism is a two-step process, whose first step is the dissociation of the weakly bound nucleus, followed by the capture of one of the fragments. To assess this interpretation, we present the first implementation of the three-body model of inclusive breakup proposed in the 1980s by Austern et al. [Phys. Rep. 154, 125 (1987)] that accounts for both the direct, one-step, partial fusion and the two-step mechanism proceeding via the projectile continuum states. Contrary to the widely assumed picture, we find that, at least for the investigated cases, the partial fusion is largely dominated by the direct capture from the projectile ground-state.

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confidence: 99%

Unraveling the Reaction Mechanisms Leading to Partial Fusion of Weakly Bound Nuclei

Lei

Moro

2019

Phys. Rev. Lett.

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“…It has been in heavy demand for measurements that complement other HIAF research programs and for detector characterisation and development. For example, γ-ray angular distributions were measured following (p,p ) excitation of nuclei such as 12 C, and 50,52 Cr, complementing electron spectroscopy measurements with the Super-e that aim to determine electric monopole (E0) transition strengths between shape-coexisting nuclear states. Quenching factors for dark matter detector characterisation have been measured using neutrons produced by 7 Li(p,n) 7 Be as a proxy for a neutral dark matter particle inducing a nuclear recoil in a scintillator detector [6].…”

Section: Line 4: General Purposementioning

confidence: 99%

“…For polonium isotopes, the dominant incomplete fusion product, only a small fraction can be explained by projectile breakup followed by capture: the dominant mechanism is triton cluster transfer. Suppression of complete fusion is therefore primarily a consequence of clustering in weakly bound nuclei rather than their breakup prior to reaching the fusion barrier [52].…”

Section: Line C: Cube and Balinmentioning

confidence: 99%

The Heavy Ion Accelerator Facility: Research Achievements and Aspirations

Stuchbery

2020

EPJ Web Conf.

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An overview of Australia’s Heavy Ion Accelerator Facility (HIAF) is presented, including a survey of the accelerator infrastructure and its capabilities, as well as the beam-line instrumentation. Some recent research achievements are highlighted. Accelerator upgrades and instrumentation developments in progress are described, along with some aspirations for the longer-term development of the Facility and its associated research programs.

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“…It should be pointed out that there are some dedicated efforts and improvements in the PLATYPUS model (e.g., by taking into account lifetimes associated with unbound states) for the study of 6,7 Li-induced reactions. Also, studies have revealed the importance of transfer-triggered breakup [16][17][18] and cluster transfer [19]. However, studies have also shown that prompt breakup of 9 Be occurs dominantly through an excited 8 Be nucleus [10].…”

Section: Comparison Of Data With Theoretical Predictions and Dismentioning

confidence: 99%

“…Apparently, for the CF suppression the underlying mechanism is complicated and controversial. It is also reported to be affected by other processes such as transfer-triggered breakup [16][17][18] and cluster transfer [19].…”

Section: Introductionmentioning

confidence: 99%

Fusion reaction studies for the Be9+Y89 system at above-barrier energies

Liu

Patel

et al. 2020

Phys. Rev. C

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Complete fusion (CF) cross section measurement for the weakly bound 9 Be projectile interacting with the intermediate mass target 89 Y has been extended to energies greater than the fusion barrier, by implementing off-line characteristic γ-ray detection techniques. The available experimental data for the 9 Be + 89 Y reaction system were compared with the theoretical predictions, using the PLATYPUS code that is based on a classical dynamical model. By introducing the breakup probability that deduced in the literature from the fitting of the experimental data, the model managed to reproduce the CF cross sections of 9 Be beam with targets of different atomic mass. Through the study, it is revealed that the extended CF excitation function for the 9 Be + 89 Y system is consistent with the systematical behavior that the prompt-breakup probability at above-barrier energies is roughly independent of the target in the reactions induced by the same weakly bound projectiles.

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Origins of Incomplete Fusion Products and the Suppression of Complete Fusion in Reactions of Li7

Cited by 49 publications

References 41 publications

Unraveling the Reaction Mechanisms Leading to Partial Fusion of Weakly Bound Nuclei

Unraveling the Reaction Mechanisms Leading to Partial Fusion of Weakly Bound Nuclei

The Heavy Ion Accelerator Facility: Research Achievements and Aspirations

Fusion reaction studies for the Be9+Y89 system at above-barrier energies

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