Inclusive breakup calculations in angular momentum basis: Application to 
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Lei, Jin

doi:10.1103/physrevc.97.034628

Cited by 9 publications

(7 citation statements)

References 29 publications

(77 reference statements)

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“…( 2) accounts for all possible non-elastic processes which may take place in x − A scattering (that is, NEB), no matter how diverse or complicated they are. Recent applications of this DWBA version of the IAV model to deuteron [18,21,22], 6 Li [18,20], and 7 Li [23] induced reactions have shown a very good agreement with existing data. We note that, although a decomposition similar to Eq.…”

supporting

confidence: 61%

Puzzle of Complete Fusion Suppression in Weakly Bound Nuclei: A Trojan Horse Effect?

Lei

Moro

2019

Phys. Rev. Lett.

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Experimental studies of nuclear collisions involving light weakly-bound nuclei show a systematic suppression of the complete fusion cross section by ∼30% with respect to the expectation for tightly bound nuclei, at energies above the Coulomb barrier. Although it is widely accepted that the phenomenon is related to the weak binding of these nuclei, the origin of this suppression is not fully understood. In here, we present a novel approach that provides the complete fusion for weakly bound nuclei and relates its suppression to the competition between the different mechanisms contributing to the reaction cross section. The method is applied to the 6,7 Li+ 209 Bi reactions, where we find that the suppression of complete fusion is mostly caused by the flux associated with non-elastic breakup modes, such as the partial capture of the projectile (incomplete fusion), whereas the elastic breakup mode is found to play a minor role. Finally, we demonstrate that the large α yields observed in these reactions can be naturally explained as a consequence of a Trojan Horse mechanism.

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confidence: 61%

Puzzle of Complete Fusion Suppression in Weakly Bound Nuclei: A Trojan Horse Effect?

Lei

Moro

2019

Phys. Rev. Lett.

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“…These contributions, that we denote globally as nonelastic breakup (NEB), can be efficiently computed with the model proposed by Ichimura, Austern, Vincent (IAV) [70]. The IAV model has been recently revisited by several groups [71][72][73][74][75][76][77]. The model has been successfully applied to weakly bound projectiles induced reactions, such as for the exotic 11 Be projectile on 208 Pb target [39].…”

Section: Resultsmentioning

confidence: 99%

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Wang¹,

Yang²,

Moro³

et al. 2021

Phys. Rev. C

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Elastic scattering and breakup angular distributions of the weakly bound radioactive nucleus 8 B on a 208 Pb target at an incident energy of 238 MeV, which corresponds to four times the Coulomb barrier, have been measured at the HIRFL-RIBLL facility (Institute of Modern Physics, Lanzhou). The data have been analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalism. The measured and calculated elastic scattering angular distributions do not show any significant Coulomb rainbow suppression. The angular distribution for the breakup reaction was measured for the first time at this energy. The angular distribution of the 7 Be fragments could be reproduced considering elastic plus nonelastic breakup contributions, with the former evaluated with the CDCC calculations and the latter with the model of Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)]. The comparison of the breakup cross section of 8 B with that of 11 Be suggests that the Coulomb and centrifugal barriers encountered by the valence proton may suppress the breakup cross section.

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“…In this section, we briefly summarize the model of Ichimura, Austern, and Vincent (IAV), whose original derivation can be found in Refs. [29,43] and has been also recently revisited by several authors [30,31,33,34,35,36,37,41]. We outline here the main results of this model and refer the reader to these references for further details on their derivations.…”

Section: Iav Modelmentioning

confidence: 88%

“…In principle the IAV is the most accurate method on the market and it allows also the use of FSI potentials with energy dependent strengths [41]. It is also very successful in describing transfer to continuum at low energy [30,31,32,33,34]. At the moment it cannot deal with high number of partial waves, which means it cannot calculate breakup on heavy targets.…”

Section: Discussionmentioning

confidence: 99%

“…One of the fully quantum mechanical QM models of breakup, introduced by Ichimura-Austen-Vincent (IAV) [29], was originally complicated to understand from the formal point of view and also it was impossible to apply in a numerical calculation unless the projectile was small and the energy low, because computers at that time were not able to handle the large number of partial waves necessary for heavy-ion reactions at high or even intermediate energies. Recently this model has been revised by Jin Lei and Moro [30,31,32,33,34] and other groups [35,36,37] who have been able to implement it numerically and made several applications, still at low energy and for deuteron or α breakup.…”

Section: Introductionmentioning

confidence: 99%

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Models of breakup: a final state interaction problem. In memory of Mahir Hussein

bonaccorso,

Brink

2021

Preprint

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In this paper we discuss the evolution of breakup models from fully quantum mechanical, such as the Ichimura-Austern-Vincent model to semiclassical, to eikonal approximations following the insight on the mechanism first proposed by Hussein and McVoy (HM) for the presently called stripping term. In particular we concentrate on, and stress that, the correct implementation of a quantum mechanical model of breakup requires the use of energy dependent interactions and the energy averaging procedure is a key point to understand the difference among models. On the other hand using fixed energy potentials is one of the steps towards the high energy eikonal limit first proposed by HM. However the intermediate semiclassical transfer to the continuum model (STC) of Bonaccorso and Brink does use an energy dependent nucleon-target optical potential, while fixing the core-target interaction at the incident energy. The relationship between these methods is clarified.

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Inclusive breakup calculations in angular momentum basis: Application to Li7+Ni58

Cited by 9 publications

References 29 publications

Puzzle of Complete Fusion Suppression in Weakly Bound Nuclei: A Trojan Horse Effect?

Puzzle of Complete Fusion Suppression in Weakly Bound Nuclei: A Trojan Horse Effect?

Elastic scattering and breakup reactions of the proton drip-line nucleus B8 on Pb208 at 238 MeV

Models of breakup: a final state interaction problem. In memory of Mahir Hussein

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