TFF (v.4.1): A Mathematica Notebook for the Calculation of One- and Two-Neutron Stripping and Pick-Up Nuclear Reactions

Fortunato, L.; Inci, I.; Lay, J. A.; Vitturi, A.

doi:10.3390/computation5030036

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The form factors for this one neutron transfer reaction were then computed in the prior representation (cf. Chapter 5 of [24]) using a modified version of the Transformed Form Factors (TFF) code [32]. It was seen that the form factors were quite extended owing to the weakly bound nature of the nuclei, reflecting their non-locality and long range of overlap of the wave functions.…”

Section: One-neutron Transfermentioning

confidence: 99%

Pairing enhancement in a two-neutron transfer process through the continuum

Singh¹,

Fortunato²,

Vitturi³

2022

Preprint

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Enhancement, due to constructive interference through the many possible reaction channels, occurs in two-neutron transfer reactions from a bound system A to a weakly-bound system (A+2), whenever the intermediate system is unbound and consists of a continuum with a resonant state. We elucidate this phenomenon in the case of 6 He, modeled as two neutrons in the orbitals of an intermediate 5 He nucleus, comparing the realistic case of an unbound (A+1) system with an artificially bound case. A properly modeled continuum in these calculations is found to be crucial and leads to significant enhancement due to pairing correlations.

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Section: One-neutron Transfermentioning

confidence: 99%

Pairing enhancement in a two-neutron transfer process through the continuum

Singh¹,

Fortunato²,

Vitturi³

2022

Preprint

Self Cite

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“…Ratio between the cross section to the ground state and to the first excited 0 + states of 112 Sn, 32 Mg, and 68 Ni were studied in [95] using (t,p), ( 18 O, 16 O), and ( 14 C, 12 C) reactions. The original calculations in [95] were done including only the simultaneous transfer of the neutrons in Zero Range Distorted Wave Born Approximation (DWBA) for (t,p), performed with DWUCK [96], and in second-order perturbation theory along a semiclassical trajectory for the heavier probes, done with the code TFF [97].…”

Section: Two-neutron Transfer Mechanismmentioning

confidence: 99%

An overview of the scientific contribution of Andrea Vitturi to nuclear physics

et al. 2020

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We give an account of the main achievements of the scientific career of Andrea Vitturi so far, that have recently been discussed during the workshop "Theoretical Nuclear Physics in Padova" on the occasion of his retirement from full professor at the University of Padova. He has oftentimes been the driving force behind numerous contributions to nuclear structure and nuclear reactions that are here reviewed: giant resonances, pairing correlations, collective modes, algebraic models, inelastic excitations, electromagnetic response, break-up and transfer reactions, coupled-channel formalism, clustering, subbarrier fusion processes, etc. Among these topics several inspirational works and ideas can be found that we would like to highlight. PACS. PACS-key discribing text of that key -PACS-key discribing text of that keyThis manuscript serves two scopes. On one hand, it is an account of some of the topics discussed in the recent workshop "Theoretical Nuclear Physics in Padova: a meeting in honor of Prof. Andrea Vitturi"[1] that was held in Padova on May 20 and 21 2019 on occasion of his retirement. On the other, the organizers and participants felt the duty to summarize in this review paper his extensive scientific production, beyond what was discussed at the meeting, because it spans a broad range of topics in low energy nuclear physics, trying to highlight several fruitful ideas and to shed new light on some less known papers that most certainly deserve further recognition.

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“…Following the same procedure while working in the prior-prior picture [12] and using a modified version of the Transfer Form Factors (TFF) code [13], we provide here the results for the probability contribution of each of the configurations in the basis, for three different scenarios. The naturally unbound case of 5 He is compared with two hypothetical cases, where the intermediate 5 He nucleus is considered bound by S n = 1 MeV and S n = 0.1 MeV.…”

Section: Introductionmentioning

confidence: 99%

The quantification of pairing interaction in a two-neutron transfer through the intermediary continuum

Singh,

Fortunato,

Vitturi

2023

J. Phys.: Conf. Ser.

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An unbound intermediate system (A+1) with the presence of a resonance, can aid in the pairing enhancement in a two-neutron transfer reaction from a bound system A to another bound system (A+2). This enhancement is a consequence of the constructive interference via the several reaction channels available in the (A+1) system. We test this feature through our study in 6He, modeled as two neutrons in the orbitals of an intermediate 5He nucleus. Weighing up the natural case of an unbound 5He with a hypothetically bound 5He, we find that the inclusion of a properly modeled continuum favours the pairing correlations leading to enhanced two-neutron transfer cross-sections.

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TFF (v.4.1): A Mathematica Notebook for the Calculation of One- and Two-Neutron Stripping and Pick-Up Nuclear Reactions

Cited by 5 publications

References 13 publications

Pairing enhancement in a two-neutron transfer process through the continuum

Pairing enhancement in a two-neutron transfer process through the continuum

An overview of the scientific contribution of Andrea Vitturi to nuclear physics

The quantification of pairing interaction in a two-neutron transfer through the intermediary continuum

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