Competition between direct and sequential two-neutron transfers in the 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">O</mml:mi><mml:mprescripts /><mml:none /><mml:mn>18</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi>Si</mml:mi><mml:mprescripts /><mml:none /><mml:mn>28</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>
 collision at 84 MeV

Cardozo, E. N.; Lubián, J.; Linares, R.; Cappuzzello, F.; Carbone, D.; Cavallaro, M.; Ferreira, J. L.; Gargano, A.; Paes, B.; Santagati, G.

doi:10.1103/physrevc.97.064611

Cited by 41 publications

(42 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The success of CRC-psdmod compared to the present data is consistent with analysis for the 2NT in the 28 Si( 18 O, 16 O) 30 Si, for which the experimental data were reproduced adopting the S 2 derived from the psdmod interaction for the Si isotopes [13]. In the analysis of the 1NT to 28 Si induced by ( 18 O, 17 O) reaction, the experimental data were reproduced better using the S 2 from the psdmwkpn interaction [12] instead.…”

Section: Theoretical Analysissupporting

confidence: 86%

“…Such heavier contaminants were not observed in the RBS analysis. Even though, in both cases the elastic scattering of 13 C would produce peaks at Q-values +4.1 and +4.5 MeV, respectively. For the inelastic (1NT); 3 -elastic peak 39 K; 4 -elastic peak 28 Si; 5 -possibly inelastic peak in 39 K 2.52 ; 6 -inelastic peak 28 Si 1.78 ; 7 -elastic peak 16 O and 12 C. Counts in the peak 1 were determined from the gaussian curve represented by the yellow curve.…”

Section: Methodsmentioning

confidence: 91%

“…Recently, analysis of the one-neutron (1NT) and two-neutron transfer (2NT) to 28 Si, induced by the ( 18 O, 17 O) [12] and ( 18 O, 16 O) [13] reactions respectively, have been reported.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of the one-neutron transfer in C13+Si28 at Elab<

et al. 2020

Self Cite

View full text Add to dashboard Cite

Background: Neutron transfer measurements for the 18 O + 28 Si system have shown that the experimental one-neutron and two-neutron transfer cross sections are well reproduced with spectroscopic amplitudes from two different shell model interactions for the Si isotopes: psdmod for the two-neutron transfer, and psdmwkpn for the one-neutron transfer.Purpose: The origin of this ambiguity can be related to a more complex mechanism in the one-neutron transfer that requires the unpairing of neutrons prior to its transfer in the ( 18 O, 17 O) reaction. Studying a nucleus where this characteristic is absent ( 13 C) should help to elucidate this question.Method: One-neutron transfer cross sections were measured for the 13 C + 28 Si at E lab = 30, and 34 MeV, and compared with coupled reaction channel calculations using spectroscopic amplitudes derived from the psdmod and psdmwkpn shell model interactions.Results: The spectroscopic amplitudes from the psdmod interaction for the relevant states in 29 Si provide a good description of the experimental data and the corresponding values agree with previous estimates obtained from the (d,p) reaction. Conclusions:The experimental data for the one-neutron transfer to 28 Si induced by ( 13 C, 12 C) reaction is well reproduced using spectroscopic amplitudes from the psdmod. * rlinares@id.uff.br 1

show abstract

Section: Theoretical Analysissupporting

confidence: 86%

Section: Methodsmentioning

confidence: 91%

See 1 more Smart Citation

Investigation of the one-neutron transfer in C13+Si28 at Elab<

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…For a long time, the approximations used to deal with the complex many-body aspects of the reactions led to the use of arbitrary scaling factors in the calculated cross sections in order to compare them with the experimental results [22,23], preventing the extraction of accurate nuclear structure information. With the advent of microscopic approaches based on DWBA and coupled-channels (CC) schemes with double-folding potentials and spectroscopic amplitudes derived from large-scale shell model (SM) or interacting boson model (IBM) [24], it was possible to give a satisfactory description of the measured cross sections [25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Analysis of two-nucleon transfer reactions in the Ne20+Cd116 system at 306 MeV

Carbone¹,

Ferreira²,

Calabrese³

et al. 2020

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

Background: Heavy-ion induced two-nucleon transfer reactions are powerful tools to reveal peculiar aspects of the atomic nucleus, such as pairing correlations, single-particle and collective degrees of freedom, and more. Also, these processes are in competition with the direct meson exchange in the double charge exchange reactions, which have recently attracted great interest due to their possible connection to neutrinoless double-β decay. In this framework, the exploration of two-nucleon transfer reactions in the 20 Ne + 116 Cd collision at energies above the Coulomb barrier is particularly relevant since the 116 Cd nucleus is a candidate for the double-β decay.Purpose: We want to analyze selected transitions to low-lying 0 + and 2 + states of the residual nuclei in the 116 Cd( 20 Ne, 22 Ne) 114 Cd two-neutron pickup and 116 Cd( 20 Ne, 18 O) 118 Sn two-proton stripping reactions at 306 MeV incident energy and determine the role of the couplings with inelastic transitions. Methods: We measured the excitation energy spectra and absolute cross sections for the two reactions using the MAGNEX large acceptance magnetic spectrometer to detect the ejectiles. We performed direct coupled reaction channels and sequential distorted wave Born approximation calculations using the double folding São Paulo potential to model the initial and final state interactions. The spectroscopic amplitudes for two-and singleparticle transitions were derived by different nuclear structure approaches: microscopic large-scale shell model, interacting boson model-2 and quasiparticle random phase approximation. Results:The calculations are able to reproduce the experimental cross sections for both two-neutron and twoproton transfer reactions. The role of couplings with the inelastic channels are found to be important in the two-proton transfer case. A competition between the direct and the sequential process is found in the reaction *

show abstract

“…Another alternative reaction was proposed in the Istituto Nazionale di Fisica Nucleare -Laboratori Nazionali del Sud (Italy) by considering the ( 18 O, 16 O) reaction, once the 18 O nucleus can be considered as composed by an inert core of 16 O and two valence neutrons. In this sense, some reactions were measured considering the 18 O nucleus as projectile at 84 MeV incident energy, and 12,13 C [1, 2], 16 O [3,4], 28 Si [5] and 64 Ni [6] as target to analyze the feasibility of the ( 18 O, 16 O) reaction as substitute of the (t,p) one, and then to investigate the role of the pairing correlation of both transferred neutrons in the transfer reaction cross sections obtained performing coupled reaction channel calculations [7]. The 12 C( 18 O, 16 O) 14 C reaction has experimentally shown, similarly to (t,p), the feasibility in populating the twoneutron configuration of the 14 C nucleus.…”

Section: Introductionmentioning

confidence: 99%

Role of correlations in two-neutron transfer reactions

et al. 2019

View full text Add to dashboard Cite

This work presents theoretical results compared with the experimental data for the two–neutron transfer angular distribution in which a beam of 18O nucleus, at 84 MeV incident energy, has collided onthe 13C, 28Si, and 64Ni targets. The two-neutron transfer in the 9Be(7Be,9Be)7Be reaction, at 23.1 MeV incident energy, was also analyzed. The main goal was to verify the relevance of the pairing correlation of the two transferred neutrons on the cross sections and to show its role when both neutrons are transferred to states with a low and high degree of collectivity.

show abstract

Competition between direct and sequential two-neutron transfers in the O18+Si28 collision at 84 MeV

Cited by 41 publications

References 43 publications

Investigation of the one-neutron transfer in C13+Si28 at Elab<

Investigation of the one-neutron transfer in C13+Si28 at Elab<

Analysis of two-nucleon transfer reactions in the Ne20+Cd116 system at 306 MeV

Role of correlations in two-neutron transfer reactions

Contact Info

Product

Resources

About