Fusion cross section for the weakly bound neutron systemBe11+Be10at energies below and near the Coulomb barrier

The radial sensitivity of the elastic scattering of the weakly-bound 6 Li and halo 6 He nuclei on medium-mass 64 Zn target and heavy target 208 Pb is examined around the Coulomb barrier energies. We present that very good agreement between theoretical and experimental results have been obtained with small χ2/N values. The fusion cross-section and volume integrals of the potentials have been deduced from the theoretical calculations for all studied systems at relevant energies. We have also analyzed the elastic scattering of the 6 He +208 Pb system at E lab = 14, 16, 18, 22, 27 MeV in order to investigate whether there is a dispersion relation between the real and imaginary parts of the optical potential.

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Simultaneous optical model analyses of elastic scattering, breakup, and fusion cross section data for the6He+209Bisystem at near-Coulomb-barrier energies

Physical Review C ◽

10.1103/physrevc.65.044616 ◽

2002 ◽

Vol 65 (4) ◽

Cited By ~ 27

Author(s):

B. T. Kim ◽

W. Y. So ◽

S. W. Hong ◽

T. Udagawa

Keyword(s):

Elastic Scattering ◽

Cross Section ◽

Coulomb Barrier ◽

Optical Model ◽

Fusion Cross Section ◽

Cross Section Data ◽

Section Data

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How does the break-up of weakly bound nuclei influence the fusion cross section?

Nuclear Physics A ◽

10.1016/j.nuclphysa.2004.01.042 ◽

2004 ◽

Vol 734 ◽

pp. 233-236 ◽

Cited By ~ 4

Author(s):

P.R.S. Gomes ◽

J. Lubian ◽

R.M. Anjos

Keyword(s):

Cross Section ◽

Fusion Cross Section ◽

Weakly Bound ◽

Break Up

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FOUR-BODY CONTINUUM-DISCRETIZED COUPLED-CHANNEL CALCULATIONS APPLIED TO 6He REACTIONS AROUND THE COULOMB BARRIER

International Journal of Modern Physics E ◽

10.1142/s0218301311019039 ◽

2011 ◽

Vol 20 (04) ◽

pp. 947-952 ◽

Cited By ~ 5

Author(s):

M. RODRÍGUEZ-GALLARDO ◽

A. M. MORO

Keyword(s):

Harmonic Oscillator ◽

Cross Section ◽

Coulomb Barrier ◽

Elastic Cross Section ◽

Body System ◽

Weakly Bound ◽

Discretization Methods ◽

Coupled Channels ◽

Three Body ◽

Coupled Channel

The scattering of a weakly bound three-body system by a target is studied within the four-body continuum-discretized coupled-channels (4b-CDCC) framework. Two different methods, the transformed harmonic oscillator (THO) method and the binning procedure, are used for discretizing the three-body continuum. The formalism is applied to different reactions induced by the Borromean nucleus 6 He at energies around the Coulomb barrier: 6 He +64 Zn at 13.6 MeV, 6 He +120 Sn at 17.4 MeV, and 6 He +208 Pb at 22 MeV. Elastic cross section distributions are presented for these reactions comparing both discretization methods, THO and binning, as the mass of the target increases.

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NEAR BARRIER REACTIONS INDUCED BY WEAKLY BOUND CLUSTER NUCLEI

International Journal of Modern Physics E ◽

10.1142/s0218301311019015 ◽

2011 ◽

Vol 20 (04) ◽

pp. 938-942 ◽

Cited By ~ 6

Author(s):

YU. E. PENIONZHKEVICH

Keyword(s):

Statistical Model ◽

Cross Section ◽

Coulomb Barrier ◽

Cluster Structure ◽

Transfer Reactions ◽

Complete Fusion ◽

Neutron Transfer ◽

Weakly Bound ◽

Deuteron Transfer ◽

Nuclear Cluster

Experimental excitation functions are presented for complete fusion and transfer reactions in the interaction of 6 He and 6,8,9 Li with 206 Pb , 209 Bi , and nat Pt targets. The data on fusion in the 6 He -induced reactions at energies close to the Coulomb barrier differ from predictions within the framework of the statistical model for compound nucleus decay. For these exit channels a strong enhancement has been observed. Enhancement of the cross section for neutron transfer (with the 6 He and 8,9 Li beams) and deuteron transfer (with the 6 Li beam) reactions is observed at deep sub-barrier energies. The results are discussed from the viewpoint of how the nuclear cluster structure influences the probability of interaction at near-barrier energies.

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Understanding the fusion cross section among light nuclei around the Coulomb barrier

EPJ Web of Conferences ◽

10.1051/epjconf/201716300012 ◽

2017 ◽

Vol 163 ◽

pp. 00012

Author(s):

Antonio Del Zoppo ◽

Marco La Cognata

Keyword(s):

Cross Section ◽

Coulomb Barrier ◽

Fusion Cross Section ◽

Light Nuclei

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REACTION MECHANISMS IN COLLISIONS INDUCED BY HALO NUCLEI AROUND THE COULOMB BARRIER

International Journal of Modern Physics E ◽

10.1142/s0218301311018988 ◽

2011 ◽

Vol 20 (04) ◽

pp. 923-928

Author(s):

PIERPAOLO FIGUERA

Keyword(s):

Cross Section ◽

Coulomb Barrier ◽

Reaction Dynamics ◽

Fusion Cross Section ◽

Reaction Cross ◽

Halo Nuclei ◽

Total Reaction Cross Section ◽

Complete Agreement ◽

Halo Structure ◽

Direct Reactions

The peculiar structure of the halo nuclei is expected to strongly influence the reaction dynamics at energies around the Coulomb barrier . In this paper we will summarize the main experimental results obtained by different authors on the above topic. Our recent results concerning the study of the collisions 9,10,11 Be +64 Zn and 4,6 He +64 Zn will be discussed more in detail. It is observed that the total reaction cross section with halo nuclei is dominated by direct reactions. A complete agreement on the effects of the halo structure on the fusion cross section is not yet reached by different authors.

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Influence of the deformation and orientation on the interaction potential of the 28Si+28Si system and its fusion process

International Journal of Modern Physics E ◽

10.1142/s0218301319500095 ◽

2019 ◽

Vol 28 (01n02) ◽

pp. 1950009

Author(s):

W. M. Seif ◽

M. Ismail ◽

I. A. M. Abdul-Magead ◽

F. A. Fareed

Keyword(s):

Cross Section ◽

Interaction Potential ◽

Coulomb Barrier ◽

Fusion Cross Section ◽

Nucleon Nucleon ◽

Mass Separation ◽

Fusion Process ◽

Orientation Behavior ◽

Deformed Nuclei ◽

Double Folding

We investigated the orientation behavior of the interaction potential between highly-deformed oblate [Formula: see text]Si nuclei and its influences on the fusion process. The deformed–deformed potential is calculated using the double-folding model based on the realistic M3Y-Reid nucleon–nucleon interaction. We found that the Coulomb barrier parameters and the sub-barrier fusion data strongly depend on the polar orientation angles of the involved deformed nuclei, with a rather less dependence on the azimuthal angles. For interacting oblate nuclei, the elongated configuration corresponding to the lowest Coulomb barrier is obtained at orthogonal polar orientations, while the hexadecapole deformation determines the compact configuration obtained at nonzero polar orientations. The orientation behavior of the Coulomb barrier radius (height and curvature) consistently follow (inversely reflex) the orientation variation of the sum of the half-density radii of the two deformed nuclei, along their centers-of-mass separation vector. The deformations of the colliding nuclei increase their fusion cross-section at sub- and around-barrier energies. The calculations based on the parabolic barrier approximation overestimate the sub-barrier cross-section. The coupled channels calculations with couplings up to the 2[Formula: see text] and 4[Formula: see text] excitation states of [Formula: see text]Si nuclei are needed to reproduce the [Formula: see text] fusion cross-section, and the corresponding logarithmic slope and barrier distribution, over the full energy region.

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