Generation of a repulsive dynamic polarization potential by transfer couplings

Keeley, N.; Alamanos, N.; Rusek, K.; Kemper, K. W.

doi:10.1103/physrevc.71.014611

Cited by 31 publications

(58 citation statements)

References 37 publications

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“…The elastic scattering data available around Coulomb barrier have been utilized for these investigations. Two different cluster models of 9 Be, namely, 5 He+ 4 He and 8 Be+n have been investigated. CDCC (breakup) calculations for both the models and CDCC-CRC calculations for the breakup plus one neutron transfer in the 8 Be+n model have been performed.…”

Section: Discussionmentioning

confidence: 99%

“…From these figures, it is again evident that the inclusion of transfer couplings reduces the strength of real DPPs. The real DPP for the lighter system 9 Be+ 28 Si, is found to be repulsive while for the 9 Be+ 144 Sm system it is attractive at all energies. The attractive DPP in the latter case implies that a usual threshold anomaly could be present for the 9 Be+ 144 Sm system, i.e.…”

Section: B Dynamic Polarisation Potential (Dpp)mentioning

confidence: 91%

“…The attractive nature of the real part of DPP observed in the case of 9 Be+ 144 Sm and 9 Be+ 64 Zn systems is slightly reduced due to the inclusion of transfer couplings (left part of Figs. 5, 6).…”

Section: B Dynamic Polarisation Potential (Dpp)mentioning

confidence: 99%

“…Separate g.s. wave functions are obtained for the L = 0 and L = 2 components by adjusting the binding potentials of 5 He + 4 He configuration to reproduce the experimental binding energy of 9 Be. While the deformation in the g.s.…”

Section: Introductionmentioning

confidence: 99%

“…The final CDCC calculations are performed by including the non-resonant continuum and the resonance states. The cluster folding (core-target and valence-target) potentials required in CDCC calculations for constructing 9 Be + target interaction potential are taken from Refs. [21,[24][25][26][27][28][29] as given in Table I.…”

Section: Introductionmentioning

confidence: 99%

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Exploring the breakup and transfer coupling effects in9Be elastic scattering

et al. 2013

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Section: Discussionmentioning

confidence: 99%

Section: B Dynamic Polarisation Potential (Dpp)mentioning

confidence: 91%

Section: B Dynamic Polarisation Potential (Dpp)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring the breakup and transfer coupling effects in9Be elastic scattering

et al. 2013

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Inelastic p9Be scattering and halo-structure of excited states of 9Be

Ibraeva

Zhusupov

Dzhazairov-Kakhramanov

et al. 2015

Nuclear Physics A

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The calculation of differential cross section of inelastic p 9 Be scattering (to the levels J π = 1/2 + + , 3/2 ) was made in the framework of the Glauber diffraction theory. We have used the wave function of 9 Be in the ground and excited states in the threebody 2αn model. Expansion in series by gaussoids of the wave function of 9 Be and presentation of the Glauber's operator Ω in the form, conjugated with three-body wave function. It allows us to analytically calculate the matrix elements of inelastic scattering, taking into account all of the multiplicities of scattering and rescattering on clusters and nucleon, that are the components of 9 Be. The drawn up profiles of excited state functions allow us to make conclusion on their extended neutron distribution. The differential cross section with the wave function in model 1 (with the αα-Ali-Bodmer potential) is in a good agreement with available experimental data at E = 180 MeV.Keywords: Glauber diffraction theory; three-body cluster model; differential cross section, multiple scattering. PACS Number(s): 21.45.+v, 21.60.Gx, 24.10.Ht, 25.40.Cm. IntroductionNew stimulus for the research on weakly bound nuclei was the discovery of the exotic structure (halo and skin) of the series of unstable neutron-and proton-rich isotopes. The measurement of elastic scattering and reactions (breakup of light nucleus in the field of heavy one, stripping/transfer of weakly bound nucleon or cluster) in experiments involving such nuclei, indicate that these processes offer broad opportunities to understand the underlying cluster structure effects.9 Ве is a stable nucleus, strongly deformed (quadrupole moment Q = 52.88(38) mb) [1] and the weakly bound in 9 8 9Ве → Ве + n (ε = 1.67 MeV) [1] and Ве → α + α + n (ε = 1.57 MeV) [1] channels, which is a direct indication of its three-body α+α+n structure. The wave functions (WFs) taking into account this fact, calculated in 2αn model [2−5], provide a good description of its static observables (〈r 2 1/2 〉 , Q, μ), electromagnetic form factors and characteristics of the elastic π-, K-and p-9 Ве scattering [5−8].This nucleus − is a Borromian nucleus, because within the three-body 2αn picture of 9 Be there are no two components that could form a bound system, as in the case of 6 11 He and Li. Although, the value of the root mean square (rms) radius (〈r 2 1/2 〉 = 2.45(1) fm) [1] does not indicate the halo structure in this nucleus in its ground state, but in excited states J π = 1/2 + , 3/2 + the rms radii are greater: 2.83 fm and 2.98 fm, respectively. It seems that being excited, the nucleus increases in size and changes his structure to halo. As it is shown below (under review of

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