Comparison of electromagnetic and nuclear dissociation of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ne</mml:mi><mml:mprescripts /><mml:none /><mml:mn>17</mml:mn></mml:mmultiscripts></mml:math>

Wamers, F.; Marganiec, J.; Aksouh, F.; Aksyutina, Y.; Álvarez‐Pol, H.; Aumann, T.; Beceiro-Novo, S.; Bertulani, C. A.; Boretzky, K.; Borge, María José García; Chartier, M.; Chatillon, A.; Chulkov, L. V.; Cortina-Gil, D.; Emling, H.; Ershova, O.; Fraile, L. M.; Fynbo, H. O. U.; Galaviz, D.; Geißel, H.; Heil, M.; Hoffmann, D. H. H.; Hoffman, James M.; Johansson, H.; Jonson, B.; Karagiannis, C.; Kiselev, O.; Kratz, J. V.; Kulessa, R.; Kurz, N.; Langer, C.; Lantz, Mattias; Bleis, T. Le; Lehr, C.; Lemmon, R. C.; Litvinov, Yu. A.; Mahata, K.; Müntz, C.; Nilsson, T.; Nociforo, C.; Ott, W.; Panin, V.; Paschalis, S.; Perea, Á.; Plag, R.; Reifarth, R.; Richter, A.; Riisager, K.; Rodríguez–Tajes, C.; Rossi, D.; Savran, D.; Schrieder, G.; Simon, H.; Stroth, J.; Sümmerer, K.; Tengblad, O.; Typel, S.; Weick, H.; Wiescher, M.; Wimmer, Christian

doi:10.1103/physrevc.97.034612

Cited by 9 publications

(14 citation statements)

References 26 publications

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“…Publication [10] concentrated on the population of the low-energy resonant states of 17 Ne, while the broad hump at 3 − 6 MeV, which is interpreted as the SDM contribution in our present work, was discussed in Ref. [11]. The conclusion of [11] is that the 3 − 6 MeV hump is not consistent with any of the available theoretical E1 predictions.…”

Section: Comparison With Experimental Datamentioning

confidence: 58%

“…[11]. The conclusion of [11] is that the 3 − 6 MeV hump is not consistent with any of the available theoretical E1 predictions. Below we use the experimental data obtained in [10,11].…”

Section: Comparison With Experimental Datamentioning

confidence: 92%

“…The shape of the E1 strength function in 17 Ne is governed by the so-called soft dipole mode (SDM) existing in this nucleus. Properties of the SDM in the three-body systems were investigated in details in the Borromean 2n halo nuclei 6 He and 11 Li [8,9,and Refs. therein].…”

Section: Introductionmentioning

confidence: 99%

“…[7]. In the present paper we further elaborate on this problem using the recently available data on Coulomb dissociation of 17 Ne [10,11] on heavy (Pb) target. Our aim is to clarify which type of information should be necessary and sufficient for determination of the three-body non-resonant astrophysical rate from the experimental data.…”

Section: Introductionmentioning

confidence: 99%

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From Coulomb excitation cross sections to nonresonant astrophysical rates in three-body systems: The Ne17 case

et al. 2018

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Coulomb and nuclear dissociation of 17 Ne on light and heavy targets are studied theoretically. The dipole E1 strength function is determined in a broad energy range including energies of astrophysical interest. Dependence of the strength function on different parameters of the 17 Ne ground state structure and continuum dynamics is analyzed in a three-body model. The discovered dependence plays an important role for studies of the strength functions for the three-body E1 dissociation and radiative capture. The constraints on the [s 2 ]/[d 2 ] configuration mixing in 17 Ne and on pwave interaction in the 15 O+p channel are imposed based on experimental data for 17 Ne Coulomb dissociation on heavy target.

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Section: Comparison With Experimental Datamentioning

confidence: 58%

“…[11]. The conclusion of [11] is that the 3 − 6 MeV hump is not consistent with any of the available theoretical E1 predictions. Below we use the experimental data obtained in [10,11].…”

Section: Comparison With Experimental Datamentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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From Coulomb excitation cross sections to nonresonant astrophysical rates in three-body systems: The Ne17 case

et al. 2018

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“…A more advanced than in [11] structure model of 17 Ne was developed in [12]. This was taking into account core spin and provided accurate treatment of the excitation spectra in 16 F subsystem of 17 Ne. In the improved model, the width estimate for the 3/2 − state decay was reduced to Γ 2p = 4.1 × 10 −16 MeV.…”

Section: History Of the Questionmentioning

confidence: 99%

Validity of Quasi-classical Approaches to True Three-Body Decays

Sukhareva

Grigorenko

Kostyleva

et al. 2020

Recent Progress in Few-Body Physics

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Within the hyperspherical harmonics approach the three-body problem is reduced to a motion of one effective particle in a "strongly deformed" field, which is described in coupled-channel formalism. This method is especially suited to studies of phenomena characterized by genuine three-body dynamics, e.g. Borromean haloes and true three-body decays. The reduction of the hyperspherical equations set to a single-channel Schrödinger equation provides the basis for the use of the standard quasiclassical expression for calculations of widths for true three-body decays. We demonstrate that the quasiclassical approach by itself is quite precise in application to typical profiles of the three-body effective potentials. However, the reduction to single-channel formalism leads to significant overestimation of the two-proton width Γ 2p . This is demonstrated by the example of the 17 Ne first excited 3/2 − state decay, questioning, however, the applicability of such an approximation in general.

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