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

Abstract

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.

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

“…In our work [2], we only mention that our calculation contains resonant and nonresonant capture treated on the same footing. Therefore the statement by Parfenova et al [1] about the resonant rate being not important while referring to our work seems to be an improper interpretation. On the contrary, what is demonstrated in Ref.…”

“…In Ref. [1], Parfenova et al also claim that the B(E 1) distribution from Ref. [2] does not reproduce the experimental data on 17 Ne + 208 Pb dissociation at 500 MeV/u measured at GSI [4,5].…”

“…In this context, in Ref. [1], Parfenova et al state that the results for the reaction rate and the conclusions in Ref. [2] are wrong.…”

“…In Ref. [1] it is said in the first page that "an opinion was expressed in Ref. [2] that the resonance rate is not important for 15 O(2p, γ ) 17 Ne, because it is negligibly small compared to the nonresonant contribution to the rate.…”

“…In Ref. [1], they show in Fig. 11 the comparison of the experimental data together with different B(E 1) theoretical distributions converted to Coulomb dissociation by Eq.…”