Study of the 7Be(p, γ)8B and 7Li(n, γ)8Li capture reactions using the shell model embedded in the continuum

Bennaceur, K.; Nowacki, F.; Okołowicz, J.; Płoszajczak, M.

doi:10.1016/s0375-9474(99)00133-5

Cited by 98 publications

(145 citation statements)

References 55 publications

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“…The E2 strength extracted from the inclusive breakup measurement [12] is a factor of 10 to 100 larger than the upper limits reported in other experimental studies [7,9]. However, it is only slightly smaller than or in good agreement with recent theoretical calculations of E2 strength [13,[16][17][18][19], and is consistent with the measurement of [20]. That the extracted experimental value should be somewhat smaller than the theoretical values is consistent with the idea that first-order perturbation theory overestimates the E2 contribution to the cross section [13].…”

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confidence: 72%

S17(0)Determined from the Coulomb Breakup of 83 MeV/Nucleon<

et al. 2001

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S 17 (0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8 B A kinematically complete measurement was made of the Coulomb dissociation of 8 B nuclei on a Pb target at 83 MeV/nucleon. The cross section was measured at low relative energies in order to infer the astrophysical S factor for the 7 Be(p,γ) 8 B reaction. A first-order perturbation theory analysis of the reaction dynamics including E1, E2, and M 1 transitions was employed to extract the E1 strength relevant to neutrino-producing reactions in the solar interior. By fitting the measured cross section from E rel = 130 keV to 400 keV, we find S17(0) = 17.8 +1.4 −1.2 eV b.25.70. De, 26.20.+f, 26.65.+t, 27.20.+n

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confidence: 72%

S17(0)Determined from the Coulomb Breakup of 83 MeV/Nucleon<

et al. 2001

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“…In addition to the models described in the experimental papers [12,15,16], many theoretical calculations have described the available data (see for example [41][42][43][44][45][46][47][48]). …”

Section: Comparison To Theorymentioning

confidence: 99%

Determining the7Li(n,γ) cross section via Coulomb dissociation of8Li

et al. 2013

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The applicability of Coulomb dissociation reactions to determine the cross section for the inverse neutron capture reaction was explored using the reaction 8 Li(γ,n) 7 Li. A 69.5 MeV/nucleon 8 Li beam was incident on a Pb target, and the outgoing neutron and 7 Li nucleus were measured in coincidence. The deduced (n,γ) excitation function is consistent with data for the direct capture reaction 7 Li(n,γ) 8 Li and with low-energy effective field theory calculations.

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“…Here, the Hilbert space is divided into orthogonal subspaces Q icont containing different numbers i cont (i cont = 0, 1, · · · ) of particles in the scattering continuum. An OQS description of Q 0 space includes couplings to the environment of decay channels through the energydependent effective Hamiltonian [30][31][32]:…”

Section: Continuum Shell Model Description Of Ancs In Mirror Sysmentioning

confidence: 99%

Asymptotic normalization coefficients and continuum coupling in mirror nuclei

et al. 2012

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Background: An asymptotic normalization coefficient (ANC) characterizes the asymptotic form of a one-nucleon overlap integral required for description of nucleon-removal reactions.Purpose: We investigate the impact of the particle continuum on proton and neutron ANCs for mirror systems from p-and sd-shell regions. Method:We use the real-energy and complex-energy continuum shell model approaches.Results: We studied the general structure of the single-particle ANCs as a function of the binding energy and orbital angular momentum. We computed ANCs in mirror nuclei for different physical situations, including capture reactions to weakly-bound and unbound states. Conclusions:We demonstrated that the single-particle ANCs exhibit generic behavior that is different for charged and neutral particles. We verified the previously proposed relation [1] between proton and neutron mirror ANCs. We find minor modifications if the spectroscopic strength is either localized in a single state or broadly distributed. For cases when several states couple strongly to the decay channel, these modifications may reach 30%.

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Study of the 7Be(p, γ)8B and 7Li(n, γ)8Li capture reactions using the shell model embedded in the continuum

Cited by 98 publications

References 55 publications

S17(0)Determined from the Coulomb Breakup of 83 MeV/Nucleon<

S17(0)Determined from the Coulomb Breakup of 83 MeV/Nucleon<

Determining the7Li(n,γ) cross section via Coulomb dissociation of8Li

Asymptotic normalization coefficients and continuum coupling in mirror nuclei

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