Quenching of single-particle strength from direct reactions with stable and rare-isotope beams

Aumann, T.; Barbieri, C.; Bazin, D.; Bertulani, C. A.; Bonaccorso, A.; Dickhoff, W. H.; Gade, A.; Gómez-Ramos, M.; Kay, B. P.; Moro, A. M.; Nakamura, Takashi; Obertelli, A.; Ogata, Kazuyuki; Paschalis, S.; Uesaka, T.

doi:10.1016/j.ppnp.2021.103847

Cited by 100 publications

(71 citation statements)

References 321 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surprisingly, R S decreases with the binding energy of the knocked-out nucleon: R S ≈ 1 for the removal of weaklybound nucleons, as in halo nuclei and R S ≈ 0.3 in the knockout of strongly-bound nucleons [17][18][19]. Since this feature is not observed in the analysis of transfer or quasi-free scattering reactions [16,[20][21][22], it remains unclear if it is due to a bias in the interpretation of the knockout data or more profound differences between these reaction mechanisms and how they should be analyzed and compared to one another.…”

Section: Introductionmentioning

confidence: 96%

“…Because it does not require the detection of a neutron in coincidence with the core, the knockout measurement exhibits higher statistics than breakup. For that reason it is favored over the latter at low beam intensity [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Because of their high statistics, the use of knockout reactions has been extended to study the single-particle structure of more deeply-bound exotic nuclei [15,16]. Experimental data are usually compared to eikonal calculations of the reaction which include shell-model predictions for the spectroscopic factor of the projectile overlap wave function.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental data are usually compared to eikonal calculations of the reaction which include shell-model predictions for the spectroscopic factor of the projectile overlap wave function. In such analyses, the experimental cross section is usually smaller than what theory predicts [15][16][17][18][19]. The quenching factor R S , i.e., the ratio between experiment and theory, is therefore interpreted as quantifying the deviations from shell-model predictions caused by missing correlations in the truncated model space used in structure calculations.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Halo effective field theory analysis of one-neutron knockout reactions of Be11 and C15

Hebborn

Capel

2021

Phys. Rev. C

View full text Add to dashboard Cite

Background: One-nucleon knockout reactions provide insightful information on the single-particle structure of nuclei. When applied to one-neutron halo nuclei, they are purely peripheral, suggesting that they could be properly modeled by describing the projectile within a halo effective field theory (halo-EFT). Purpose: We reanalyze the one-neutron knockout measurements of 11 Be and 15 C-both one-neutron halo nuclei-on beryllium at about 60 MeV/nucleon. We consider halo-EFT descriptions of these nuclei which already provide excellent agreement with breakup and transfer data. Method: We include a halo-EFT description of the projectile within an eikonal-based model of the reaction and compare its outcome to existing data. Results: Excellent agreement with experiment is found for both nuclei. The asymptotic normalization coefficients inferred from this comparison confirm predictions from ab initio nuclear-structure calculations and values deduced from transfer data. Conclusions: Halo-EFT can be reliably used to analyze one-neutron knockout reactions measured for halo nuclei and test predictions from state-of-the-art nuclear structure models on these experimental data.

show abstract

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Halo effective field theory analysis of one-neutron knockout reactions of Be11 and C15

Hebborn

Capel

2021

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…Low-energy pairing correlations in the daughter nuclei were suggested to be responsible for the observed even-odd splitting of the ( p, 2 p) crosssections and the absence of such an effect for the ( p, pn) cross-sections. An extended discussion of the topic of spectroscopic factors and experimentally obtained reduction factors by different reactions can be found in a recent dedicated review [35].…”

Section: Single-particle Spectroscopic Strengthmentioning

confidence: 99%

Quasi-free scattering in inverse kinematics as a tool to unveil the structure of nuclei

2021

Self Cite

View full text Add to dashboard Cite

Quasi-free scattering of electrons and protons has been extensively utilized in the past to study the single-particle structure of nuclei, clustering in light nuclei, and short-range correlated nucleon–nucleon pairs in nuclei. Recently, this approach has been applied in inverse kinematics using hydrogen targets. The characteristic features of this reaction and the experimental challenges and advantages of inverse-kinematics experiments are summarized. The applicability to radioactive beams opens a large research potential to study a variety of properties of neutron-to-proton asymmetric nuclei. Applications of quasi-free scattering in inverse kinematics and its potential are reviewed based on recent and ongoing research programs at different accelerator facilities worldwide.

show abstract

Direct Nuclear Reactions

Bertulani

Bonaccorso

2022

Handbook of Nuclear Physics

View full text Add to dashboard Cite

Quenching of single-particle strength from direct reactions with stable and rare-isotope beams

Cited by 100 publications

References 321 publications

Halo effective field theory analysis of one-neutron knockout reactions of Be11 and C15

Halo effective field theory analysis of one-neutron knockout reactions of Be11 and C15

Quasi-free scattering in inverse kinematics as a tool to unveil the structure of nuclei

Direct Nuclear Reactions

Contact Info

Product

Resources

About