Center-of-mass effects in single-nucleon knock-out reactions

Dieperink, A.E.L.; Forest, T. de

doi:10.1103/physrevc.10.543

Cited by 104 publications

(144 citation statements)

References 17 publications

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“…All these works yield spectroscopic factors of 90% for the knockout of a proton for the p 1/2 and p 3/2 shells in the (e,e ′ p) reaction before the effects of the spurious motion of the center-of-mass are taken into account. Such center-of-mass corrections are known to raise the theoretical spectroscopic factor by about 7% [23,197]. These results are in disagreement with the experimental value of about 60% for these orbitals [198].…”

Section: Theoretical Calculations For Finite Nucleicontrasting

confidence: 55%

“…(23), and therefore, the total one-body strength must be represented by Z nπ (159). This indicates a strong coupling to the (dressed) ph propagator (23). On the basis of this similarity, it still seems plausible to shift the ph-DRPA solution down in energy in order to study its mixing with other configurations.…”

Section: Spectrum Of 16 O and Extension Of Rpamentioning

confidence: 99%

“…(8) are exactly one for those states that belong to the Fermi sea and zero otherwise, reflecting the occupancy of the orbitals in |Φ A 0 . A deviation from unity occurs in a finite system when the center-of-mass motion is properly treated [23].…”

Section: Formal Development 21 Single-particle Green's Functionmentioning

confidence: 99%

“…Since the present formalism does not account for center-of-mass effects, the above quantities need to be increased by about 7% before they are compared with the experiment [23,197]. The RPA results have been iterated several times, with the aim of studying the effects of fragmentation on the RPA phonons and, subsequently, on the spectral strength.…”

Section: Single-particle Spectral Function Of 16 Omentioning

confidence: 99%

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Self-consistent Green's function method for nuclei and nuclear matter

Dickhoff

Barbieri

2004

Progress in Particle and Nuclear Physics

501

599

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Recent results obtained by applying the method of self-consistent Green's functions to nuclei and nuclear matter are reviewed. Particular attention is given to the description of experimental data obtained from the (e,e ′ p) and (e,e ′ 2N) reactions that determine one and two-nucleon removal probabilities in nuclei since the corresponding amplitudes are directly related to the imaginary parts of the single-particle and two-particle propagators. For this reason and the fact that these amplitudes can now be calculated with the inclusion of all the relevant physical processes, it is useful to explore the efficacy of the method of self-consistent Green's functions in describing these experimental data. Results for both finite nuclei and nuclear matter are discussed with particular emphasis on clarifying the role of short-range correlations in determining various experimental quantities. The important role of long-range correlations in determining the structure of lowenergy correlations is also documented. For a complete understanding of nuclear phenomena it is therefore essential to include both types of physical correlations. We demonstrate that recent experimental results for these reactions combined with the reported theoretical calculations yield a very clear understanding of the properties of all protons in the nucleus. We propose that this knowledge of the properties of constituent fermions in a correlated many-body system is a unique feature of nuclear physics.

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Section: Theoretical Calculations For Finite Nucleicontrasting

confidence: 55%

Section: Spectrum Of 16 O and Extension Of Rpamentioning

confidence: 99%

Section: Formal Development 21 Single-particle Green's Functionmentioning

confidence: 99%

Section: Single-particle Spectral Function Of 16 Omentioning

confidence: 99%

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Self-consistent Green's function method for nuclei and nuclear matter

Dickhoff

Barbieri

2004

Progress in Particle and Nuclear Physics

501

599

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“…The mass dependent term is the required centre-of-mass correction to the shell-model spectroscopic factors, with N = 3 for the f p-shell [28]. The single-nucleon wave functions were calculated in a Woods-Saxon potential (central plus spin-orbit), with diffuseness a = 0.6 fm and spin-orbit strength V so = 6 MeV.…”

Section: State Inmentioning

confidence: 99%

Mirrored one-nucleon knockout reactions to theTz=±32 A=53mirror nuclei

et al. 2016

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Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e. isospin-non-conserving) interactions in nuclei. Purpose:To extend previous studies of mirror nuclei in the f 7 2 region, investigating charge symmetry breaking (CSB) of the strong nuclear force.Methods: Gamma-ray spectroscopy has been performed for the mirror (Tz = ± Conclusions:The inclusion of a set of isovector isospin-non-conserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.

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Relationship between Feshbach′s and Green′s Function Theories of the Nucleon-Nucleus Mean Field

Capuzzi

Mahaux

1995

Annals of Physics

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Center-of-mass effects in single-nucleon knock-out reactions

Cited by 104 publications

References 17 publications

Self-consistent Green's function method for nuclei and nuclear matter

Self-consistent Green's function method for nuclei and nuclear matter

Mirrored one-nucleon knockout reactions to theTz=±32 A=53mirror nuclei

Relationship between Feshbach′s and Green′s Function Theories of the Nucleon-Nucleus Mean Field

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