Quasi-Free Scattering and Nuclear Structure. II.

Jacob, Gerhard; Maris, Th.A.J.

doi:10.1103/revmodphys.45.6

Cited by 251 publications

(115 citation statements)

References 66 publications

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“…The value of the parameter σ 1s is fixed to be 8.7 MeV (that corresponds to the experimental width of the 1s state in 16 O taken from Ref. [49]) and σ 1p = σ 1d = σ 1f = 0.5 MeV. The results depend very weakly on the choice of parameters σ i .…”

Section: B the Role Of Fsimentioning

confidence: 99%

“…12. Here the value of the parameter σ 1s is fixed to be 7.8 MeV (that corresponds to the experimental width of the 1s state in 12 C taken from [49]), and the values of σ 1p are varied. Figure 12 also shows the result for the scaling function obtained when more recent experimental data for the full width at half maximum (FWHM) for 1s and 1p states (taken from [50]) are used.…”

Section: B the Role Of Fsimentioning

confidence: 99%

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Scaling function, spectral function, and nucleon momentum distribution in nuclei

et al. 2011

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The link between the scaling function extracted from the analysis of (e, e ) cross sections and the spectral function/momentum distribution in nuclei is revisited. Several descriptions of the spectral function based on the independent particle model are employed, together with the inclusion of nucleon correlations, and effects of the energy dependence arising from the width of the hole states are investigated. Although some of these approaches provide rough overall agreement with data, they are not found to be capable of reproducing one of the distinctive features of the experimental scaling function, namely its asymmetry. However, the addition of final-state interactions, incorporated in the present study using either relativistic mean-field theory or via a complex optical potential, does lead to asymmetric scaling functions in accordance with data. The present analysis seems to indicate that final-state interactions constitute an essential ingredient and are required to provide a proper description of the experimental scaling function.

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Section: B the Role Of Fsimentioning

confidence: 99%

Section: B the Role Of Fsimentioning

confidence: 99%

Scaling function, spectral function, and nucleon momentum distribution in nuclei

et al. 2011

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“…An alternative method of gaining access to the mean-field properties of nuclei is the A(p,2p) reaction [6]. For the study of stable nuclei one may prefer the A(e,e p) reaction as it leads to some reduced parameter dependence of the extracted results, such as spectroscopic factors.…”

Section: Introductionmentioning

confidence: 99%

Density dependence of quasifree single-nucleon knockout reactions

2011

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We address the issue of whether quasifree single-nucleon knockout measurements carry sufficient information about the nuclear interior. To this end, we present comparisons of the reaction probability densities for A(e,e p) and A (p,2p) in quasifree kinematics for the target nuclei 4 He, 12 C, 56 Fe, and 208 Pb. We adopt a comprehensive framework based on the impulse approximation and on a relativized extension of Glauber multiple-scattering reaction theory in which the medium effects related to short-range correlations (SRCs) are implemented. It is demonstrated that SRCs weaken the effect of attenuation. For light target nuclei, both the quasifree (p,2p) and (e,e p) can probe average densities of the same order as nuclear saturation density ρ 0 . For heavy nuclei such as 208 Pb, the probed average densities are smaller than 0.1ρ 0 and the (e,e p) reaction is far more efficient in probing the bulk regions than (p,2p).

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“…Nucleon-knockout (p, 2p), (p, pn) reactions at intermediate energies (200-300 MeV) provide a powerful probe of the single particle nature of nuclei [1]. Exclusive measurements of the (p, 2p), (p, pn) reactions allow one to determine the separation energies, becoming one of hot topics in studies of unstable nuclei.…”

Section: Introductionmentioning

confidence: 99%

A new neutron detector with a high position resolution for the study of the (p,pn) reaction on rare isotopes

Kubota

Sasano

Uesaka

et al. 2014

EPJ Web of Conferences

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Abstract. We are developing a neutron detector with a position resolution better than 3 mm to study the single particle properties of nuclei by the knockout (p, pn) reaction at intermediate energies. We constructed a prototype detector consisting of scintillating fibers and multi-anode photomultiplier tubes (PMTs). A test experiment using 70-MeV proton and 68-and 50-MeV neutron was performed for characterizing its performance. In preliminary results, a position resolution of about 3 mm, is realized, as designed. The resulting separation-energy resolution would be 1 MeV, when using this system at a distance of 2 m from the target for measuring the (p, pn) reaction.

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Quasi-Free Scattering and Nuclear Structure. II.

Cited by 251 publications

References 66 publications

Scaling function, spectral function, and nucleon momentum distribution in nuclei

Scaling function, spectral function, and nucleon momentum distribution in nuclei

Density dependence of quasifree single-nucleon knockout reactions

A new neutron detector with a high position resolution for the study of the (p,pn) reaction on rare isotopes

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