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Kelly, J. J.; Feldman, A. E.; Bs, Flanders; Seifert, H.; Lopiano, D.; Aas, B.; Azizi, A.; Igo, G.; Weston, G.; Whitten, C.; Wong, A. Y.; Hynes, M. V.; McClelland, J. B.; Bertozzi, W.; Jm, Finn; Hyde‐Wright, C. E.; Rw, Lourie; Pe, Ulmer; Be, Norum; Bl, Berman

doi:10.1103/physrevc.43.1272

Cited by 34 publications

(16 citation statements)

References 50 publications

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“…Although the PH optical potential provides good fits to proton elastic scattering data [67,82], we find that its predictions for integrated cross sections are substantially larger than the data. Similarly, PH calculations for proton inelastic scattering to states with surfacepeaked transition densities also tend to produce cross sections that are too large [1,77,5]. We have argued [2] that for finite nuclei nonlocal corrections to the LDA suppress the interaction strength in the surface region, producing smaller inelastic cross sections for surface-peaked states and smaller integrated cross sections.…”

Section: Comparison Of Optical Modelsmentioning

confidence: 99%

Section: E Local Density Approximationmentioning

confidence: 99%

“…More detailed analyses of proton elastic and inelastic scattering data can be found in Refs. [1][2][3][4][5], for example.…”

Section: Comparison Of Optical Modelsmentioning

confidence: 99%

“…Thus, various phase-equivalent optical potentials can produce significantly different predictions when employed to analyze other reactions. Alternatively, we have developed an empirical effective interaction (EEI) [1][2][3][4][5][6] based upon the density dependence predicted by nuclear matter theories of the effective interaction, but where the parameters are fitted to inelastic scattering data. Transition densities fitted to electroexcitation data are used to minimize uncertainties due to nuclear structure.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear transparency to intermediate-energy protons

Kelly

1996

Phys. Rev. C

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Nuclear transparency in the (e, e ′ p) reaction for 135 ≤ T p ≤ 800 MeV is investigated using the distorted wave approximation. Calculations using densitydependent effective interactions, both empirical and theoretical, are compared with phenomenological optical potentials. We find that nuclear transparency is well correlated with proton absorption and neutron total cross sections and that calculations using density-dependent effective interactions provide the best agreement with data. Nuclear transparency calculations are compared with recent electron scattering data for Q 2 < 2 (GeV/c) 2 . For T p < ∼ 200 MeV we find that there is considerable sensitivity to the choice of optical model and that the empirical effective interaction provides the best agreement with the data, but remains 5-10% low. For T p > ∼ 300 MeV we find that there is much less difference between these models, but that the calculations significantly underpredict transparency data and that the discrepancy increases with A. The differences between Glauber and optical model calculations are related to their respective definitions of the semi-inclusive cross section. By using a more inclusive summation over final states the Glauber model emphasizes nucleonnucleon inelasticity, whereas with a more restrictive summation the optical model emphasizes nucleon-nucleus inelasticity; experimental definitions of the semi-inclusive cross section lie between these extremes.

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Section: Comparison Of Optical Modelsmentioning

confidence: 99%

Section: E Local Density Approximationmentioning

confidence: 99%

“…More detailed analyses of proton elastic and inelastic scattering data can be found in Refs. [1][2][3][4][5], for example.…”

Section: Comparison Of Optical Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nuclear transparency to intermediate-energy protons

Kelly

1996

Phys. Rev. C

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“…The effect of these differences upon elastic and inelastic scattering calculations has been surveyed in a series of papers by Kelly and collaborators in which transition densities measured by electroexcitation are used to minimize uncertainties due to nuclear structure and to isolate the effective interaction for detailed examination. (200)(201)(202)(203)(204) Transition densities which are strong in the interior provide information about the high-density properties of the effective interaction, while surface-peaked transition densities reveal the low-density properties. The systematic comparison of such cases demonstrates quite clearly that the effective interaction depends upon local density and that estimates based upon nuclear matter theory have qualitatively correct characteristics, but that none of the theories presently available is sufficiently accurate for quantitative applications to nuclear structure.…”

Section: Microscopic Optical Modelsmentioning

confidence: 99%

Nucleon Knockout by Intermediate Energy Electrons

Kelly

Advances in Nuclear Physics

133

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Advances in Nuclear Physics

2002

Advances in Nuclear Physics

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A Continuation Order Plan is available for this series. A continuation order will bring delivery of each new volume immediately upon publication. Volumes are billed only upon actual shipment. PREFACEThis volume of Advances in Nuclear Physics addresses two very different frontiers of contemporary nuclear physics -one highly theoretical and the other solidly phenomenological.The first article by Matthias Burkardt provides a pedagogical overview of the timely topic of light front quantization. Although introduced decades ago by Dirac, light front quantization has been a central focus in theoretical nuclear and particle physics in recent years for two major reasons. The first, as discussed in detail by Burkardt, is that light-cone coordinates are the natural coordinates for describing high-energy scattering. The wealth of data in recent years on nucleon and nucleus structure functions from high-energy lepton and hadron scattering thus provides a strong impetus for understanding QCD on the light cone. Second, as theorists have explored light front quantization, a host of deep and intriguing theoretical questions have arisen associated with the triviality of the vacuum, the role of zero modes, rotational invariance, and renormalization. These issues are so compelling that they are now intensively investigated on their own merit, independent of the particular application to high-energy scattering. This article provides an excellent introduction and overview of the motivation from high-energy scattering, an accessible description of the basic ideas, an insightful discussion of the open problems, and a helpful guide to the specialized literature. It is an ideal opportunity for those with a spectator's acquaintance to develop a deeper understanding of this important field.The second article provides a comprehensive review by James Kelly of major advances in the field of electron-induced nucleon knockout reactions.In principle, knockout of a nucleon by the known electromagnetic current provides a powerful tool to explore the energy and momentum distribution of protons and neutrons in finite nuclei. The advent of high duty-factor accelerators, polarized beams, out-of-plane detectors, and increased kinematic range and resolution has dramatically expanded our experimental horizons, and brings us far closer to exploiting the full potential of this probe. Kelly's xi xii Preface article provides a thorough review of the basic framework for extracting nuclear structure information from knockout reactions and surveys major new experimental results. It is also extremely useful in highlighting the limitations in our understanding of these reactions arising from theoretical uncertainties in the optical potential, off-shell nucleon currents, and the reaction mechanism. The combination of the recent experiments reviewed here and those about to begin at new facilities represents a major advance in nuclear physics, and this article provides both an excellent introduction for nonspecialists and a comprehensive overview for those in the fie...

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Effective interaction forO16(p,p’) atE

Cited by 34 publications

References 50 publications

Nuclear transparency to intermediate-energy protons

Nuclear transparency to intermediate-energy protons

Nucleon Knockout by Intermediate Energy Electrons

Advances in Nuclear Physics

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