1999
DOI: 10.1016/s0375-9474(99)80002-5
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Electromagnetic polarizabilities of nucleons bound in 40Ca, 16O and 4He

Abstract: Differential cross sections for elastic scattering of photons have been measured for 40 Ca at energies of 58 and 74 MeV and for 16 O and 4 He at 61 MeV, in the angular range from 45 • to 150 • . Evidence is obtained that there are no significant in-medium modifications of the electromagnetic polarizabilities except for those originating from meson exchange currents.

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Cited by 11 publications
(11 citation statements)
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“…In the next paragraph we will see that such differences become visible for the smaller nucleus 16 O. [42,47,48] for 40 …”
Section: O (Lower Figure) Partitioned Into Components Having Lorentzimentioning
confidence: 87%
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“…In the next paragraph we will see that such differences become visible for the smaller nucleus 16 O. [42,47,48] for 40 …”
Section: O (Lower Figure) Partitioned Into Components Having Lorentzimentioning
confidence: 87%
“…At low energies the relative strengths of electromagnetic multipoles were analyzed [13,16,19,25,33,64,95,169] for comparison with predictions from multipole sum rules. The interesting question, whether the electromagnetic polarizabilities of the nucleon inside the nucleus essentially differ from those of the free nucleon, has been theoretically addressed [80,82,104,166,168] and experimentally studied with good accuracy [39,43,48,170].…”
Section: Compton Scattering Below Pion Threshold: General Aspectsmentioning
confidence: 99%
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“…These differences were driven by the back-angle cross sections which tended to be larger than the theoretical predictions, as is also seen in the current d(γ, γ)d results. Other measurements, performed at Lund, have reported no modification of the free polarizabilities [19]. Clearly this issue has yet to be resolved.…”
mentioning
confidence: 93%
“…[8] 12 C [9], [10], [11], [12], [13] 16 O [7], [8], [11], [12], [14], [15] 40 Ca [7], [9] It is also reasonable to ask whether the nucleon polarizabilities are modified when the proton or neutron is bound in a nucleus and, if so, to what degree. A multitude of Compton-scattering experiments have been carried out with a variety of light nuclei (see Table I) for the purpose of determining the bound-nucleon polarizabilities (α eff and β eff ) given by α eff = α N + ∆α, β eff = β N + ∆β, (6) where α N and β N are the nucleon-averaged free polarizabilities and ∆α and ∆β represent the nuclear modifications [13] which can be extracted from the scattering data.…”
Section: Introductionmentioning
confidence: 99%