Heavy-ion Coulomb excitation and photon decay of the giant dipole resonance in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Pb</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>208</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Beene, J. R.; Bertrand, F. E.; Hören, D.J.; Auble, R.L.; Burks, B. L.; Campo, J. Gómez del; Halbert, M.L.; Sayer, R.O.; Mittig, W.; Schutz, Y.; Barrette, J.; Alamanos, N.; Auger, F.; Fernández, Beatriz; Gillibert, A.; Haas, Brian J.; Vivien, J.P.

doi:10.1103/physrevc.41.920

Cited by 59 publications

(41 citation statements)

References 29 publications

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“…This is displayed in Fig. 1, where the excitation of the GDR in 208 Pb was observed in the inelastic scattering of 17 O at 22A MeV and 84A MeV, respectively, and 36 Ar at 95A MeV [13,14]. What one clearly sees is that the "bump" corresponding to the GDR at 13.5 MeV is appreciably enhanced.…”

Section: Introductionmentioning

confidence: 76%

“…Indeed, using Eqs. (13)(14)(15)(16), one finds v 2c 2 J · ê 0 (r ′ · ∇φ) − (r ′ ·ê 0 )∇φ = v 2c 2 J · 4π 3…”

Section: Heavy Ion Excitation Of Giant Resonances 21 Coulomb Excitatmentioning

confidence: 99%

“…We calculate R γ and σ γγ according to the prescriptions of Ref. [13] and Ref. [34], respectively; in both cases we neglect the statistical contribution to the photon decay.…”

Section: Excitation and Photon Decay Of The Gdrmentioning

confidence: 99%

“…a GDR excited on a GDR state) exists then the cross sections for their excitation in heavy ion collisions at relativistic energies are of order of a few hundred of milibarns. These calculations motivated experimentalists at the GSI [7,9] and elsewhere [13,14] to look for the signatures of the DGDR in the laboratory. This has by now become a very active field in nuclear physics with a great theoretical and experimental interest [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

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Microscopic studies of two-phonon giant resonances

Ponomarev

1999

Nuclear Physics A

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A new class of giant resonances in nuclei, namely double giant resonances, is discussed. They are giant resonances built on top of other giant resonances. Investigation on their properties, together with similar studies on low-lying two-phonon states, should give an answer on how far the harmonic picture of boson-type excitations holds in the finite fermion systems like atomic nuclei.The main attention in this review is paid to double giant dipole resonances (DGDR) which are observed in relativistic heavy ion collisions with very large cross sections. A great experimental and theoretical effort is underway to understand the reaction mechanism which leads to the excitation of these states in nuclei, as well as the better microscopic understanding of their properties. The Coulomb mechanism of the excitation of single and double giant resonances in heavy ion collision at different projectile energies is discussed in details. A contribution of the nuclear excitation to the total cross section of the reaction is also considered. The Coulomb excitation of double resonances is described within both, the second-order perturbation theory approach and in coupled-channels calculation. The properties of single and double resonances are considered within the phenomenologic harmonic vibrator model and microscopic quasiparticle-RPA approach. For the last we use the Quasiparticle-Phonon Model (QPM) the basic ideas and formalism of which are presented. The QPM predictions of the DGDR properties (energy centroids, widths, strength distributions, anharmonicities and excitation cross sections) are compared to predictions of harmonic vibrator model, results of other microscopic calculations and experimental data available. : 24.30.Cz, 25.70.De, Pacs

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Section: Introductionmentioning

confidence: 76%

“…Indeed, using Eqs. (13)(14)(15)(16), one finds v 2c 2 J · ê 0 (r ′ · ∇φ) − (r ′ ·ê 0 )∇φ = v 2c 2 J · 4π 3…”

Section: Heavy Ion Excitation Of Giant Resonances 21 Coulomb Excitatmentioning

confidence: 99%

“…We calculate R γ and σ γγ according to the prescriptions of Ref. [13] and Ref. [34], respectively; in both cases we neglect the statistical contribution to the photon decay.…”

Section: Excitation and Photon Decay Of The Gdrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microscopic studies of two-phonon giant resonances

Ponomarev

1999

Nuclear Physics A

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“…Eventually, the γ-decay width (Γ γ ), given by the coupling to the electromagnetic field is a small fraction (≤ 10 −2 ) of the total width. Despite this, the study of the γ decay of GRs has been considered a valuable tool for about 30 years [2,3].…”

Section: Introductionmentioning

confidence: 99%

A microscopic model beyond mean-field: from giant resonances properties to the fit of new effective interactions

Brenna

Roca-Maza

Bortignon

et al. 2014

EPJ Web of Conferences

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Abstract. A completely microscopic beyond mean-field approach has been elaborated to overcome some intrinsic limitations of self-consistent mean-field schemes applied to nuclear systems, such as the incapability to produce some properties of single-particle states (e.g. spectroscopic factors), as well as of collective states (e.g. their damping width and their gamma decay to the ground state or to low lying states). Since commonly used effective interactions are fitted at the mean-field level, one should aim at refitting them including the desired beyond mean-field contributions in the refitting procedure. If zero-range interactions are used, divergences arise. We present some steps towards the refitting of Skyrme interactions, for its application in finite nuclei.

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Electromagnetic excitation of the two-phonon giant dipole resonance

Emling

1994

Progress in Particle and Nuclear Physics

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Heavy-ion Coulomb excitation and photon decay of the giant dipole resonance inPb208

Cited by 59 publications

References 29 publications

Microscopic studies of two-phonon giant resonances

Microscopic studies of two-phonon giant resonances

A microscopic model beyond mean-field: from giant resonances properties to the fit of new effective interactions

Electromagnetic excitation of the two-phonon giant dipole resonance

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