Excitation of the two-phonon giant dipole resonance in 238U studied via inclusive measurements of neutron-removal cross sections

Aumann, T.; Sümmerer, K.; Bertulani, C. A.; Kratz, J. V.; FRS-collaborationd,; Geißel, H.; Blank, Β.; Brohm, T.; Clerc, H.‐G.; Czájkowski, S.; Donzaud, C.; Grewe, A.; Hanelt, E.; Heinz, A.; Irnich, H.; Jong, M. de; Junghans, A. R.; Magel, A.; Münzenberg, G.; Nickel, F.; Pfützner, M.; Piechaczek, A.; Röhl, C.; Scheidenberger, C.; Schmidt, Karl‐Heinz; Schwab, W.; Steinhäuser, S.; Trinder, W.; Voss, B.

doi:10.1016/0375-9474(96)00074-7

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…One of our first applications of UPCs was in the study of giant resonances in nuclei [16]. The excitation is most often followed by neutron emission and the cross sections are several barns for heavy nuclei even at moderate energies of ∼ 1 GeV/nucleon such as those available at the GSI laboratory in Germany [17,18]. At these bombarding energies giant resonances can also be excited with a large probability by means of nuclear interactions.…”

Section: Giant Resonancesmentioning

confidence: 99%

Physics of Ultra-Peripheral Nuclear Collisions

Bertulani

Klein

Nystrand

2005

Annu. Rev. Nucl. Part. Sci.

462

380

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Moving highly-charged ions carry strong electromagnetic fields that act as a field of photons. In collisions at large impact parameters, hadronic interactions are not possible, and the ions interact through photon-ion and photon-photon collisions known as ultra-peripheral collisions (UPC). Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron and the LargeHadron Collider (LHC) produce photonuclear and two-photon interactions at luminosities and energies beyond that accessible elsewhere; the LHC will reach a γp energy ten times that of the Hadron-Electron Ring Accelerator (HERA). Reactions as diverse as the production of antihydrogen, photoproduction of the ρ 0 , transmutation of lead into bismuth and excitation of collective nuclear resonances have already been studied. At the LHC, UPCs can study many types of 'new physics.'

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Section: Giant Resonancesmentioning

confidence: 99%

Physics of Ultra-Peripheral Nuclear Collisions

Bertulani

Klein

Nystrand

2005

Annu. Rev. Nucl. Part. Sci.

462

380

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“…This was demonstrated by comparison off experiment to theory in Ref. [108,274]. Therefore, EM dissociation leads to large interaction cross sections, which can easily measure in inverse kinematics.…”

Section: Coulomb Excitationmentioning

confidence: 83%

“…In Fig. 33 we show the cross section for electromagnetic dissociation of 238 U [274]. The Coulomb fission cross sections (diamonds), measured with 208 Pb beams on 238 Utargets are from Ref.…”

Section: Coulomb Excitationmentioning

confidence: 99%

Indirect methods in nuclear astrophysics with relativistic radioactive beams

Aumann,

Bertulani

2019

Preprint

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Reactions with radioactive nuclear beams at relativistic energies have opened new doors to clarify the mechanisms of stellar evolution and cataclysmic events involving stars and during the big bang epoch. Numerous nuclear reactions of astrophysical interest cannot be assessed directly in laboratory experiments. Ironically, some of the information needed to describe such reactions, at extremely low energies (e.g., keVs), can only be studied on Earth by using relativistic collisions between heavy ions at GeV energies. In this contribution, we make a short review of experiments with relativistic radioactive beams and of the theoretical methods needed to understand the physics of stars, adding to the knowledge inferred from astronomical observations. We continue by introducing a more detailed description of how the use of relativistic radioactive beams can help to solve astrophysical puzzles and several successful experimental methods. State-of-the-art theories are discussed at some length with the purpose of helping us understand the experimental results reported. The review is not complete and we have focused most of it to traditional methods aiming at the determination of the equation of state of symmetric and asymmetric nuclear matter and the role of the symmetry energy. Whenever possible, under the limitations of our present understanding of experimental data and theory, we try to pinpoint the information still missing to further understand how stars evolve, explode, and how their internal structure might be. We try to convey the idea that in order to improve microscopic theories for many-body calculations, nuclear structure, nuclear reactions, and astrophysics, and in order to constrain and allow for convergence of our understanding of stars, we still need considerable improvements in terms of accuracy of experiments and the development of new and dedicated nuclear facilities to study relativistic reactions with radioactive beams.

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Indirect methods in nuclear astrophysics with relativistic radioactive beams

Aumann

Bertulani

2020

Progress in Particle and Nuclear Physics

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Excitation of the two-phonon giant dipole resonance in 238U studied via inclusive measurements of neutron-removal cross sections

Cited by 4 publications

References 18 publications

Physics of Ultra-Peripheral Nuclear Collisions

Physics of Ultra-Peripheral Nuclear Collisions

Indirect methods in nuclear astrophysics with relativistic radioactive beams

Indirect methods in nuclear astrophysics with relativistic radioactive beams

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