Reconstruction of the optical potential from scattering data

Khokhlov, N. A.; Knyr, V. A.

doi:10.1103/physrevc.73.024004

Cited by 20 publications

(26 citation statements)

References 45 publications

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“…For instance, the evaluation of the imaginary part of the optical potential depends on the treatment of the widths of intermediate states that are rather unclear or the nucleon polarization in the medium that is in principle coupled to the vacuum. On the other hand, one can start from a physically reasonable approximation for the optical potential and determine its parameters using the experimental data [435] as in the RIA. As we have already discussed in Chapter 3, the optical potential in the RIA is obtained in a form similar to the non-relativistic tρ approximation.…”

Section: Nn Cross Sections In Neutron-rich Matter Within the Relativimentioning

confidence: 99%

Recent progress and new challenges in isospin physics with heavy-ion reactions

2008

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The ultimate goal of studying isospin physics via heavy-ion reactions with neutron-rich, stable and/or radioactive nuclei is to explore the isospin dependence of in-medium nuclear effective interactions and the equation of state of neutron-rich nuclear matter, particularly the isospin-dependent term in the equation of state, i.e., the density dependence of the symmetry energy. Because of its great importance for understanding many phenomena in both nuclear physics and astrophysics, the study of the density dependence of the nuclear symmetry energy has been the main focus of the intermediate-energy heavy-ion physics community during the last decade, and significant progress has been achieved both experimentally and theoretically. In particular, a number of phenomena or observables have been identified as sensitive probes to the density dependence of the nuclear symmetry energy. Experimental studies have confirmed some of these interesting isospin-dependent effects and allowed us to constrain relatively stringently the symmetry energy at sub-saturation densities. The impacts of this constrained density dependence of the symmetry energy on the properties of neutron stars have also been studied, and they were found to be very useful for the astrophysical community. With new opportunities provided by the various radioactive beam facilities being constructed around the world, the study of isospin physics is expected to remain one of the forefront research areas in nuclear physics. In this report, we review the major progress achieved during the last decade in isospin physics with heavy ion reactions and discuss future challenges to the most important issues in this field.Key words: Equation of state of asymmetric nuclear matter, Nuclear symmetry energy, Heavy-ion reactions with neutron-rich nuclei, Neutron skin thickness of heavy nuclei, Neutron stars Constraining the Skyrme effective interactions and the neutron skin thickness of heavy nuclei using terrestrial nuclear laboratory data 216 8

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Section: Nn Cross Sections In Neutron-rich Matter Within the Relativimentioning

confidence: 99%

Recent progress and new challenges in isospin physics with heavy-ion reactions

2008

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“…In Sec. III, we present the optical Moscow-type NN potential derived by quantum inversion [23] within the relativistic quasipotential approach [11,24]. We show that the modern PWA data of NN scattering [22] are compatible with the concept of the MP.…”

Section: Introductionmentioning

confidence: 75%

“…Effect of these forces is much enhanced [23], as far as three nucleons without a NN core can overlap and form short-range 9q subsystems with large probability. Recent experiments [46] on the knock-out of nucleon from the 3 He nucleus may clarify the situation.…”

Section: Results and Future Prospectsmentioning

confidence: 99%

“…We apply the method of inversion [23] to the analysis of NN data up to energies at which relativistic effects are essential. We take into account these effects in the frames of the RQM [11,15].…”

Section: Relativistic Optical N N Potentialmentioning

confidence: 99%

“…In this study, the Moscow partial potentials are reconstructed from the NN partial-wave analysis (PWA) data within the energy range 0 E lab 3 GeV [22]. This reconstruction is based on our approach to the inverse-scattering problem for optical potentials [23].…”

Section: Introductionmentioning

confidence: 99%

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Nucleon-nucleon wave function with short-range nodes and high-energy deuteron photodisintegration

2007

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We review a concept of the Moscow potential of the NN interaction. On the basis of this concept, we derive by quantum inversion optical partial potentials from the modern partial-wave analysis data and deuteron properties. Point-form relativistic quantum mechanics is applied to the two-body deuteron photodisintegration. Calculations of the cross-section angular distributions cover photon energies between 1.1 and 2.5 GeV. Good agreement between our theory and recent experimental data confirms the concept of deep attractive Moscow potential with forbidden S and P states.

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