Special features of the isospin splitting of the giant dipole resonance in the {sup 90}Zr nucleus

Journal Article · Sat Feb 14 23:00:00 EST 2009 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778809020033· OSTI ID:21406029

Peskov, N N; Stepanov, M E ^[1]

---

1. Moscow State University, Institute of Nuclear Physics (Russian Federation)

Data on the proton and neutron channels of the {sup 90}Zr photodisintegration were analyzed in detail, basic parameters of the isospin splitting of the giant dipole resonance in {sup 90}Zr being determined by the properties of these channels. New data concerning the cross sections for the partial photoneutron reactions {sup 90}Zr({gamma}, n){sup 89}Zr and {sup 90}Zr({gamma}, 2n){sup 88}Zr and resulting from a simultaneous correction of data from experiments performed in Livermore (USA) and Saclay (France) by using beams of quasimonoenergetic annihilation photons were invoked. Use was made of information about the positions on the energy scale of states characterized by different isospin values in the {sup 90}Zr nucleus and nuclei neighboring it, which are members of the respective isospin multiplet. New data on the parameters of the isospin splitting of the giant dipole resonance in the {sup 90}Zr nucleus were obtained on the basis of a global analysis of data on the giant-dipole-resonance states of the {sup 90}Zr nucleus, which are manifested in the respective photoneutron and photoproton cross sections and in their decay channels involving states of different isospin in neighboring nuclei.

• OSTI ID: 21406029
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 72; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANNIHILATION
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CORRECTIONS
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
GIANT RESONANCE
GLOBAL ANALYSIS
HADRONS
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOSPIN
ISOTOPES
MASSLESS PARTICLES
MATHEMATICS
MILLISECONDS LIVING RADIOISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHOTON BEAMS
PHOTONS
PHOTONUCLEAR REACTIONS
PROTONS
RADIOISOTOPES
RESONANCE
STABLE ISOTOPES
ZIRCONIUM 88
ZIRCONIUM 89
ZIRCONIUM 90
ZIRCONIUM ISOTOPES