Survey of the (He3,t) reaction: Excitation of the isobaric analog of the giant dipole resonance

A long-standing issue in nuclear structure is whether double giant resonances do exist. Exotic excitations like the double giant-dipole were predicted for many years but not observed experimentally until recently. Several experiments have been carried out at Los Alamos National Laboratory and other laboratories to search for these new collective modes of the nucleus. The results discover the existence of two previously unobserved types of double giant resonances. This work presents a review of the pion double charge exchange data and the analysis which support the existence of two such exotic vibrational nuclear modes: the giant dipole resonance built on the isobaric analog state and the double isovector giant-dipole resonance. Excitation of multiphonon states also becomes a very likely process in relativistic heavy-ion reactions where a direct identification of the double giant-dipole resonance has been reported recently.

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Properties of the giant dipole resonance built on the isobaric analog state

Physical Review C ◽

10.1103/physrevc.40.850 ◽

1989 ◽

Vol 40 (2) ◽

pp. 850-858 ◽

Cited By ~ 28

Author(s):

S. Mordechai ◽

N. Auerbach ◽

S. Greene ◽

C. L. Morris ◽

J. M. O’Donnell ◽

...

Keyword(s):

Giant Dipole Resonance ◽

Dipole Resonance ◽

Isobaric Analog ◽

Isobaric Analog State

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Giant dipole resonance of atomic nuclei. Prediction, discovery and research

Uspekhi Fizicheskih Nauk ◽

10.3367/ufnr.2020.02.038725 ◽

2020 ◽

Author(s):

B.S. Ishkhanov ◽

Igor M. Kapitonov

Keyword(s):

Giant Dipole Resonance ◽

Atomic Nuclei ◽

Dipole Resonance

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STUDIES OF PHOTONUCLEAR REACTIONS AND PHOTON ACTIVATION ANALYSIS IN THE GIANT DIPOLE RESONANCE REGION USING MICROTRONS

Communications in Physics ◽

10.15625/0868-3166/14/1/18 ◽

2007 ◽

Vol 14 (1) ◽

pp. 42 ◽

Cited By ~ 3

Author(s):

TRAN DUC THIEP ◽

NGUYEN VAN DO ◽

NGUYEN KHAC THI ◽

TRUONG THI AN ◽

NGUYEN NGOC SON

Keyword(s):

Activation Analysis ◽

Giant Dipole Resonance ◽

Resonance Region ◽

Photon Activation Analysis ◽

Photon Flux ◽

Photon Activation ◽

Applied Physics ◽

Dipole Resonance ◽

Giant Dipole Resonance Region ◽

Fission Neutrons

Mictrorons are accelerators of electrons and are simultaneous sources of bremsstrahlung photon flux and fission neutrons. In 1982, a microtron of seventeen trajectories Microtron MT - 17 was put into operation at the National Institute of Physics of Vietnam. Though very modest, microtons are very useful for developing countries such as Vietnam in both fundamental and applied physics research. During the recent years by using the above mentioned MT - 17 and microtrons from other institutes we have carried out different investigations. In this report we present some results obtained in the studies of photonuclear reactions and photon activation analysis in the giant dipole resonance region.

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