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Isobaric analog resonances in (e,e'p) on $sup 90$Zr, $sup 89$Y, and $sup 88$Sr

Journal Article · · Nucl. Phys., A, v. A221, no. 1, pp. 125-144
OSTI ID:4340087
; ; ;

Photoproton energy and angular distributions were measured for the (e,e'p) reaction on /sup 90/Zr, /sup 89/Y and /sup 88/Sr at a number of elec tron bombarding energies. Proton groups passing through resonances are found in the energy distributions. The dependence on the residual states is studied, and it is found that a large contribution from core excitation exists in the strong E1 IAS. The configurations of these IAS are discussed with respect to the angular distributions. Cross sections of the ( gamma ,p/sub o/) reaction were extracted from the photoproton spectra. The results show a coherent T + 1 resonance in good agreement with theory. The E1 IAS are compared with the results from various types of nuclear reactions. Strerigths of the IAR are found to depend on the type of reaction. (16 figures, 5 tables) (auth)

Research Organization:
Tohoku Univ., Sendai
NSA Number:
NSA-29-028266
OSTI ID:
4340087
Journal Information:
Nucl. Phys., A, v. A221, no. 1, pp. 125-144, Journal Name: Nucl. Phys., A, v. A221, no. 1, pp. 125-144; ISSN NUPAB
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ANGULAR DISTRIBUTION-- CROSS SECTIONS-- ELECTRON REACTIONS-- EXCITATION FUNCTIONS-- MEV RANGE 10-100-- PHOTONUCLEAR REACTIONS-- PROTON SPECTRA-- PROTONS-- QUASI-ELASTIC SCATTERING-- RUBIDIUM 87-- STRONTIUM 88
ANGULAR DISTRIBUTION-- CROSS SECTIONS-- ELECTRON REACTIONS-- EXCITATION FUNCTIONS-- MEV RANGE 10-100-- PHOTONUCLEAR REACTIONS-- PROTON SPECTRA-- PROTONS-- QUASI-ELASTIC SCATTERING-- YTTRIUM 89-- ZIRCONIUM 90
ISOBARIC ANALOGS-- STRONTIUM 88-- YTTRIUM 89-- ZIRCONIUM 90
LEVEL WIDTHS
N68631 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
59 <= A <= 89--Energy Levels & Transitions
N68651* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
59 <= A <= 89--Nuclear Reactions & Scattering
N68731 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Energy Levels & Transitions
N68751 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
90 <= A <= 149--Nuclear Reactions & Scattering
RESONANCE CROSS SECTIONS-- ELECTRON REACTIONS-- EXCITATION FUNCTIONS-- MEV RANGE 10-100-- PHOTONUCLEAR REACTIONS-- PROTON SPECTRA-- PROTONS-- QUASI-ELASTIC