Excitation of low-lying state by E3 transition in reaction with real photons

Excitation of low-lying state by E3 transition in reaction with real photons

The yield of the isomeric state 117mSn (Eiso = 314.58 keV) has been measured in (gamma, gamma') reaction by activation method with the bremsstrahlung end-point energy from 2.1 to 3.0 MeV. Only one intermediate state (IS) responsible for the isomer feeding has been found. The excitation energy o...

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Veröffentlicht in:arXiv.org 2006-03
Hauptverfasser: Shevchenko, O S, Ranyuk, Yu M, Dovbnya, A M, Noga, V I, Kuplennikov, E L, Nemashkalo, A A, Goncharov, I G, Borisenko, V N, V Yu Ponomarev
Format: Artikel
Sprache:eng
Schlagworte:
Bremsstrahlung
Excitation
Photons
Photoproduction
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Zusammenfassung:The yield of the isomeric state 117mSn (Eiso = 314.58 keV) has been measured in (gamma, gamma') reaction by activation method with the bremsstrahlung end-point energy from 2.1 to 3.0 MeV. Only one intermediate state (IS) responsible for the isomer feeding has been found. The excitation energy of the IS (2.25 +/- 0.05) MeV and photoproduction integral cross section (0.022 +/- 0.002) eV b have been deduced. Microscopic calculations within the Quasiparticle-phonon model have been performed to learn on the IS structure. We conclude that the IS is excited in the present experiment by the E3-transition.
ISSN:2331-8422