Photoresponse of 76Se below 9 MeV

N. Cooper, F. Reichel, V. Werner, L. Bettermann, B. Alikhani, S. Aslanidou, C. Bauer, L. Coquard, M. Fritzsche, Y. Fritzsche, J. Glorius, P. M. Goddard, T. Möller, N. Pietralla, M. Reese, C. Romig, D. Savran, L. Schnorrenberger, F. Siebenhühner, V. V. SimonK. Sonnabend, M. K. Smith, C. Walz, S. W. Yates, O. Yevetska, M. Zweidinger

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The dipole strength distribution of 76Se has been investigated via photon scattering in the energy region below 9 MeV utilizing bremsstrahlung produced at the S-DALINAC facility at the TU Darmstadt. About 0.20(1)% of the classical E1 sum rule is exhausted by observed J=1 states of justifiably assumed negative parity. An extrapolation of the GDR below 9 MeV suggests that considerable strength may remain unobserved due to background, finite detector resolution, and fragmentation. The observed strength thus represents a lower limit. Candidates for the 21,ms+ state and a fragment of the 1s+c mixed-symmetry states are presented.

Original languageEnglish
Article number034313
JournalPhysical Review C - Nuclear Physics
Volume86
Issue number3
DOIs
StatePublished - Sep 10 2012

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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