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1.

Large enhancement of radiative strength for soft transitions in the quasicontinuum.

Voinov, A; Algin, E; Agvaanluvsan, U; Belgya, T; Chankova, R; Guttormsen, M; Mitchell, G E; Rekstad, J; Schiller, A; Siem, S.

Phys Rev Lett ; 93(14): 142504, 2004 Oct 01.

Article in English | MEDLINE | ID: mdl-15524787

ABSTRACT

Radiative strength functions (RSFs) for the (56,57)Fe nuclei below the separation energy are obtained from the 57Fe(3He,alphagamma)56Fe and 57Fe(3He,3He'gamma)57Fe reactions, respectively. An enhancement of more than a factor of 10 over common theoretical models of the soft (E(gamma) less than or approximately equal 2 MeV) RSF for transitions in the quasicontinuum (several MeV above the yrast line) is observed. Two-step cascade intensities with soft primary transitions from the 56Fe(n,2gamma)57Fe reaction confirm the enhancement.

2.

Observation of Fine Structure in Nuclear Level Densities and gamma -Ray Strength Functions.

Tveter TS; Bergholt L; Guttormsen M; Melby E; Rekstad J.

Phys Rev Lett ; 77(12): 2404-2407, 1996 Sep 16.

Article in English | MEDLINE | ID: mdl-10061945

3.

Delta K forbiddenness in neutron capture resonances in 177Lu.

Sheline RK; Bergholt L; Guttormsen M; Rekstad J; Tveter TS.

Phys Rev C Nucl Phys ; 51(6): 3078-3083, 1995 Jun.

Article in English | MEDLINE | ID: mdl-9970408

4.

K dependence in the gamma decay of neutron resonances in 166Ho.

Bergholt L; Guttormsen M; Rekstad J; Tveter TS; Sheline RK.

Phys Rev C Nucl Phys ; 50(1): 493-496, 1994 Jul.

Article in English | MEDLINE | ID: mdl-9969684

5.

K dependence in the gamma decay of neutron resonances in 168Er and 178Hf.

Rekstad J; Tveter TS; Guttormsen M; Bergholt L.

Phys Rev C Nucl Phys ; 47(6): 2621-2634, 1993 Jun.

Article in English | MEDLINE | ID: mdl-9968737

6.

Rekstad, Tveter, and Guttormsen reply.

Rekstad J; Tveter TS; Guttormsen M.

Phys Rev Lett ; 67(16): 2236, 1991 Oct 14.

Article in English | MEDLINE | ID: mdl-10044374

7.

Chaos in nuclei and the K quantum number.

Rekstad J; Tveter TS; Guttormsen M.

Phys Rev Lett ; 65(17): 2122-2124, 1990 Oct 22.

Article in English | MEDLINE | ID: mdl-10042459

ABSTRACT

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