Publications (82)
Observation of Thermodynamical Properties in the $^{162}$Dy, $^{166}$Er and $^{172}$Yb Nuclei
E. Melby, L. Bergholt, M. Guttormsen +7
First evidence of enhanced low-energy $γ$-ray strength from thermal neutron capture data
L. Crespo Campo, R. B. Firestone, B. A. Brown +2
Evolution of level density step structures from 56,57-Fe to 96,97-Mo
A. Schiller, E. Tavukcu, L. A. Bernstein +9
Observation of double pygmy resonances in $^{195,196}$Pt and enhanced astrophysical reaction rates
F. Giacoppo, F. L. Bello Garrote, T. K. Eriksen +12
Thermodynamic Properties of $^{56,57}$Fe
E. Algin, U. Agvaanluvsan, M. Guttormsen +6
Nuclear level densities and gamma-ray strength functions of $^{180,181,182}$Ta
C. P. Brits, K. L. Malatji, M. Wiedeking +24
Determination of the electromagnetic character of soft dipole modes solely based on quasicontinuous gamma spectroscopy
A. Voinov, A. Schiller, M. Guttormsen +2
Critical temperature for quenching of pair correlations
A. Schiller, A. Bjerve, M. Guttormsen +7
Novel Techniques for Constraining Neutron-Capture Rates Relevant for r-Process Heavy-Element Nucleosynthesis
A. C. Larsen, A. Spyrou, S. N. Liddick +1
The SiRi Particle-Telescope System
M. Guttormsen, A. Bürger, T. E. Hansen +1
Enhanced radiative strength in the quasi-continuum of 117Sn
U. Agvaanluvsan, A. C. Larsen, R. Chankova +5
Establishment of M1 multipolarity of a 6.5 mu_N^2 resonance in 172-Yb at E_gamma=3.3 MeV
A. Schiller, A. Voinov, E. Algin +7
Low-energy enhancement and fluctuations of $γ$-ray strength functions in $^{56,57}$Fe: test of the Brink-Axel hypothesis
A. C. Larsen, M. Guttormsen, N. Blasi +21
Transitional $γ$ strength in Cd isotopes
A. C. Larsen, I. E. Ruud, A. Bürger +12
Is the generalized Brink-Axel hypothesis valid?
M. Guttormsen, A. C. Larsen, A. Görgen +4
Level densities and $γ$-ray strength functions in Sn isotopes
H. K. Toft, A. C. Larsen, U. Agvaanluvsan +8
Heat capacity and pairing transition in nuclei
M. Guttormsen, M. Hjorth-Jensen, E. Melby +3
Radiative strength functions in 93-98Mo
M. Guttormsen, R. Chankova, U. Agvaanluvsan +12
Verification of detailed balance for $γ$ absorption and emission in Dy isotopes
T. Renstrøm, H. Utsunomiya, H. T. Nyhus +13
Low-energy enhancement in the γ-ray strength functions of $^{73,74}$Ge
T. Renstrøm, H. -T. Nyhus, H. Utsumoniya +22
Quasicontinuum $γ$-decay of $^{91,92}$Zr: benchmarking indirect ($n,γ$) cross section measurements for the $s$-process
M. Guttormsen, S. Goriely, A. C. Larsen +10
Novel technique for constraining r-process (n,$γ$) reaction rates
A. Spyrou, S. N. Liddick, A. C. Larsen +12
Thermal and electromagnetic properties of 166-Er and 167-Er
E. Melby, M. Guttormsen, J. Rekstad +3
Enhanced low-energy $γ$-decay strength of $^{70}$Ni and its robustness within the shell model
A. C. Larsen, J. E. Midtbø, M. Guttormsen +19
Entropy of thermal quasiparticles in nuclei
M. Guttormsen, M. Hjorth-Jensen, E. Melby +3
Statistical properties of $^{243}$Pu, and $^{242}$Pu(n,$γ$) cross section calculation
T. A. Laplace, F. Zeiser, M. Guttormsen +24
Level densities and $γ$-strength functions in $^{148,149}$Sm
S. Siem, M. Guttormsen, K. Ingeberg +4
Statistical structure and $γ$-decay properties of closed shell Pb nuclei
N. U. H. Syed, M. Guttormsen, F. Ingebretsen +6
First experimental constraint on the $^{191}$Os$(n,γ)$ reaction rate relevant to $s$-process nucleosynthesis
I. K. B. Kullmann, A. C. Larsen, T. Renstrø m +10
Evidence for the pair-breaking process in 116,117Sn
U. Agvaanluvsan, A. C. Larsen, M. Guttormsen +5
Analysis of possible systematic errors in the Oslo method
A. C. Larsen, M. Guttormsen, M. Krticka +11
Gamma-strength functions in 60Ni from two-step cascades following proton capture
A. Voinov, S. M. Grimes, C. R. Brune +5
Experimental level densities of atomic nuclei
M. Guttormsen, M. Aiche, F. L. Bello Garrote +24
Validity of the generalized Brink-Axel hypothesis in $^{238}$Np
M. Guttormsen, A. C. Larsen, A. Görgen +4
Primary gamma-ray spectra in 44Ti of astrophysical interest
A. C. Larsen, S. Goriely, A. Bürger +18
Caloric curves of atomic nuclei and other small systems
A. Schiller, M. Guttormsen, M. Hjorth-Jensen +2
Radiative strength functions in 163,164Dy
H. T. Nyhus, S. Siem, M. Guttormsen +5
Evolution of the pygmy dipole resonance in Sn isotopes
H. K. Toft, A. C. Larsen, A. Bürger +7
Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum
M. Guttormsen, A. C. Larsen, J. E. Midtbø +8
Observation of the scissors mode in the quasicontinuum
A. Schiller, M. Guttormsen, E. Melby +3
Fermi's golden rule applied to the gamma decay in the quasicontinuum of 46Ti
M. Guttormsen, A. C. Larsen, A. Buerger +17
Thermal properties and radiative strengths in 160,161,162Dy
M. Guttormsen, A. Bagheri, R. Chankova +4
The gamma-ray strength function of $^{89}$Y and $^{90}$Y
G. M. Tveten, T. Renstrøm, A. C. Larsen +26
Level densities and thermodynamical properties of Pt and Au isotopes
F. Giacoppo, F. L. Bello Garrote, L. A. Bernstein +15
Experimentally constrained ($p,γ$)$^{89}$Y and ($n,γ$)$^{89}$Y reaction rates relevant to the $p$-process nucleosynthesis
A. C. Larsen, M. Guttormsen, R. Schwengner +18
First observation of low-energy γ-ray enhancement in the rare-earth region
A. Simon, M. Guttormsen, A. C. Larsen +14
Constant-temperature level densities in the quasi-continuum of Th and U isotopes
M. Guttormsen, B. Jurado, J. N. Wilson +16
Model for pairing phase transition in atomic nuclei
A. Schiller, M. Guttormsen, M. Hjorth-Jensen +2
Extraction of thermal and electromagnetic properties in 45Ti
N. U. H. Syed, A. C. Larsen, A. B. Bürger +13
Measurements of Nuclear Level Densities and Gamma-Ray Strength Functions and their Interpretations
M. Guttormsen, M. Hjorth-Jensen, J. Rekstad +3
Study of the 238U(d,p) surrogate reaction via the simultaneous measurement of gamma-decay and fission probabilities
Q. Ducasse, B. Jurado, M. Aïche +26
Level densities and thermodynamical quantities of heated 93-98Mo isotopes
R. Chankova, A. Schiller, U. Agvaanluvsan +12
Experimental $γ$-decay strength in $^{59, 60}$Ni compared with microscopic calculations
T. Renstrøm, G. M. Tveten, J. E. Midtbø +20
Understanding the Low-Energy Enhancement of the $γ$-ray Strength Function of $^{56}$Fe
M. D. Jones, A. O. Macchiavelli, M. Wiedeking +27
Observation of a first-order pairing phase transition in atomic nuclei
L. G. Moretto, A. C. Larsen, F. Giacoppo +3
Energy shifted level densities in the rare earth region
M. Guttormsen, M. Hjorth-Jensen, E. Melby +3
Nature of low-lying electric dipole resonance excitations in 74Ge
D. Negi, M. Wiedeking, E. G. Lanza +32
Nuclear Level Density and Gamma-Ray Strength Function of 43Sc
A. Bürger, A. C. Larsen, S. Hilaire +14
Entropy in hot ^{161,162}Dy and ^{171,172}Yb nuclei
M. Guttormsen, A. Bjerve, M. Hjorth-Jensen +5
Breaking of nucleon Cooper pairs at finite temperature in 93-98Mo
K. Kaneko, M. Hasegawa, U. Agvaanluvsan +9
Free energy and criticality in the nucleon pair breaking process
M. Guttormsen, R. Chankova, M. Hjorth-Jensen +4
Photoneutron cross sections for Ni isotopes: Toward understanding $(n,γ)$ cross sections relevant to the weak s-process nucleosynthesis
H. Utsunomiya, T. Renstrøm, G. M. Tveten +19
Energy dependence of the prompt $γ$-ray emission from the $(d,p)$-induced fission of $^{234}\mathrm{U}^{*}$ and $^{240}\mathrm{Pu}^{*}$
S. J. Rose, F. Zeiser, J. N. Wilson +22
Scissors resonance in the quasi-continuum of Th, Pa and U isotopes
M. Guttormsen, L. A. Bernstein, A. Görgen +16
Level density and thermal properties in rare earth nuclei
A. Schiller, M. Guttormsen, M. Hjorth-Jensen +3
Shell-gap reduced level densities in $^{89,90}$Y
M. Guttormsen, A. C. Larsen, F. L. Bello Garrote +14
Evidence for dipole nature of the low-energy $γ$ enhancement in $^{56}$Fe
A. C. Larsen, N. Blasi, A. Bracco +16
Nuclear level densities and gamma-ray strength functions in 44,45Sc
A. C. Larsen, M. Guttormsen, R. Chankova +8
Large enhancement of radiative strength for soft transisitons in the quasicontinuum
A. Voinov, E. Algin, U. Agvaanluvsan +7
Completing the nuclear reaction puzzle of the nucleosynthesis of 92Mo
G. M. Tveten, A. Spyrou, R. Schwengner +20
Level density of $^{56}$Fe and low-energy enhancement of $γ$-strength function
A. V. Voinov, S. M. Grimes, U. Agvaanluvsan +10
Equilibrium and pre-equilibrium processes in the 55Mn(6Li,xp) and 57Fe(a,xp) reactions
A. V. Voinov, S. M. Grimes, C. R. Brune +7
Radiative strength function in 96Mo reanalyzed
M. Guttormsen, R. Chankova, U. Agvaanluvsan +12
Gamma-ray strength function and pygmy resonance in rare earth nuclei
A. Voinov, M. Guttormsen, E. Melby +3
Extraction of level density and gamma strength function from primary gamma spectra
A. Schiller, L. Bergholt, M. Guttormsen +3
Nuclear level densities and gamma-ray strength functions in samarium isotopes
F. Naqvi, A. Simon, M. Guttormsen +8
Level densities and $γ$-ray strength functions in $^{170,171,172}$Yb
U. Agvaanluvsan, A. Schiller, J. A. Becker +8
Level density and gamma strength function in 162-Dy from inelastic 3-He scattering
A. Schiller, M. Guttormsen, E. Melby +2
Observation of large scissors resonance strength in actinides
M. Guttormsen, L. A. Bernstein, A. Bürger +8
Primary versus secondary gamma intensities in 171Yb(n_th,gamma)
A. Schiller, A. Voinov, E. Algin +6
Microcanonical entropies and radiative strength functions of $^{50,51}$V
A. C. Larsen, R. Chankova, M. Guttormsen +9
Level density and $γ$-ray strength in $^{27,28}$Si
M. Guttormsen, E. Melby, J. Rekstad +4