List of works by Sunniva Siem

1−and2+discrete states inZr90populated via the(O17,O′17γ)reaction

scholarly article

A new fission-fragment detector to complement the CACTUS-SiRi setup at the Oslo Cyclotron Laboratory

A recoverable gas-cell diagnostic for the National Ignition Facility

scientific article published on November 2016

Analysis of possible systematic errors in the Oslo method

scholarly article

Angular momentum limit of Hf isotopes produced in three fusion–evaporation reactions

Astrophysical Reaction Rates and the Low-energy Enhancement in the γ Strength

Charged particle feeding of hyperdeformed nuclei in the A=118–126 region

Collective nature of low-lying excitations in70,72,74Zn from lifetime measurements using the AGATA spectrometer demonstrator

article

Competition between collective and noncollective excitation modes at high spin inBa124

article

Completing the nuclear reaction puzzle of the nucleosynthesis ofMo92

scholarly article

Constant-temperature level densities in the quasicontinuum of Th and U isotopes

scholarly article

Coulomb excitation of 107Sn

Coulomb excitation of the odd-odd isotopes 106, 108In

Coulomb excitation of107In

scholarly article

Do light nuclei display a universalγ-ray strength function?

Electric quadrupole moments of the21+states inCd100,102,104

scholarly article

Energy dependence of the prompt γ -ray emission from the (d,p) -induced fission of U*234 and Pu*240

scholarly article

Equilibrium and pre-equilibrium processes in theMn55(Li6,xp) andFe57(α,xp) reactions

scholarly article

Evidence for octupole correlations inBa124,125

scholarly article

Evolution of nuclear shapes in odd-mass yttrium and niobium isotopes from lifetime measurements following fission reactions

scientific article published on 3 March 2017

Evolution of the pygmy dipole resonance in Sn isotopes

scholarly article

Examination of the low-energy enhancement of the γ -ray strength function of Fe56

scholarly article

Excitation strengths in109Sn: Single-neutron and collective excitations near100Sn

scholarly article

Experimental Neutron Capture Rate Constraint Far from Stability

scientific article published on 16 June 2016

Experimental differential cross sections, level densities, and spin cutoffs as a testing ground for nuclear reaction codes

scholarly article

Experimental level densities of atomic nuclei

Experimentally constrained(p,γ)Y89and(n,γ)Y89reaction rates relevant top-process nucleosynthesis

article by Ann-Cecilie Larsen et al published 21 April 2016 in Physical Review C

Extraction of thermal and electromagnetic properties inTi45

scholarly article

Fermi’s golden rule applied to theγdecay in the quasicontinuum ofTi46

scholarly article

First evidence of low energy enhancement in Ge isotopes

First simultaneous measurement of fission and gamma probabilities of237U and239Np via surrogate reactions

Galactic production of 138 La: Impact of 138,139 La statistical properties

Gamma Decay of the Possible $1^-$ Two-phonon State in $^{140}$Ce Excited via Inelastic Scattering of $^{17}$O

Gamma-ray strength functions and their relation to astrophysics

High-K, t1/2 = 1.4(1)ms, isomeric state inLr255

scholarly article

Indirect (n,γ) cross sections of thorium cycle nuclei using the surrogate method

scholarly article by J. N. Wilson et al published 15 March 2012 in Physical Review C

Investigating the γ decay of Ni65 from particle- γ coincidence data

scholarly article

Investigation of theU238(d,p)surrogate reaction via the simultaneous measurement ofγ-decay and fission probabilities

scholarly article

La137,138,139(n,γ) cross sections constrained with statistical decay properties of La138,139,140 nuclei

article by B. V. Kheswa et al published 21 April 2017 in Physical Review C

Level Densities andγStrength Functions in Light Sc and Ti Isotopes

Level Densities in the actinide region and indirect n,y cross section measurements using the surrogate method

Level densities and thermodynamical properties of Pt and Au isotopes

scholarly article

Level densities andγ-ray strength functions in Sn isotopes

scholarly article

Level density andγ-ray strength function in the odd-oddNp238nucleus

scholarly article

Lifetime Measurements and Coulomb Excitation of Light Hg Nuclei

Lifetime Measurements of Zn Isotopes Around N = 40

article

Lifetime Measurments of Excited States in Neutron-rich Fission Fragments

scientific article published in 2016

Lifetime measurement for the21+state inSm140and the onset of collectivity in neutron-deficient Sm isotopes

scholarly article

Lifetime measurements on fission fragments in the A ∼ 100 region

scientific article published in 2013

Low-energy Coulomb excitation of Sr96,98 beams

scholarly article

Low-energy enhancement and fluctuations ofγ-ray strength functions in56,57Fe: test of the Brink–Axel hypothesis

Low-energy enhancement in theγ-ray strength functions ofGe73,74

scholarly article

Low-energy enhancement of nuclearγstrength and its impact on astrophysical reaction rates

Measurement of the sign of the spectroscopic quadrupole moment for the 2(1)+ state in 70Se: no evidence for oblate shape.

scientific article

Multitude of2+discrete states inSn124observed via the(O17,O′17γ)reaction: Evidence for pygmy quadrupole states

scholarly article

Nature of low-lying electric dipole resonance excitations inGe74

scholarly article

Neutron-induced cross sections of actinides via the surrogate-reaction method

Neutron-induced cross sections of actinides via the surrogate-reaction method

Nuclear level densities and gamma-ray strength functions of145,149,151Nd isotopes

Nuclear level densities and γ-ray strength functions of 180,181Ta and neutron capture cross sections

Nuclear level density andγ-ray strength function of43Sc

scholarly article

Observation of Large Orbital Scissors Strength in Actinides

Observation of large scissors resonance strength in actinides.

scientific article

Observation of low-lying resonances in the quasicontinuum of195,196Pt and enhanced astrophysical reaction rates

Octupole signatures in 124,125Ba

Onset of collectivity in neutron-rich Sr and Kr isotopes: Prompt spectroscopy after Coulomb excitation at REX-ISOLDE, CERN

article

Onset of collectivity in96,98Sr studied via Coulomb excitation

article

Primaryγ-ray spectra in44Ti of astrophysical interest

scholarly article

Probing collectivity in Zn isotopes with one particle or hole outside theN=40subshell closure

article

Production and Study of Neutron-rich Nuclei Using the LICORNE Directional Neutron Source

Properties of warm nuclei in the quasi-continuum

article

Pygmy dipole resonance in 124 Sn populated by inelastic scattering of 17 O

Pygmy dipole resonance inCe140via inelastic scattering ofO17

scholarly article

Pygmy resonance and low-energy enhancement in theγ-ray strength functions of Pd isotopes

scholarly article

Quasicontinuum γ decay of Zr91,92 : Benchmarking indirect ( n,γ ) cross section measurements for the s process

scholarly article

Resonances in odd-odd 182Ta

Scissors resonance in the quasicontinuum of Th, Pa, and U isotopes

scholarly article

Scissors strength in the quasi-continuum of actinides

Shell evolution beyondN=40:Cu69,71,73

article

Shell-gap-reduced level densities inY89,90

scholarly article

Soft structures ofγ-ray strength functions studied with the Oslo method

Spectroscopy and single-particle structure of the odd- Z heavy elements 255Lr, 251Md and 247Es

article

Spectroscopy of 253No and its daughters

Spectroscopy of Low-lying States in $^{140}$Sm

Spectroscopy of transfermium nuclei using the GABRIELA set up at the focal plane of the VASSILISSA recoil separator

Spectroscopy of transfermium nuclei using the GABRIELA set up at the focal plane of the VASSILISSA recoil separator

Statistical gamma-ray decay studies at iThemba LABS

Statistical gamma-ray emission of gold and its astrophysical implications

Statistical nuclear properties and synthesis of138La

article published in 2015

Statistical properties ofPu243, andPu242(n,γ)cross section calculation

scholarly article

Statistical γ -decay properties of Ni64 and deduced ( n,γ ) cross section of the s -process branch-point nucleus Ni63

article

Strong Neutron-γ Competition above the Neutron Threshold in the Decay of ^{70}Co

scientific article published on 29 September 2016

Structure of low-lying states inSm140studied by Coulomb excitation

scholarly article

Studies of fission fragment yields via high-resolution γ-ray spectroscopy

Study of the soft dipole modes in 140Ce via inelastic scattering of 17O

Study of theγdecay of high-lying states in208Pb via inelastic scattering of 17O ions

Sub-Barrier Coulomb Excitation of [sup 106,108,110]Sn

The statistical properties of111,112,113Sn studied with the Oslo method

Transitionalγstrength in Cd isotopes

scholarly article

Two-Particle Separation Energies in the Superdeformed Well

Two-particle separation energy trends in the superdeformed well

scientific article published on 20 April 2010

Upbend and M1 Scissors Mode in Neutron-rich Nuclei --- Consequences for r-process $(n,\gamma )$ Reaction Rates

Validity of the Generalized Brink-Axel Hypothesis in (238)Np.

scientific article published on 8 January 2016

γdecay from the quasicontinuum ofAu197,198

scholarly article