Analysis of possible systematic errors in the Oslo method

Abstract

In this work, we have reviewed the Oslo method, which enables the simultaneous extraction of level density and gamma-ray transmission coefficient from a set of particle-gamma coincidence data. Possible errors and uncertainties have been investigated. Typical data sets from various mass regions as well as simulated data have been tested against the assumptions behind the data analysis.

23 pages, 33 figures. As published in Phys. Rev. C

References in corpus (22)

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Cited by in corpus (53)

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• Novel technique for constraining r-process (n,$\gamma$) reaction rates
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• Scissors resonance in the quasi-continuum of Th, Pa and U isotopes
• Novel Techniques for Constraining Neutron-Capture Rates Relevant for r-Process Heavy-Element Nucleosynthesis
• Validity of the generalized Brink-Axel hypothesis in ${}^{238}$Np
• Evolution of the pygmy dipole resonance in Sn isotopes
• Observation of large scissors resonance strength in actinides
• Verification of detailed balance for $\gamma$ absorption and emission in Dy isotopes
• Constant-temperature level densities in the quasi-continuum of Th and U isotopes
• Transitional $\gamma$ strength in Cd isotopes
• Experimental level densities of atomic nuclei
• Nuclear Level Density: Shell Model vs Mean Field
• Low-energy enhancement in the γ-ray strength functions of ${}^{73,74}$Ge
• Independent Normalization for $\gamma$-ray Strength Functions: The Shape Method
• Experimentally constrained ($p,\gamma$)${}^{89}$Y and ($n,\gamma$)${}^{89}$Y reaction rates relevant to the $p$-process nucleosynthesis
• Enhanced low-energy $\gamma$-decay strength of ${}^{70}$Ni and its robustness within the shell model
• Photoneutron cross sections for Ni isotopes: Toward understanding $(n,\gamma )$ cross sections relevant to the weak s-process nucleosynthesis
• Influence of complete energy sorting on the characteristics of the odd-even effect in fission-fragment element distributions
• Statistical properties of ${}^{243}$Pu, and ${}^{242}$Pu(n,$\gamma$) cross section calculation
• Low-energy enhancement and fluctuations of $\gamma$-ray strength functions in ${}^{56,57}$Fe: test of the Brink-Axel hypothesis
• Quasicontinuum $\gamma$-decay of ${}^{91,92}$Zr: benchmarking indirect ($n,\gamma$) cross section measurements for the $s$-process
• The energy response of the Oslo Scintillator Array OSCAR
• Nuclear Level Density and Gamma-Ray Strength Function of 43Sc
• RAINIER: A Simulation Tool for Distributions of Excited Nuclear States and Cascade Fluctuations
• Comprehensive test of nuclear level density models
• Nuclear level densities and gamma-ray strength functions in samarium isotopes
• Completing the nuclear reaction puzzle of the nucleosynthesis of 92Mo
• Level densities and thermodynamical properties of Pt and Au isotopes
• Nuclear level densities and $\gamma$-ray strength functions in ${}^{120,124}$Sn isotopes: impact of Porter-Thomas fluctuations
• Primary gamma-ray spectra in 44Ti of astrophysical interest
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• Statistical properties of the well deformed ${}^{153,155}$Sm nuclei and the scissors resonance
• A new software implementation of the Oslo method with rigorous statistical uncertainty propagation
• Shell-gap reduced level densities in ${}^{89,90}$Y
• First experimental constraint on the ${}^{191}$Os$(n,\gamma )$ reaction rate relevant to $s$-process nucleosynthesis
• Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments
• Nuclear level densities and $\gamma -$ray strength functions of ${}^{111,112,113}$Sn isotopes studied with the Oslo method
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• Experimentally constrained ${}^{165,166}\text{Ho}(n,\gamma )$ rates and implications for the $s$ process
• Projected shell model description of nuclear level density: Collective, pair-breaking, and multiquasiparticle regimes in even-even nuclei
• Nuclear Level Density and $\gamma$-ray Strength Function of ${}^{67}\mathrm{Ni}$ and the impact on the i-process
• New experimental constraint on the ${}^{185}$W($n,\gamma$)${}^{186}$W cross section
• Unfolding of sparse high-energy $\gamma$-ray spectra from LaBr${}_3$:Ce detectors
• Nuclear level density of ${}^{128}$Te from $(\mathrm{p},{\mathrm{p}}^{\prime }\gamma )$ scattering and complementary photonuclear data
• Cross sections for neutron-induced reactions from surrogate data: revisiting the Weisskopf-Ewing approximation for $(n,n^{\prime })$ and $(n,2n)$ reactions
• Impact of restricted spin-ranges in the Oslo Method: The example of (d,p)${}^{240}\mathrm{Pu}$
• Extraction of neutron-capture cross sections on ${}^{92}$Zr using the charge-exchange Oslo method
• Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum
• Comprehensive test of the Brink-Axel hypothesis in the energy region of the pygmy dipole resonance
• The beta-Oslo method: experimentally constrained ($n,\gamma$) reaction rates relevant to the $r$-process
• Nuclear level densities and $\gamma$-ray strength functions of ${}^{87}\mathrm{Kr}$ -- First application of the Oslo Method in inverse kinematics