63 citations · 171 across the 17 of their papers we have counts for
17 papers
The 2025 Evaluation of Experimental Thermonuclear Reaction Rates (ETR25)
Christian Iliadis, Richard Longland, Kiana Setoodehnia +3
This work describes the formalism for estimating thermonuclear reaction rates for astrophysical applications, emphasizing modern statistical approaches such as Monte-Carlo sampling…
Bayesian Analysis of the Sr Reaction to Constrain the Sr Cross Section at Astrophysical Energies
Caleb Marshall, Taliah Lansing, David Gribble +3
The Alpha Optical Model Potential (\aomp \!) is a phenomenological approach used to describe elastic scattering where multiple reaction channels are open. It is one of the most cri…
Indirect Measurement of the Mg Direct Capture Reaction Rate via (He,d) Spectroscopy
Kaixin Song, Richard Longland, Caleb Marshall +3
The cross section of the reaction is dominated by direct capture at low energies relevant for stellar burning. Such cross sections can be constr…
Spin-parities of sub-threshold resonances in the F(p, )O reaction
F. Portillo, R. Longland, A. L. Cooper +4
The F(p, )O reaction is key to determining the F abundance in classical novae. However, the cross section for this reaction has large uncertainties at low e…
A Rate Model of Electron Populations for Non-linear High-Fluence X-ray Absorption Near-Edge Spectra
Robin Y. Engel, Markus Scholz, Jan O. Schunck +1
Absorbing a focused, femtosecond X-ray pulse from a Free-Electron Laser (FEL) can lead to extreme electronic excitations in solids. This excitation drives changes of the electronic…
Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra
Robin Y. Engel, Oliver Alexander, Kaan Atak +40
The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L…
Photon shot-noise limited transient absorption soft X-ray spectroscopy at the European XFEL
Loïc Le Guyader, Andrea Eschenlohr, Martin Beye +61
Femtosecond transient soft X-ray Absorption Spectroscopy (XAS) is a very promising technique that can be employed at X-ray Free Electron Lasers (FELs) to investigate out-of-equilib…
The impact of O reaction rate uncertainties on the s-process in rotating massive stars
J. Frost-Schenk, P. Adsley, A. M. Laird +9
Massive stars are crucial to galactic chemical evolution for elements heavier than iron. Their contribution at early times in the evolution of the Universe, however, is unclear due…
The 1-Megapixel pnCCD Detector for the Small Quantum Systems Instrument at the European XFEL: System and Operation Aspects
Markus Kuster, Karim Ahmed, Kai-Erik Ballak +21
The X-ray free-electron lasers that became available during the last decade, like the European XFEL (EuXFEL), place high demands on their instrumentation. Especially at low photon…
Study of the Mg(d,p)Mg reaction to constrain the Al(p,)Si resonant reaction rates in nova burning conditions
C. B. Hamill, P. J. Woods, D. Kahl +5
The rate of the Al(,)Si reaction is one of the few key remaining nuclear uncertainties required for predicting the production of the cosmic -ray emitter $^{2…
A study of Cl excited states via S()
Kiana Setoodehnia, John H. Kelley, Caleb Marshall +2
Presolar grains originating in oxygen-neon novae may be identified by their sulfur isotopic ratios compared with theoretical estimates. These ratios depend on reliable S($p,…
Excited states of Ca and their significance in nova nucleosynthesis
Kiana Setoodehnia, Caleb Marshall, Richard Longland +3
Background: Discrepancies exist between the observed abundances of argon and calcium in oxygen-neon nova ejecta and those predicted by nova models. An improved characterization of…
The Focal plane Detector Package on the TUNL Split-pole Spectrograph
Caleb Marshall, Kiana Setoodehnia, Katie Kowal +5
A focal plane detector for the Enge Split-pole Spectrograph at Triangle Universities Nuclear Laboratory has been designed. The detector package consists of two position sensitive g…
Constraining nova observables: direct measurements of resonance strengths in 33S(p,γ)34Cl
J. Fallis, A. Parikh, P. F. Bertone +32
The 33S(p,γ)34Cl reaction is important for constraining predictions of certain isotopic abundances in oxygen-neon novae. Models currently predict as much as 150 times the solar abu…
MESA and NuGrid simulations of classical novae: CO and ONe nova nucleosynthesis
Pavel A. Denissenkov, James W. Truran, Marco Pignatari +6
Classical novae are the result of thermonuclear flashes of hydrogen accreted by CO or ONe white dwarfs, leading eventually to the dynamic ejection of the surface layers. These are…
Nuclear structure of 30S and its implications for nucleosynthesis in classical novae
K. Setoodehnia, A. A. Chen, D. Kahl +29
The uncertainty in the 29P(p,gamma)30S reaction rate over the temperature range of 0.1 - 1.3 GK was previously determined to span ~4 orders of magnitude due to the uncertain locati…
Production of 26Al in stellar hydrogen-burning environments: spectroscopic properties of states in 27Si
A. Parikh, K. Wimmer, T. Faestermann +11
Model predictions of the amount of the radioisotope 26Al produced in hydrogen-burning environments require reliable estimates of the thermonuclear rates for the 26gAl(p,γ)27Si and…