NSF PAR Search | NSF Public Access Repository

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

${}^{28}{Al}$ half-life measurement and the negative mirror asymmetry between the ${}^{28}{Al} (β^{-}) {}^{28 m}{Si}$ and ${}^{28}P (β^{+}) {}^{28 m}{Si}$ decays

https://doi.org/10.1103/wyxw-hbgd

Liu, B; Brodeur, M; Bardayan, D W; Becchetti, F D; Boomershine, C; Burdette, D P; Caves, L; Olivas-Gomez, O; Henderson, S L; Kolata, J J; et al (October 2025, Physical Review C)

Free, publicly-accessible full text available October 1, 2026
Probing the most important ${}^{14}O (α, p) {}^{17}F$ resonance through a study of ${}^{17}F (p, p^{'}) {}^{17}F^{*}$

https://doi.org/10.1103/bljj-k2nv

Coil, S; Bardayan, D W; O'Malley, P D; Bailey, T L; Boomershine, C; Carmichael, S; Dembski, C; Gore, T; Houff, A M; Jones, C; et al (September 2025, Physical Review C)

Free, publicly-accessible full text available September 1, 2026
Probabilistic neural networks for improved analyses with phenomenological $R$ -matrix

https://doi.org/10.1103/PhysRevC.110.054609

Kim, C H; Chae, K Y; Smith, M S; Bardayan, D W; Brune, C R; deBoer, R J; Lu, D; Odell, D (November 2024, Physical Review C)

Full Text Available
Object detection with deep learning for rare event search in the GADGET II TPC

https://doi.org/10.1016/j.nima.2025.170659

Wheeler, Tyler; Ravishankar, S; Wrede, C; Andalib, A; Anthony, A; Ayyad, Y; Jain, B; Jaros, A; Mahajan, R; Schaedig, L; et al (November 2025, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)

Free, publicly-accessible full text available November 1, 2026
${}^{28}{Si} (p, t) {}^{26}{Si}$ data reconsidered for the astrophysical ${}^{25}{Al} (p, γ) {}^{26}{Si}$ rate

https://doi.org/10.1103/PhysRevC.108.035804

Bardayan, D. W. (September 2023, Physical Review C)

Full Text Available
Experiments probing clustering effects in explosive nucleosynthesis

https://doi.org/10.3389/fphy.2023.1123868

Bardayan, D. W. (February 2023, Frontiers in Physics)

Nuclear clustering affects the nucleosynthesis occurring in a number of astrophysical environments. Highly-clusterized nuclear states typically occur near particle thresholds and therefore can produce dramatic impacts on the nuclear reaction rates. This is especially true for astrophysical explosions that are driven by the consumption of helium as fuel. Such burning can occur in X-ray bursts, supernovae type Ia, and core-collapse supernovae for instance. This article will focus on the explosive astrophysical events in which nuclear clustering is most important, will discuss the types of information and tools necessary to estimate the astrophysical reaction rates, and will discuss example experiments at Notre Dame and other facilities that have or will be performed to measure the critical nuclear data needed for such estimates.
more » « less
Full Text Available
The $$^{24}$$Mg($$\alpha$$,p)$$^{27}$$Al reaction measurement using solenoid spectrometer for nuclear astrophysics (SSNAP)

https://doi.org/10.1007/s40042-024-01083-x

Gu, G M; Chae, K Y; Cha, S M; Kwag, M S; Kim, M J; Allen, J; O’Malley, P D; Boeltzig, A; Clark, A M; Frentz, B; et al (May 2024, Journal of the Korean Physical Society)

Full Text Available
²⁰ Ne(α,p) ²³ Na studied to constrain type Ia nucleosynthesis

https://doi.org/10.1088/1742-6596/2586/1/012110

Boomershine, C N; Bardayan, D W; Carmichael, S; Caves, L; Davis, A; deBoer, R J; Gula, A; Howard, K; Kelmar, R; Mitchell, A; et al (September 2023, Journal of Physics: Conference Series)

Abstract The²⁰Ne(α,p)²³Na reaction rate is important in determining the final abundances of various nuclei produced in type Ia supernovae. Previously, the ground state cross section was calculated from time reversal reaction experiments using detailed balance. The reaction rates extracted from these studies do not consider contributions from the population of excited states, and therefore, are only estimates. A resonance scan, populating both the ground and first excited states, was performed for the²⁰Ne(α,p)²³Na reaction, measuring between 2.9 and 5 MeV center of mass energies at the Nuclear Science Lab at the University of Notre Dame. Data analysis is underway and preliminary results show substantial contribution from the excited state reaction.
more » « less
Full Text Available
Quantifying resonance behavior in the fusion of ${}^{17}O$ with ${}^{12}C$ at above-barrier energies

https://doi.org/10.1103/PhysRevC.107.064612

Hudan, S.; Johnstone, J. E.; Kumar, Rohit; deSouza, R. T.; Allen, J.; Bardayan, D. W.; Blankstein, D.; Boomershine, C.; Carmichael, S.; Clark, A.; et al (June 2023, Physical Review C)

Full Text Available
Indirect Measurement of the ³ He(n,p) ³ H Reaction Cross Section at Big Bang Energies

https://doi.org/10.3847/1538-4357/ad7f4f

Pizzone, R G; Sergi, M L; Oliva, A A; Zanatta-Martinez, T; Lamia, L; Spartá, R; Guardo, G L; La_Cognata, M; D’Agata, G; Palmerini, S; et al (November 2024, The Astrophysical Journal)

Abstract Neutron-induced nuclear reactions play an important role in the Big Bang Nucleosynthesis. Their excitation functions are, from an experimental point of view, usually difficult to measure. Nevertheless, in the last decades, big efforts have led to a better understanding of their role in the primordial nucleosynthesis network. In this work, we apply the Trojan Horse Method to extract the cross section at astrophysical energies for the³He(n,p)³H reaction after a detailed study of the²H(³He,pt)H three-body process. Data extracted from the present measurement are compared with other published sets. The reaction rate is also calculated, and the impact on the Big Bang nucleosynthesis is examined in detail.
more » « less
Full Text Available

« Prev Next »

Search for: All records