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The relationship among nuclear structure, the weak processes in nuclei, and astrophysics becomes quite apparent in supernova explosion and nucleosynthesis studies. In this brief article, I report on progress made in the last few years on…

Nuclear Theory · Physics 2009-11-06 D. J. Dean

The neutron-rich isotopes with 30 $\leq$ Z $\leq$ 45 are thought to be synthesised in neutrino-driven winds after the collapse of a massive star. This nucleosynthesis scenario, called the weak r-process, is studied using nuclear reaction…

Neutrinos and their weak interactions play a vital role in the physics of core-collapse supernovae and binary neutron star mergers. Their description within astrophysical simulations, including the weak rates, is of pivotal importance not…

High Energy Astrophysical Phenomena · Physics 2026-05-19 Kamil Sokołowski , Anil Kumar , Tobias Fischer

The aim of this paper is to present a more complete consideration of the theoretical concepts and experimental aspects of the physics of photoproduction interactions involving nuclei. This treatment is based in large part on the most recent…

High Energy Astrophysical Phenomena · Physics 2025-09-04 Floyd W. Stecker

We calculate the steady-state properties of neutrino-driven winds from strongly magnetized, rotating proto-neutron stars (`proto-magnetars') under the assumption that the outflow geometry is set by the force-free magnetic field of an…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Andrey D. Vlasov , Brian D. Metzger , Todd A. Thompson

We study the effects of collective neutrino oscillations on $\nu p$ process nucleosynthesis in proton-rich neutrino-driven winds by including both the multi-angle $3\times3$ flavor mixing and the nucleosynthesis network calculation. The…

High Energy Astrophysical Phenomena · Physics 2017-09-13 H. Sasaki , T. Kajino , T. Takiwaki , T. Hayakawa , A. B. Balantekin , Y. Pehlivan

The rapid neutron-capture process ($r$-process) has for the first time been confirmed to take place in a neutron-star merger event. A detailed understanding of the rapid neutron-capture process is one of the holy grails in nuclear…

Nuclear Theory · Physics 2018-01-24 I. K. B. Kullmann , E. W. Hafli , A. C. Larsen , E. Lima

If the r-process occurs deep within a Type II supernova, probably the most popular of the proposed sites, abundances of r-process elements may be altered by the intense neutrino flux. We point out that the effects would be especially…

Astrophysics · Physics 2009-10-28 W. C. Haxton , K. Langanke , Y. -Z. Qian , P. Vogel

We investigated r-process nucleosynthesis in magneto-rotational supernovae, based on a new explosion mechanism induced by the magneto-rotational instability. A series of axisymmetric magneto-hydrodynamical simulations with detailed…

High Energy Astrophysical Phenomena · Physics 2017-02-16 Nobuya Nishimura , Hidetomo Sawai , Tomoya Takiwaki , Shoichi Yamada , Friedrich-Karl Thielemann

We present our recent progress on the relativistic modeling of neutrino-nucleus reactions for their implementation in MonteCarlo event generators (GENIE, NEUT) employed in neutrino oscillation experiments. We compare charged-current…

High Energy Physics - Phenomenology · Physics 2019-09-06 G. D. Megias , S. Dolan , S. Bolognesi

Understanding nuclear effects is essential for improving the sensitivity of neutrino oscillation measurements. Validating nuclear models solely through neutrino scattering data is challenging due to limited statistics and the broad energy…

High Energy Physics - Phenomenology · Physics 2025-02-25 Seisho Abe

The $s$-process in massive stars produces the weak component of the $s$-process (nuclei up to $A \sim 90$), in amounts that match solar abundances. For heavier isotopes, such as barium, production through neutron capture is significantly…

Solar and Stellar Astrophysics · Physics 2017-05-26 Nobuya Nishimura , Raphael Hirschi , Thomas Rauscher , Alexander St. J. Murphy , Gabriele Cescutti

One of the greatest questions for modern physics to address is how elements heavier than iron are created in extreme, astrophysical environments. A particularly challenging part of that question is the creation of the so-called p-nuclei,…

Core collapse supernovae are dominated by energy transport from neutrinos. Therefore, some supernova properties could depend on symetries and features of the standard model weak interactions. The cross section for neutrino capture is larger…

Astrophysics · Physics 2015-06-24 C. J. Horowitz , Gang Li

The formation of the third r-process abundance peak near A = 195 is highly sensitive to both nuclear structure far from stability and the astrophysical conditions that produce the heaviest elements. In particular, the N = 126 shell closure…

Nuclear Theory · Physics 2025-10-06 Mengke Li , Gail C. McLaughlin , Rebecca Surman

The rapid neutron-capture process (r-process) is responsible for the creation of roughly half of the elements heavier than iron, including precious metals like silver, gold, and platinum, as well as radioactive elements such as thorium and…

Solar and Stellar Astrophysics · Physics 2025-07-14 Avrajit Bandyopadhyay , Timothy C. Beers

The propagation of uncertainties in reaction cross sections and rates of neutron-, proton-, and alpha-induced reactions into the final isotopic abundances obtained in nucleosynthesis models is an important issue in studies of…

High Energy Astrophysical Phenomena · Physics 2025-01-07 T. Rauscher , N. Nishimura , G. Cescutti , R. Hirschi , A. St. J. Murphy , C. Travaglio

We study the nucleosyntheses of the light elements 7Li and 11B and the r-process elements in Type II supernovae from the point of view of supernova neutrinos and Galactic chemical evolution. We investigate the influence of the luminosity…

Astrophysics · Physics 2009-11-07 T. Yoshida , M. Terasawa , T. Kajino , K. Sumiyoshi

I compare seven actively studied r-process nucleosynthesis scenarios against observed properties of r-process elements in the early Universe, and conclude that the most likely scenario to contribute to the site of elements below the third…

High Energy Astrophysical Phenomena · Physics 2026-05-12 Noam Soker

The precise calculation of alpha-induced neutron-emission ($\alpha$,n) reaction rates is fundamental to understanding nucleosynthesis in diverse stellar environments. This study investigates the nuclear reaction rates for various…

Nuclear Theory · Physics 2025-11-25 Bhavay Luthra , N. J. Upadhyay