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The type II supernova is considered as a candidate site for the production of heavy elements. Since the supernova produces an intense neutrino flux, neutrino scattering processes will impact element formation. We examine active-sterile…

High Energy Physics - Phenomenology · Physics 2009-10-31 G. C. McLaughlin

We use a Glauber-like approach to describe very energetic nucleus-nucleus collisions as a sequence of binary nucleon-nucleon collisions. No free parameters are needed: all the information comes from simple parametrizations of…

Nuclear Theory · Physics 2008-11-26 Sangyong Jeon , Joseph Kapusta

We have investigated light nuclei pair photoproduction in relativistic heavy ion ultraperipheral collisions. As a first attempt, we employ our previously developed quantum electrodynamics model, which incorporates a wave-packet description…

High Energy Physics - Phenomenology · Physics 2024-07-09 Jin-Yu Hu , Shuo Lin , Shi Pu , Qun Wang

The rapid neutron-capture process needed to build up many of the elements heavier than iron seems to take place primarily in neutron-star mergers, not supernova explosions.

Solar and Stellar Astrophysics · Physics 2023-07-19 Anna Frebel , Timothy C. Beers

The production of light nuclei and hyper-nuclei in heavy-ion collisions, particularly at high baryon density, is crucial for understanding the dynamical evolution of the collision system and exploring the internal state of nuclear matter of…

Nuclear Theory · Physics 2024-07-24 L. K. Liu , C. L. Hu , X. H. He , S. S. Shi , G. N. Xie

A new model that includes the time-dependent dynamics of the single-particle (s.p.) motion in conjunction with the macroscopic evolution of the system is proposed for describing the compound nucleus (CN) formation in fusion of heavy nuclei.…

Nuclear Theory · Physics 2009-11-10 Alexis Diaz-Torres

We calculate the photonuclear production of heavy quarks in ultraperipheral heavy ion collisions. The integrated cross section and the rapidity distribution are computed employing sound high energy QCD formalisms as the collinear and…

High Energy Physics - Phenomenology · Physics 2010-11-30 V. P. Goncalves , M. V. T. Machado

Results of charge form factors calculations for several unstable neutron-rich isotopes of light, medium and heavy nuclei (He, Li, Ni, Kr, Sn) are presented and compared to those of stable isotopes in the same isotopic chain. For the lighter…

The quest for the origin of the chemical elements, which we find in our body, in our planet (Earth), in our star (Sun), or in our galaxy (Milky Way) could only be resolved with a thorough understanding of the nuclear physics properties of…

Nuclear Experiment · Physics 2018-03-26 René Reifarth , David Brown , Saed Dababneh , Yuri A. Litvinov , Shea M. Mosby

Total cross sections for neutron scattering from nuclei, with energies ranging from 10 to 600 MeV and from many nuclei spanning the mass range 6Li to 238U, have been analyzed using a simple, three-parameter, functional form. The calculated…

Nuclear Theory · Physics 2007-05-23 Pradip Deb , Ken Amos , Steven Karataglidis

Vector mesons are copiously produced in ultra-peripheral nucleus-nucleus collisions. In these collisions, the nuclei are separated by impact parameters larger than the sum of the nuclear radii, and the interaction is mediated by the…

Nuclear Experiment · Physics 2019-08-13 Joakim Nystrand

We investigate deuteron formation in nuclear matter at finite temperatures within a systematic quantum statistical approach. We consider formation through three-body collisions relevant already at rather moderate densities because of the…

Nuclear Theory · Physics 2009-10-31 C. Kuhrts , M. Beyer , G. Roepke

The hypothesis of the multi peripheral model is extended to the hadron-nucleus interactions and then generalized to the nucleus-nucleus case. The processing of the model depends on input parameters that are extracted from the features of…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. T. Hussein , N. M. Hassan , N. Elharby

The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs), sources of high-frequency gravitational waves and…

The statistical model for the calculation of the compound nucleus formation cross section and the probability of compound nucleus formation in heavy-ion collisions is discussed in detail. The light, heavy, and super-heavy nucleus-nucleus…

Nuclear Theory · Physics 2023-09-27 V. Yu. Denisov

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 photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the QCD color dipole picture, with particular emphasis on the saturation model. The integrated cross section and the rapidity…

High Energy Physics - Phenomenology · Physics 2011-09-13 V. P. Goncalves , M. V. T. Machado

The energy-dependent hotspot model is used to predict cross sections for vector-meson diffractive photo-nuclear production off oxygen ($\gamma$O) and neon ($\gamma$Ne) that can be extracted from ultra-peripheral O--O and Ne--Ne collisions,…

High Energy Physics - Phenomenology · Physics 2026-04-15 J. Cepila , J. G. Contreras , M. Matas , A. Ridzikova

We study theoretically fusion of the light proton-rich exotic nuclei $^{17}$F and $^8$B at near-barrier energies in order to investigate the possible role of breakup processes on their fusion cross sections. To this end, coupled channel…

Nuclear Theory · Physics 2009-11-07 P. Banerjee , K. Krishan , S. Bhattacharya , C. Bhattacharya

By evaluating all the contributions of the intermediate states of the multiple scattering theory diagrams, we compute the integrated stripping cross sections of collisions among light nuclei. The resulting expressions have the simple form…

High Energy Physics - Phenomenology · Physics 2009-10-31 Yu. M. Shabelski , D. Treleani