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A quantum plasma screening model based on the density matrix formalism is used to investigate theoretically the thermonuclear reactions $^{13}$C($\alpha$, $n$)$^{16}$O and $^2$H($d$, $n$)$^3$He in laser-generated plasmas over a large range…

等离子体物理 · 物理学 2022-04-21 David Elsing , Adriana Pálffy , Yuanbin Wu

The electron capture process plays an important role in the evolution of the core collapse of a massive star that precedes the supernova explosion. In this study, the electron capture on nuclei in stellar environment is described in the…

核理论 · 物理学 2021-01-04 A. Ravlic , E. Yuksel , Y. F. Niu , G. Colo , E. Khan , N. Paar

Binary neutron-star mergers and heavy-ion collisions are related through the properties of the hot and dense nuclear matter formed during these extreme events. In particular, low-energy heavy-ion collisions offer exciting prospects to…

Inertial confinement fusion hotspots and cluster Coulomb explosion plasmas may develop a positive net electric charge. The Coulomb barrier penetrability and the rate of nuclear fusion reactions at ultra-low energies ($\lesssim 10$ keV) are…

核理论 · 物理学 2019-06-18 Salvatore Simone Perrotta , Aldo Bonasera

Molecular dynamics simulations are used to model ion and neutral temperature evolution in partially-ionized atmospheric pressure plasma at different ionization fractions. Results show that ion-ion interactions are strongly coupled at…

等离子体物理 · 物理学 2023-01-04 M. D. Acciarri , C. Moore , S. D. Baalrud

A quantitative description of the properties of hot nuclear matter will be needed for the interpretation of the available and forthcoming astrophysical data, providing information on the post merger phase of a neutron star coalescence. We…

核理论 · 物理学 2022-11-30 Lucas Tonetto , Omar Benhar

We discuss quantum effects in the diffusion process which is used to describe the shape evolution from the touching configuration of fusing two nuclei to a compound nucleus. Applying the theory with quantum effects to the case where the…

核理论 · 物理学 2009-11-11 Kouhei Washiyama , Bulent Yilmaz , Sakir Ayik , Noboru Takigawa

In conventional nuclear experiments a beam of accelerated nuclei collides with a target nucleus that is surrounded by other nuclei in a molecule, in condensed matter, or in a plasma environment. It is shown that for low collision energies…

核理论 · 物理学 2007-05-23 M. Yu. Kuchiev , B. L. Altshuler , V. V. Flambaum

Due to screening effects, nuclear reactions in astrophysical plasmas may behave differently than in the laboratory. The possibility to determine the magnitude of these screening effects in colliding laser-generated plasmas is investigated…

等离子体物理 · 物理学 2017-03-29 Yuanbin Wu , Adriana Pálffy

We study the impact of plasma correlation effects on nonresonant thermonuclear reactions for various stellar objects, namely in the liquid envelopes of neutron stars, and the interiors of white dwarfs, low-mass stars, and substellar…

等离子体物理 · 物理学 2013-10-14 A. Y. Potekhin , G. Chabrier

Thermal effects for inelastic neutrino-nucleus scattering off even-even nuclei in the iron region are studied. Allowed and first-forbidden contributions to the cross sections are calculated within the quasiparticle random phase…

核理论 · 物理学 2015-05-20 Alan A. Dzhioev , A. I. Vdovin , V. Yu. Ponomarev , J. Wambach

The fusion probability for the production of superheavy nuclei in cold fusion reactions was investigated and compared with recent experimental results for $^{48}$Ca, $^{50}$Ti, and $^{54}$Cr incident on a $^{208}$Pb target. Calculations…

核理论 · 物理学 2022-05-25 T. Cap , M. Kowal , K. Siwek-Wilczyńska

The knowledge of the nuclear symmetry energy of hot neutron-rich matter is important for understanding the dynamical evolution of massive stars and the supernova explosion mechanisms. In particular, the electron capture rate on nuclei…

核理论 · 物理学 2008-11-26 Ch. C. Moustakidis

Deuteron-triton (DT) fusion is the primary fusion reaction used in controlled fusion research, mainly for its relatively high reaction cross sections compared to other fusion options. Even so, to attain appreciable reaction probabilities…

原子物理 · 物理学 2020-07-22 Xu Wang

We present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. We examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and…

高能物理 - 唯象学 · 物理学 2021-09-17 Ankit Kumar , H. C. Das , M. Bhuyan , S. K. Patra

Matter in neutron star collisions can reach densities up to few times the nuclear saturation threshold and temperatures up to one hundred MeV. Understanding the structure and composition of such matter requires many-body nonperturbative…

广义相对论与量子宇宙学 · 物理学 2019-09-04 Albino Perego , Sebastiano Bernuzzi , David Radice

Different methods to extract the temperature and density in heavy ion collisions are compared using a statistical model tailored to reproduce many experimental features at low excitation energy. The model assumes a sequential decay of an…

核理论 · 物理学 2014-11-04 H. Zheng , G. Bonasera , J. Mabiala , P. Marini , A. Bonasera

Heavy ion collisions have been widely used in the last decade to constraint the parameterizations of the symmetry energy term of nuclear equation of state (EOS) for asymmetric nuclear matter as a function of baryonic density. In the Fermi…

核实验 · 物理学 2015-06-17 E. De Filippo , A. Pagano

We argue that the Maxwellian approximation can essentially underestimate the rates of some nuclear reactions in hot plasma under conditions very close to thermal equilibrium. This phenomenon is demonstrated explicitly on the example of…

等离子体物理 · 物理学 2009-11-13 Makoto Nakamura , Victor T. Voronchev , Yasuyuki Nakao

We study the plasma correlation effects on nonresonant thermonuclear reactions of carbon and oxygen in the interiors of white dwarfs and liquid envelopes of neutron stars. We examine the effects of electron screening on thermodynamic…

太阳与恒星天体物理 · 物理学 2012-10-17 A. Y. Potekhin , G. Chabrier
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