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Spectral functions of the pseudoscalar $D$ meson in the nuclear medium are analyzed using QCD sum rules and the maximum entropy method. This approach enables us to extract the spectral functions without any phenomenological assumption, and…

高能物理 - 唯象学 · 物理学 2016-04-28 Kei Suzuki , Philipp Gubler , Makoto Oka

Finite nuclear size (FNS) effects on the magnetic-dipole hyperfine splitting in muonic hydrogenlike ions are investigated within a fully relativistic Dirac framework. The FNS contribution is quantified through the correction factor…

原子物理 · 物理学 2026-05-12 Doğa Yaşar , Bastian Sikora

In the present work we apply a quantum hadrodynamic effective model in the mean-field approximation to the description of neutron stars. We consider an adjustable derivative-coupling model and study the parameter influence on the dynamics…

天体物理学 · 物理学 2009-02-17 V. A. Dexheimer , C. A. Z. Vasconcellos , B. E. J. Bodmann

We compute the nucleosynthesis bounds on the masses of stable Dirac and Majorana neutrinos by solving an evolution equation network comprising of all neutrino species which in the Dirac case includes different helicity states as separate…

高能物理 - 唯象学 · 物理学 2008-11-26 Brian D. Fields , Kimmo Kainulainen , Keith A. Olive

The detection of gravitational waves from the merger of binary neutron stars events (GW170817, GW190425) and subsequent estimations of tidal deformability play a key role in constraining the behaviour of dense matter. In addition, massive…

高能天体物理现象 · 物理学 2024-04-11 Vivek Baruah Thapa , Anil Kumar , Monika Sinha

Modifications of baryon properties due to the restoration of the chiral symmetry in an external hot and dense baryon medium are investigated in an effective chiral quark-meson theory. The nucleon arises as a soliton of the Gell-Mann -…

高能物理 - 唯象学 · 物理学 2009-10-22 Chr. V. Christov , E. Ruiz Arriola , K. Goeke

We calculate a new equation of state for baryons at sub-nuclear densities meant for the use in core-collapse simulations of massive stars. The abundance of various nuclei is obtained together with the thermodynamic quantities. The…

高能天体物理现象 · 物理学 2015-05-27 Shun Furusawa , Shoichi Yamada , Kohsuke Sumiyoshi , Hideyuki Suzuki

The full relaxed-density potential between spherical nuclei is considered as a sum of the macroscopic and shell-correction contributions. The macroscopic part of the potential is related to a nucleus-nucleus potential obtained in the…

核理论 · 物理学 2015-06-23 V. Yu. Denisov

We have attempted to mitigate the challenge of connecting the neutron star (NS) properties with the nuclear matter parameters that describe equations of state (EoSs). The efforts to correlate various neutron star properties with individual…

核理论 · 物理学 2023-12-13 N. K. Patra , Prafulla Saxena , B. K. Agrawal , T. K. Jha

We study the mass dependence of various quantities (like the average and maximum density, collision rate, participant-spectator matter, temperature as well as time zones for higher density) by simulating the reactions at the energy of…

核理论 · 物理学 2011-02-11 Aman D. Sood , Rajeev K. Puri

A phenomenological level density model that has different level density parameter sets for the state densities of the deformed and the spherical states, and the optimization of the parameters using experimental data of the average s-wave…

核理论 · 物理学 2018-11-28 Naota Furutachi , Futoshi Minato , Osamu Iwamoto

Diffusive molecular dynamics is a novel model for materials with atomistic resolution that can reach diffusive time scales. The main ideas of diffusive molecular dynamics are to first minimize an approximate variational Gaussian free energy…

数值分析 · 数学 2015-06-09 Gideon Simpson , Mitchell Luskin , David J. Srolovitz

We derive diffusive macroscopic equations for the particle and energy density of a system whose time evolution is described by a kinetic equation for the one particle position and velocity function f(r,v,t) that consists of a part that…

统计力学 · 物理学 2018-11-14 Pedro L. Garrido , Joel L. Lebowitz

Microtubules are a major component of the cytoskeleton distinguished by highly dynamic behavior both in vitro and in vivo. We propose a general mathematical model that accounts for the growth, catastrophe, rescue and nucleation processes in…

生物物理 · 物理学 2015-05-13 Peter Hinow , Vahid Rezania , Jack A. Tuszynski

The possibility of new short-distance physics applicable inside the cores of NS is incorporated into the equation of state generated by the quark-meson coupling model. The contribution of this new physics to the energy density is taken to…

核理论 · 物理学 2022-08-22 Jesper Leong , Theo F. Motta , Anthony W. Thomas , P. A. M. Guichon

Neutrino mass sum rules relate the three neutrino masses within generic classes of flavour models, leading to restrictions on the effective mass parameter measured in experiments on neutrinoless double beta decay as a function of the…

高能物理 - 唯象学 · 物理学 2015-06-16 Stephen F. King , Alexander Merle , Alexander J. Stuart

Mitochondrial and nuclear genomes must be co-adapted to ensure proper cellular respiration and energy production. Mito-nuclear incompatibility reduces individual fitness and induces hybrid infertility, suggesting a possible role in…

种群与进化 · 定量生物学 2022-10-12 Débora Princepe , Marcus A. M. de Aguiar , Joshua B. Plotkin

By using the AdS/CFT correspondence, we investigate various form factors between nucleons and mesons in a nuclear medium. In order to describe a nuclear medium holographically, we take into account the thermal charged AdS geometry with an…

高能物理 - 理论 · 物理学 2018-02-14 Chanyong Park , Jung Hun Lee

In the present paper the macroscopic limits of the kinetic model for inter-acting entities (individuals, organisms, cells) are studied. The kinetic model is one-dimensional and entities are characterized by their position and orientation…

偏微分方程分析 · 数学 2012-07-12 Jacek Banasiak , Miroslaw Lachowicz

We derive a mesoscopic modeling and simulation technique that is very close to the technique known as dissipative particle dynamics. The model is derived from molecular dynamics by means of a systematic coarse-graining procedure. Thus the…

软凝聚态物质 · 物理学 2009-10-31 Eirik G. Flekkoy , Peter V. Coveney , Gianni De Fabritiis