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Motivated by precision computations of neutrino decoupling at MeV temperatures, we show how QED corrections to the thermal neutrino interaction rate can be related to the electron-positron spectral function as well as an effective…

高能物理 - 唯象学 · 物理学 2024-05-13 G. Jackson , M. Laine

An experimental investigation on laser plasma acceleration of electrons has been carried out using 3 TW, 45 fs duration titanium sapphire laser pulse interaction with nitrogen gas jet at intensity of 2x10^18 W/cm^2. We have observed stable…

等离子体物理 · 物理学 2018-06-25 B. S. Rao , A. Moorti , J. A. Chakera , P. A. Naik , P. D. Gupta

The deuteron binding energy is only 2.2 MeV. At the same time, its yield in Pb+Pb collisions at $\sqrt{s_{NN}} = $2.76 TeV corresponds to a thermal yield at the temperature around 155 MeV, which is too hot to keep deuterons bound. This…

高能物理 - 唯象学 · 物理学 2019-05-07 Dmytro Oliinychenko , Long-Gang Pang , Hannah Elfner , Volker Koch

In the recent Letter [1] we considered the approach of nonequilibrium pair plasma towards thermal equilibrium state adopting a kinetic treatment and solving numerically the relativistic Boltzmann equations. It was shown that plasma in the…

高能天体物理现象 · 物理学 2009-08-26 A. G. Aksenov , R. Ruffini , G. V. Vereshchagin

We derive equations of motion for the reduced density matrix of a heavy quarkonium in contact with a quark-gluon plasma in thermal equilibrium. These equations allow in particular a proper treatment of the regime when the temperature of the…

高能物理 - 唯象学 · 物理学 2018-10-17 Jean-Paul Blaizot , Miguel Angel Escobedo

An optically thin $p$-$^{11}$B plasma loses more energy to bremsstrahlung than it gains from fusion reactions, unless the ion temperature can be elevated above the electron temperature. In thermal plasmas, the temperature differences…

等离子体物理 · 物理学 2015-12-09 Michael J. Hay , Nathaniel J. Fisch

Multichannel quantum defect theory is applied in the treatment of the dissociative recombination and vibrational excitation processes for the BeD$^+$ ion in the twenty four vibrational levels of its ground electronic state…

A common occurrence in weakly collisional space plasmas is the unequal electron-ion temperatures. The pressure-strain interaction provides a mechanism-agnostic pathway for increasing plasma internal energy through spatiotemporally local…

等离子体物理 · 物理学 2025-12-18 M. Hasan Barbhuiya , Subash Adhikari

A recent proposal of accelerator based fusion reactor considers a scheme where an ion beam from the accelerator hits the target plasma on the resonance of the fusion reaction so that the reactivity ($\sigma v$) can be an order of magnitude…

等离子体物理 · 物理学 2025-02-21 Keh-Fei Liu

The relaxation rate of a Maxwellian velocity distribution function that has an initially anisotropic temperature $(T_\parallel \neq T_\perp)$ is an important physical process in space and laboratory plasmas. It is also a canonical example…

等离子体物理 · 物理学 2017-06-07 Scott D. Baalrud , Jerome Daligault

We investigate the thermalization and the chemical equilibration of a parton plasma created from Au+Au collision at LHC and RHIC energies starting from the early moment when the particle momentum distributions in the central region become…

高能物理 - 唯象学 · 物理学 2008-11-26 S. M. H. Wong

One considers the motion of a test particle in an homogeneous fluid in equilibrium at temperature $T$, undergoing dissipative collisions with the fluid particles. It is shown that the corresponding linear Boltzmann equation still posseses a…

统计力学 · 物理学 2007-05-23 Ph. A. Martin , J. Piasecki

The friction in plasmas consisting of two species with different temperatures is discussed together with the consequent energy transfer. It is shown that the friction between the two species has no effect on the ion acoustic mode in a…

等离子体物理 · 物理学 2009-11-13 J. Vranjes , M. Kono , S. Poedts , M. Y. Tanaka

We first show a possible mechanism to create a new type of nuclear fusion, thermal resonance fusion, i.e. low energy nuclear fusion with thermal resonance of light nuclei or atoms, such as deuterium or tritium. The fusion of two light…

核理论 · 物理学 2015-07-08 Bao-Guo Dong

We initiate the study of equilibration rates of strongly coupled quark-gluon plasmas in the absence of conformal symmetry. We primarily consider a supersymmetric mass deformation within ${\cal N}=2^{*}$ gauge theory and use holography to…

高能物理 - 理论 · 物理学 2015-06-24 Alex Buchel , Michal P. Heller , Robert C. Myers

A collisional magnetized plasma consisting of two temperature electrons has been investigated numerically to study the sheath structure and the ion energy flux to the wall. The low-temperature electrons are described by Maxwellian…

等离子体物理 · 物理学 2020-06-25 G. Sharma , S. Adhikari , R. Moulick , S. S. Kausik , B. K. Saikia

In fusion plasmas, where electron temperatures $T_e$ range from keV to hundreds of keV, Bremsstrahlung radiation constitutes a significant energy loss mechanism. While various thermal average fitting formulas exist in the literature, their…

等离子体物理 · 物理学 2024-10-28 Huasheng Xie

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

Generation of quasi-monoenergetic ions by intense laser is one of long-standing goals in laser-plasma physics. However, existing laser-driven ion acceleration schemes often produce broad energy spectra and limited control over ion species.…

In collisionless astrophysical plasmas, turbulence mediates the partitioning of free energy among cascade channels and its dissipation into ion and electron heat. The resulting ion heating is often anisotropic, with ions observed to be…

太阳与恒星天体物理 · 物理学 2025-12-04 Zade Johnston , Jonathan Squire