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We investigate the effects of acceleration during non-linear electron-beam relaxation in magnetized plasma in the case of electron transport in solar flares. The evolution of electron distribution functions is computed using a…

太阳与恒星天体物理 · 物理学 2015-06-05 M. Karlicky , E. P. Kontar

We establish a connection between the quark model results and the $1/N_c$ expansion mass formula used in the description of baryon resonances. We show that a remarkable compatibility exists between the two methods.

高能物理 - 唯象学 · 物理学 2008-11-26 C. Semay , F. Buisseret , N. Matagne , Fl. Stancu

If the threshold for $e^{-}e^{+}$ pair production depends on an angle between photon momenta, and if the $\gamma$-rays are collimated right in gamma-ray burst (GRB) source then another solution of the compactness problem is possible. The…

天体物理学 · 物理学 2008-05-22 V. V. Sokolov

Expressions of polarization and magnetization in magnetically confined plasmas are derived, which include full expansions in the gyroradius to treat effects of both equilibrium and microscopic electromagnetic turbulence. Using the obtained…

等离子体物理 · 物理学 2022-06-01 H. Sugama , S. Matsuoka , M. Nunami

It is argued that the short time scale phenomena can be studied within the framework of hydrodynamics in the quark-gluon plasma. There are two different versions of the hydrodynamic-like equations in the literature. In this work we discuss…

高能物理 - 唯象学 · 物理学 2011-05-12 Abhishek Basak , Jitesh R. Bhatt , Predhiman K. Kaw

Recently much attention has being attracted to the problem of limitations on the attainable intensity of high power lasers [A.M. Fedotov {\it et al.} Phys. Rev. Lett. \textbf{105}, 080402 (2010)]. The laser energy can be absorbed by…

等离子体物理 · 物理学 2011-03-23 E. N. Nerush , I. Yu. Kostyukov , A. M. Fedotov , N. B. Narozhny , N. V. Elkina , H. Ruhl

The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

高能天体物理现象 · 物理学 2015-06-11 Andrei M. Beloborodov

It is demonstrated that the ionization events in the vicinity of a small floating grain can increase the ion flux to its surface. In this respect the effect of electron impact ionization is fully analogous to that of the ion-neutral…

等离子体物理 · 物理学 2012-03-13 Sergey A. Khrapak , Gregor E. Morfill

Recent development of a hydrodynamic model is discussed by putting an emphasis on realistic treatment of the early and late stages in relativistic heavy ion collisions. The model, which incorporates a hydrodynamic description of the…

核理论 · 物理学 2008-11-26 Tetsufumi Hirano

One important question in relativistic heavy ion collisions is if hadrons, specifically anti-hyperons, are in equilibrium before thermal freezeout because strangeness enhancement has long been pointed to as a signature for Quark Gluon…

核理论 · 物理学 2007-05-23 J. Noronha-Hostler , C. Greiner , I. A. Shovkovy

The density of states and energy spectrum of the gluon radiation are calculated for the color current of an expanding hydrodynamic skyrmion in the quark gluon plasma with a semiclassical method. Results are compared with those in…

高能物理 - 唯象学 · 物理学 2007-05-23 Jian Dai

The application of quark models to the spectra and strong and electromagnetic couplings of baryons is reviewed. This review focuses on calculations which attempt a global description of the masses and decay properties of baryons, although…

核理论 · 物理学 2008-11-26 Simon Capstick , W. Roberts

Symmetric electron-positron plasmas in inhomogeneous magnetic fields are intrinsically subject to interchange instability and transport. Scaling relations for the propagation velocity of density blob perturbations relevant to transport in…

等离子体物理 · 物理学 2017-06-14 Alexander Kendl , Gregor Danler , Matthias Wiesenberger , Markus Held

We study the resonant interaction of charged particles with a gravitational wave propagating in the non-empty interstellar space in the presence of a uniform magnetic field. It is found that this interaction can be cast in the form of a…

广义相对论与量子宇宙学 · 物理学 2009-10-31 K. Kleidis , H. Varvoglis , D. B. Papadopoulos

A previously proposed geometric definition of mass in terms of energy, in a geometrical unified theory, is used to obtain a numerical expression for a ratio of masses of geometrical excitations. The resultant geometric ratio is…

综合物理 · 物理学 2007-05-23 Gustavo R. Gonzalez-Martin

The unexpected energy spectrum of the positron/electron ratio is interpreted astrophysically, with a possible exception of the 100-300 GeV range. The data indicate that this ratio, after a decline between $0.5-8$ GeV, rises steadily with a…

高能天体物理现象 · 物理学 2016-10-11 M. A. Malkov , P. H. Diamond , R. Z. Sagdeev

The different types of orbits in the classical problem of two particles with equal masses and opposite charges on a plane under the influence of a constant orthogonal magnetic field are classified. The equations of the system are reduced to…

数学物理 · 物理学 2020-02-03 M. A. Gonzalez Leon , J. Mateos Guilarte , M. de la Torre Mayado

A theoretical study of laser and plasma based electron acceleration is presented. An effective model has been used, in which the presence of an underdense plasma has been taken account via its index of refraction $n_{m}$. In the confines of…

等离子体物理 · 物理学 2015-10-14 Mihály András Pocsai , Imre Ferenc Barna , Sándor Varró

Relativistic dissipative hydrodynamic equations are extended by taking into account particle number changing processes in a gluon system, which expands in one dimension boost-invariantly. Chemical equilibration is treated by a rate equation…

核理论 · 物理学 2010-11-23 Andrej El , Azwinndini Muronga , Zhe Xu , Carsten Greiner

The equilibration of electronic carriers in metals after excitation by an ultra-short laser pulse provides an important class of non-equilibrium phenomena in metals and allows measuring the effective electron-phonon coupling parameter.…