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In the present work considering the contributions of the daughter nuclear charge and the orbital angular momentum taken away by the emitted proton, we propose a two-parameter formula of new Geiger-Nuttall law for proton radioactivity. A set…

Nuclear Theory · Physics 2020-01-08 Jiu-Long Chen , Jun-Yao Xu , Jun-Gang Deng , Xiao-Hua Li , Biao He , Peng-Cheng Chu

The action of parity inversion, time inversion and charge conjugation operations on several differential equations for a classical point charged particle are described. Moreover, we consider the notion of {\it symmetrized acceleration}…

General Physics · Physics 2014-11-06 Ricardo Gallego Torromé

Radiation hydrodynamics simulations were used to study the effect of plastic ablators in laser-driven shock experiments. The sensitivity to composition and equation of state was found to be 5-10% in ablation pressure. As was found for…

Other Condensed Matter · Physics 2009-11-13 Damian C. Swift , Richard G. Kraus

In this paper, we investigate the motion of a set of charged particles acted upon by a growing electrostatic wave, in the limit when the initial wave amplitude is vanishingly small and when all the particles have the same initial action,…

Plasma Physics · Physics 2015-06-11 Didier Benisti , Laurent Gremillet

The computational cost required to calculate nuclear correlation functions grows factorially in the number of quarks, making the study of large nuclei inaccessible to ab initio study using lattice QCD at the present time. However, the…

High Energy Physics - Lattice · Physics 2022-01-13 Nabil Humphrey , William Detmold , Ross D. Young , James M. Zanotti

A sampling procedure to compute exactly the rate of activated processes arising in systems at equilibrium or nonequilibrium steady state is presented. The procedure is a generalization of the method in [A. Warmflash, P. Bhimalapuram, and A.…

Computational Physics · Physics 2009-04-27 Eric Vanden-Eijnden , Maddalena Venturoli

The dynamics of atomic levels resonantly coupled by a coherent and intense short high-frequency laser pulse is discussed and it is advocated that this dynamics is sensitively probed by measuring the spectra of the particles emitted. It is…

Atomic and Molecular Clusters · Physics 2013-01-11 Philipp V. Demekhin , Lorenz S. Cederbaum

Emergent properties such as nuclear saturation and deformation, and the effects on shell structure due to the proximity of the scattering continuum and particle decay channels are fascinating phenomena in atomic nuclei. In recent years, ab…

Nuclear Theory · Physics 2016-05-19 G. Hagen , M. Hjorth-Jensen , G. R. Jansen , T. Papenbrock

Voltage fluctuations are common disturbances in power grids. Initially, it is necessary to selectively identify individual sources of voltage fluctuations to take actions to minimize the effects of voltage fluctuations. Selective…

Signal Processing · Electrical Eng. & Systems 2023-06-16 Piotr Kuwałek

Nuclear radial distance is a prerequisite for generating any alpha-decay half-life formula by taking a suitable effective potential. We study the emission process of alpha particles from an isolated quasi-bound state generated by an…

Nuclear Theory · Physics 2018-08-01 Swagatika Bhoi , Basudeb Sahu

We show that longwavelength excitations of the quark-gluon plasma are described by simple kinetic equations which represent the exact equations of motion at leading order in $g$. Properties of the so-called ``hard thermal loops'', i.e. the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Jean-Paul BLAIZOT , Edmond IANCU

We use particle-in-cell (PIC) simulations and simple analytic models to investigate the laser-plasma interaction known as ponderomotive steepening. When normally incident laser light reflects at the critical surface of a plasma, the…

We present measurements of the pulse length of ultracold electron bunches generated by near-threshold two-photon photoionization of a laser-cooled gas. The pulse length has been measured using a resonant $3$ GHz deflecting cavity in…

Atomic Physics · Physics 2017-03-24 J. G. H. Franssen , T. L. I. Frankort , E. J. D. Vredenbregt , O. J. Luiten

Time-resolved, pulsed excitation methods are widely used to deduce optoelectronic properties of semiconductors, including now also Halide Perovskites (HaPs), especially transport properties. Howev-er, as yet no evaluation of their…

A neutron source is proposed. It is based on a proton accelerator with the energy Ep = 1.2 GeV, current Ip = 0.7A, pulse duration T = 3 mcsec, repetition rate F = 60 Hz, and accelerator length L = 30 m. Protons are accelerated by the field…

Accelerator Physics · Physics 2009-08-05 S. N. Dolya , K. A. Reshetnikova

The quantum dynamical activity constitutes a thermodynamic cost in trade-off relations such as the quantum speed limit and the quantum thermodynamic uncertainty relation. However, calculating the quantum dynamical activity has been a…

Quantum Physics · Physics 2024-04-08 Tomohiro Nishiyama , Yoshihiko Hasegawa

Effect of deformation on half-life of two-proton (2p) radioactivity is investigated across the periodic chart for nuclei with Z$<$82. 2p-decay half-lives are estimated by employing our newly proposed semi-empirical formula wherein the…

Nuclear Theory · Physics 2022-12-07 G. Saxena , Mamta Aggarwal , D. Singh , A. Jain , P. K. Sharma , H. L. Yadav

Up to now, the methods available for measuring the rate constants of reactions taking place on heterogeneous catalysts require that the catalyst be stable over long measurement times. But catalyst are often non-stationary, they may become…

We analytically study the impact of a short laser pulse onto an inhomogeneous cold diluted plasma at rest, in particular: the duration of the hydrodynamic regime; the formation and the features of plasma waves (PWs); their wave-breakings…

Plasma Physics · Physics 2023-08-11 Gaetano Fiore , Sergio De Nicola , Tahmina Akhter , Renato Fedele , Dušan Jovanović

The effect of particle creation by nonstationary external fields is considered as a radiation effect in the expectation-value spacetime. The energy of created massless particles is calculated as the vacuum contribution in the…

General Relativity and Quantum Cosmology · Physics 2008-11-26 A. G. Mirzabekian , G. A. Vilkovisky