Physics of Particles and Nuclei Letters 
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This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.Electron Parton Distribution Function
AbstractA method for solving the evolution equation for electron parton distribution functions is discussed. Contributions of electron, positron and photon parton types are taken into account within perturbative QED. The iterative solution for the parton distribution of electrons inside an electron is shown. The results for the third iteration are given in the next-to-leading logarithmic approximation. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - June 1, 2023 Category: Physics Source Type: research
On the Thermal Properties of the One-Dimensional Space Fractional Duffin –Kemmer–Petiau Oscillator
AbstractIn this paper, we investigate the fractional version of the Duffin –Kemmer–Petiau oscillator (DKP) in one dimension. By using a semi-classical approximation, the eigenvalues of the oscillator in question have been determined. The results obtained show a remarkable influence of the fraction parameter on the energy spectrum of scalar and vector particles. With th e help of the form of the spectrum of energy, we will have direct access to the numerical calculation of the thermodynamic quantities of our system concerned. These quantities were obtained on the basis of the Euler–Maclaurin formula. Additionally, on ...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Study of the Influence of Longitudinal Impedance on the Duration of an Electron Bunch in a VEPP-4M Collider
Abstract—In this paper, the influence of the effects of potential well distortion and longitudinal microwave instability on the longitudinal size of the electron beam in the VEPP-4M collider is considered. As a result, the value of the longitudinal broadband impedance was obtained, which can be used to ca lculate the longitudinal size of the beam in any collider mode. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Intelligent System for Remote Control of Liquid Nitrogen Pressure and Flow in the Cryogenic System of Superconducting Magnets: Hardware and Software Platform
AbstractThe article describes the software-algorithmic platform for intelligent control (using the example of quantum self-organizing controllers in the control circuit) for the hardware of the current layout of remote control of the cooling process of a superconducting magnet with guaranteed achievement of a stable superconductivity zone. At the same time, optimal control quality parameters are provided, such as temperature, nitrogen consumption, speed, required pressure level and minimal complexity of control implementation. The current layout of a remote control system with built-in self-organizing quantum controllers i...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Direct Reactions in Heavy-Ion Collisions
AbstractIt is shown that all the features of fast alpha particles with energies close to the two-body kinematic limit emerging in heavy-ion collisions are well explained by the direct theory of stripping and knock-on reactions. Recently found particles with energies exceeding this limit are interpreted as a result of the newly discovered reaction process, namely, the direct quasi-fission reaction. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Polarization of Vavilov –Cherenkov Radiation in Violation of Axial Symmetry of the Process
Abstract—An analytical approach based on the polarization currents method is used to calculate the effect of the detector angular aperture on the vacuum Vavilov–Cherenkov radiation (VChR) polarization for an inclined dielectric plate. The simulation results show that an increase in the azimuthal detecto r aperture increases the VChR detection efficiency without average polarization degradation. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Critical Point for Transition of an Electron Avalanche to a Streamer
AbstractUsing the experimental data on the dependence of the coefficient of ionization by electron impact\({\alpha \mathord{\left/ {\vphantom {\alpha N}} \right. \kern-0em} N}\) as a function ofE/N in the gas CF4, the values of the strongly inhomogeneous electric field at the points located along the force lines are compared with those of the fields of the electron avalanches developing in them. It has been shown that the distributions of the increasing electric field of the avalanche always have the only point of intersection with the constant-field distribution. This is evidence that in the avalanche, a dipole has appear...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Effect of the Acceleration of the Rindler Spacetime on the Statistical Properties of the Klein –Gordon Oscillator in One Dimension
AbstractIn this paper, we study the relativistic spin-zero bosons influenced by the Klein –Gordon oscillator in Rindler space-time. The obtained form of the energy level of the oscillator is used to find the thermodynamic properties through the partition function. This partition function is terminated by using the method based on the zeta function via the Cahin–Mellin transformation. Through this function, all thermodynamics properties, such as the free energy, the total energy, the entropy, and the specific heat, have been determined and the influence of the acceleration of our spacetime has been treated. (Source: Phy...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Beam Profile Measurement of Electron Gun Prototype for NICA Collider Electron Cooling System
AbstractA new electron gun was developed for the high-voltage electron cooling system of the NICA collider. This paper presents the results of the current density distribution variability tests of the new gun prototype. The tests were done with a wire profile monitor. Various methods of deriving current density distribution from the wire profile monitor measurements were implemented and tested. The comparison with theoretical prediction for profile variability revealed that our calculations accurately predict the shape of a beam with peak density at the center, but they underestimate the concavity of the profile of an elec...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Laser Power Stabilization in a Precision Laser Inclinometer
AbstractStabilization of the laser power in the low-frequency range up to 10–5 Hz is experimentally significant. The power stability of the semiconductor laser source with fiber-optic output is improved by more than a factor of 10. The analysis of the necessary stability of the laser power for its use in a Precision Laser Inclinometer to register slopes of the Earth ’s surface in the low-frequency range is carried out. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
EW One-Loop Corrections to the Longitudinally Polarized Drell –Yan Scattering. (I) The Neutral Current Case
Abstract—Complete one-loop electroweak corrections to neutral current Drell–Yan process\(pp \to {{\ell }^{ + }}{{\ell }^{ - }}X\) are presented for the case of longitudinal polarization of initial particles. The single- and double-spin asymmetries under study allow us to extract information about polarized parton distribution functions. Numerical impact of electroweak next-order corrections to asymmetries as function of the vector boson rapidity and lepton pseudorapidities in the hadron-hadron centre-of-mass frame using the MC generator ReneSANCe is thoroughly studied. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Minimizing the Radiation Hazard in Biological Tissues Using the Mixture (Silver –Gold) Nanoparticles
AbstractThis research study focused on the production and application of mixture (silver –gold) nanoparticles, which can be utilized in radiation protection and environmental cleaning applications. Because the production of free radicals causes tissue cancer and has harmful effects on biological tissues, it is important to protect against and reduce the risk of gamma radiation. In vit ro results indicate the ability of the mixture (silver–gold) nanoparticles as an anti-oxidant agent in water samples. The investigation with an in vivo study demonstrates that a mixture of (silver–gold) nanoparticles is effective in pro...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
On Trajectories of Dynamic Systems Lying on Hypersurfaces of Linear Systems
Abstract—Lagutinskii’s theory of integration of dynamic systems is reformulated for arbitrary linear systems of hypersurfaces. The following problems are considered. Some dynamic system and some linear system of algebraic hypersurfaces are given. It is necessary to determine whether any integral curve l ies on one of the hypersurfaces of the linear system. In the affirmative case, it is necessary (1) to formulate an equation for this hypersurface and (2) prove the existence of the integral of motion and write an explicit expression for it. An example is constructed showing that the hypersurfaces of the initial linear s...
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Adaptation of the Sonix+ Software Package for DAQ DeLiDAQ-2 Controllers and N6730 Digitizer from CAEN
This study adapts the software for using the controllers and their data histogramming algorithms, and discusses tests conducted at the GRAINS reflectometer (tenth beam of IBR-2) in October 2021. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
Resonator with a Сorrugated Boundary: Numerical Results
Abstract—We consider a two-dimensional quantum system consisting of a resonator with the Neumann condition, to whichN small similar resonators are attached along the boundary through small holes. The main purpose is to study the limiting case for\(N \to \infty \). It is shown that in this limit the problem is reduced to a boundary value problem with an energy-dependent boundary condition of the Robin type. Asymptotic methods are used, as well as approximations of the eigenstates of the system obtained using the pinhole model. The results are compared with numerically obtained values. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - April 1, 2023 Category: Physics Source Type: research
