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.Comparative Analysis of Pulse Sequence Scenarios of Nuclear Magnetic Resonance Imaging of Human Brain
AbstractImpact of the variation of the parameters of the RF pulse sequence scenario of an MR tomograph is studied using a 3D model of the human brain. The model developed is based on mathematical processing of the output experimental data of nuclear magnetic resonance imaging. An algorithm for comparative analysis of 3D models obtained for the same tested person using different modes of the MR tomograph operation has been developed. The software implementation of the algorithm has been implemented as a service of the “Neuroimaging” system of the “Digital Laboratory” of the National Research Center “Kurchatov Inst...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
On 10-Dimensional Exceptional Drinfel ’d Algebras
AbstractWe discuss the mathematical formalism of 10 dimensional Exceptional Drinfel ’d Algebra, provide a brief explanation of developments in dualities in string theory and present our results in classification of 4 dimensional Exceptional Drinfel’d Algebras, which are the underlying Algebraic structures for the U‑dualities. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Quantum Interference Effects on Charge Transport in Molecular Electronic Junctions
AbstractThe technological application of nanoscale functional elements made of individual molecules is a promising approach towards the miniaturization of electronic devices. In particular, there is a potential for exploiting quantum interference effects in controlling the charge transport in these molecular-scale devices. The work is aimed at developing a particular example of a single-molecule transistor and explaining how the intrinsic chemical structure of a molecular complex used, the features of its electronic properties, and the geometry of its connection with metal electrodes may affect the efficiency of electronic...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
The Deuteron Charge Radius RC in the Framework of the Hard-Wall AdS/QCD Model
We present basic elements of the hard-wall model, write metric for the AdS space. We introduce a vector field with twist\(\tau = 6\) describing deuteron in the bulk of AdS space and other vector field to describe photon respectively, write an effective action for the bulk fields interactions, find a\({{G}_{1}}({{Q}^{2}})\),\({{G}_{2}}({{Q}^{2}})\) and\({{G}_{3}}({{Q}^{2}})\) form factors, then quadrupole\({{G}_{{\text{Q}}}}({{Q}^{2}})\) and charge\({{G}_{{\text{C}}}}({{Q}^{2}})\) form-factors of a deuteron. Thus, from the charge\({{G}_{{\text{C}}}}({{Q}^{2}})\) form-factor we find the deuteron charge radius\({{R}_{{\text{C...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Light-Like Paths of Weakly Relativistic Anyon in Magnetic Field
AbstractWe consider the light-like trajectories of massive weakly relativistic anyon travelling in a uniform stationary magnetic field. We show that the world paths of classical particle are helical lines with the light-like tangent vector. The configuration of magnetic field determines the equations of motion for the symmetry axis of helix, while the step of the helix is determined by spin. The deviation of the particle path from smooth propagation is explained by the zitterbewegung phenomenon. We explicitly find the cyclotron frequency, and it is shown to be spin-dependent, even though spin has no physical degrees of fre...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Application of Adaptive and Non-Adaptive Integration Methods to the Two-Photon Decay of a Neutral Pion at Finite Temperature
AbstractComputation of the\({{\pi }^{0}} \to \gamma \gamma \) decay width at high temperatures in the framework of the Nambu –Jona–Lasinio model requires the calculation of an integral with singularity\({1 \mathord{\left/ {\vphantom {1 {(x - c)}}} \right. \kern-0em} {(x - c)}}\). To solve the problem, the most suitable method must be found that can effectively bypass the singularity and allow obtaining an answer with minimal error and a high computation speed. In this work were considered non-adaptive and adaptive methods based on the Gauss –Kronrod quadrature formula and the Monte Carlo integration method. As a resu...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Muon Production in Elastic Proton-Proton Scattering
AbstractElastic part of the\(pp \to pp(\gamma \gamma ) \to pp{{\mu }^{ + }}{{\mu }^{ - }}\) scattering cross section is calculated. Analytical formulas are obtained in the spiral amplitude approximation. Differential cross section with the experimental cuts is integrated numerically. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Spin Nature of the Energy Gap in Superconductors of the Second Kind
AbstractThis paper presents a model for determining the second critical field of superconductors, obtained on the basis of changes in the spin basis states of a system of two particles with spin 1/2 in a magnetic field. The obtained critical field estimate is consistent with experimental data for superconducting alloys, some metallic compounds, nitrides and Laves phases, fullerides and other superconducting compounds. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Quantum Decoherence of Neutrino Mass States
AbstractWe study the interplay of the neutrino quantum decoherence and bipolar collective neutrino oscillations. Using the numerical simulation of the neutrino evolution in a supernova environment we show the suppression of the bipolar collective neutrino oscillations by the quantum decoherence of the neutrino mass states. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Cathode Assembly Electronics Development for Electron String Ion Sources (ESIS)
In this report we describe Electron String Ion Sources (ESIS) development short history and its main working principles as a basic start point. The designed new cathode assembly electronics development and production as well as its operational principles are described and discussed in some details. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
REST API and Web Interface for the Event Metadata System of the BM@N Experiment
AbstractThe Event Metadata System (EMS) developed for BM@N, a fixed target experiment of the NICA (Nuclotron-based Ion Collider fAcility) project has been designed to store and index event records for particle collisions obtained at the BM@N facility and subsequently reconstructed. The system enables to quickly search for a required set of physics events based on various given criteria for further physics analyses. The main implemented interfaces to the EMS include Web UI (user interface) and REST API (application programming interface), that are presented in the paper in detail. The both interfaces have its own main use p...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Parton Distribution Function of Positron in Electron in QED
AbstractIterative solution of the evolution equation of parton distribution functions in QED is discussed. The results for the functions of positron-in-electron type are given in the next-to-leading logarithmic approximation. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
New Region of Nonlinearity in the IV-Curve of SFS φ0 JJ under Radiation
AbstractWe investigate theIV characteristics and magnetization dynamics of the\({{\varphi }_{0}}\) Josephson junction under an external electromagnetic radiation. A new region of nonlinearety related to the beating near the ferromagnetic resonance are found. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
String Fusion Mechanism and Studies of Correlations
AbstractThe paper presents results on multiplicity correlations in two rapidity intervals and mean transverse momentum vs event multiplicity correlation function calculated in the developed Monte-Carlo model of multi-particle production run forp +p interactions at\(\sqrt {{{s}_{{NN}}}} = 900\) and\(7000\) GeV. The model is based on interacting colour strings approach with longitudinal and transverse strings dynamics. Results are compared with the ALICE data and PYTHIA 8.3 simulations. (Source: Physics of Particles and Nuclei Letters)
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
Data Acquisition System of the NA64 Experiment
AbstractNA64 is a fixed-target experiment located at the H4 beam line of the Super Proton Synchrotron (SPS) at CERN. The experiment facility includes many different types of detectors. The Data Acquisition System is responsible for collecting the event data, for forming and propagating the trigger decision, and for time synchronization across different sub-systems. The DAQ hardware architecture is based on custom front-end electronics, data concentrators, buffering readout cards, server PCs and network equipment. All DAQ equipment is configured, managed and monitored by the RCCARS software package, which is also responsibl...
Source: Physics of Particles and Nuclei Letters - December 1, 2023 Category: Physics Source Type: research
