We consider the harmonic superspace formulation of higher-derivative 6D,N=(1,0) supersymmetric gauge theory and its minimal coupling to a hypermultiplet. In components, the kinetic term for the gauge field in such a theory involves four space-time derivatives. The theory is quantized in the framework of the superfield background method ensuring manifest 6D,N=(1,0) supersymmetry and the classical gauge

M-theory backgrounds in the form of unwarped compactifications with or without fluxes are considered. We construct the bilinear forms of supergravity Killing spinors for different choices of spinor inner products on these backgrounds. The equations satisfied by the bilinear forms and their decompositions into product manifolds are obtained for different inner product choices in the special case for

As the share of variable renewable energy in the electricity generation continues to increase, electricity markets are facing significant variations of electricity prices. Thermal power plants that generate base-load electricity are not the most suitable for such markets. In the work reported here, a cold thermal energy storage coupled to a Brayton power conversion cycle for peak capacity generation

The primary vessel of a sodium-cooled fast neutron reactor (SFR) must remain free of any contaminant released by a cladding failure in a fuel assembly. A comprehensive detection system of cladding failures has then to be considered right from the beginning of the reactor design. One sub-system, called delayed neutron detection (DND), aims to search for delayed neutron precursors (DNP) through an ex-vessel

We propose a renormalizable U(1)B−L extension of the Standard model with A4 symmetry that leads to the successful cobimaximal lepton mixing ansatz, thus providing a predictive explanation for leptonic mixing observables. The smallness of the active neutrino masses and neutrino masses ordering are produced by the type-I seesaw mechanism at the tree-level. The obtained physical parameters are well consistent

We study analytically the Branching Ratio (BR) and Charge-Parity (CP) asymmetries of the Bs0¯→ωϕ decay mode within QCDF approach. We find the BR(Bs0¯→ωϕ)=(0.51±0.12)×10−6. We also find the values of CP asymmetries are 𝒜CPdir(Bs0¯→ωϕ)=0.080±0.008, 𝒜CPmix(Bs0¯→ωϕ)=0.184±0.035 and 𝒜CPΔΓ(Bs0¯→ωϕ)=0.980±0.006. The reported results are consistent with the recent theoretical predictions and can be used

We review gauge invariant 𝒩=1 supersymmetric massive U(1) gauge theory coupled to matter and Stuckelberg superfields. We focus on the leading order self-energy and vertex correction to the matter field in the massless limit of both the U(1) vector superfield and the Stuckelberg superfield. We explicitly verify that the theory is infrared divergence free in the massless limit. Hence the Stuckelberg

We use perturbation theory to obtain neutrino oscillation probabilities, including the standard mass-mixing paradigm and non-standard neutrino interactions (NSI). The perturbation is made on the standard parameters ##IMG## [http://ej.iop.org/images/0954-3899/48/1/015001/gabae17ieqn1.gif] {${\Delta}{m}_{21}^{2}/{\Delta}{m}_{31}^{2}$} and sin 2 ( θ 13 ) and on the non-diagonal NSI parameters, but keeps

The luminosity constraint is a very precise relationship linking the power released by the Sun as photons and the solar neutrino fluxes. Such a relation, which is a direct consequence of the physical processes controlling the production and the transport of energy in the solar interior, is of great importance for the studies of solar neutrinos and has a special role for the search of neutrinos from

We perform extended Thomas–Fermi calculations in the Wigner–Seitz cell below and above neutron drip with realistic functionals. The resulting energy density is decomposed as a sum of bulk terms and a surface term, and a compressible liquid drop analytical formula is used to fit the surface tension. The effect of curvature terms and neutron skin is studied in detail. A very good reproduction of the

In the analysis of the heavy-ion above-barrier fusion cross-sections of complex nuclei, the relativistic effects are usually ignored. In the present work, we undertake a step toward accounting for these effects. Namely, the nucleus–nucleus interaction potential is obtained using the double-folding model with six different effective nucleon–nucleon (NN) forces coming from the relativistic mean field

During magnetic reconnection, such as in the magnetopause of magnetized planets, the upstream plasma conditions between the two inflow regions are usually different. In this paper, we demonstrate that such a kind of asymmetric reconnection can be studied in the laboratory using the recently proposed experimental scheme where reconnection is driven by laser-powered capacitor coils. Two-dimensional particle-in-cell

We propose a novel flux-surface parameterization suitable for local MHD equilibrium calculations with strongly-shaped flux surfaces. The method is based on a systematic expansion in a small number of intuitive shape parameters, and reduces to the well-known Miller D-shaped parameterization in the limit where some of the coefficients are set to zero. The new parameterization is valid for up-down asymmetric

Emission spectra of neural tungsten (W) sputtered by impact of argon (Ar) ions in a weakly magnetized (<0.1 T) Ar plasma were measured using a high resolution spectrometer at normal incidence angle to the surface. The measurements were performed for the mono-energetic impact energies between 70 and 150 eV using the neutral tungsten (W I) line at 4982.593 Å. The line shape of this line was simulated

ABSTRACT We have been developing energy-resolved X-ray computed tomography (ER-CT) using a novel detector system called a transXend detector, which measures X-rays as electric current and gives the energy distribution of X-rays by unfolding analysis. This paper presents the results of the sugar content measurements of kiwifruit samples by ER-CT. Because the change of linear attenuation coefficients

Abstract Lead converter was irradiated with electron beams with energies of 60, 80 and 100 MeV. And holmium samples were irradiated with a flux of bremsstrahlung, which was formed in a lead converter. The rates of about 20 photonuclear reactions in 165Ho, which are induced by bremsstrahlung, were measured. Simulations to determine the fluence of electrons, photons, neutrons for holmium samples and

Abstract In this paper, we report on the study of the optical properties of YAG:Ce and GGG:Ce garnet crystals after irradiation in a 660 MeV proton beam with a fluence up to 8.9 × 1014 protons/cm2. We found that the transparency of both crystals fell by no more than 7% in the region of their own luminescence. The light yield of the YAG:Ce sample, measured one year after the irradiation, dropped by

Abstract Additional proton beams with variable energy are simulated by the Monte Carlo method for testing the radiation resistance of electronics and other applications on the SC-1000 synchrocyclotron at the Konstantinov Institute of Nuclear Physics (PNPI). It is established that the spectrum of beams with a variable energy of ~62, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 MeV achieved

Abstract Thunderclouds act as the sources of energetic radiation, the main components of which are gamma particles and electrons. The radiation can be registered by satellite or ground-based detectors. The effect is caused by the bremsstrahlung of electrons accelerated by the cloud electric field. The study of high-energy atmospheric phenomena requires analyzing the data on the distribution of cloud

Abstract This publication is devoted to the analysis of ceramic items found in Bolgar, the capital of Volga Bulgaria (now it is the territory of Tatarstan, Russia). Neutron activation analysis (NAA) and X-ray fluorescence (XRF) analysis of the ceramic paste of glazed medieval stonepaste ceramics (fritware) was carried out by the NAA group at the IREN facility of the Frank Laboratory of Neutron Physics

Abstract Surface waves propagating in the semi-bounded collisional hot QCD medium (quark-gluon plasma) are considered. To investigate the effect of collisions as damping and non-ideality factor, the longitudinal and transverse dielectric functions of the quark-gluon plasma are used within the Bhatnagar–Gross–Krook (BGK) approach. The results were obtained both analytically and numerically in the long

Abstract The vertex silicon detector is part of the NICA-MPD tracking system designed for efficient registration of short-lived products of nucleus–nucleus interactions. This paper presents the results of a computer simulation of the identification capability of the MPD tracking system which includes a Time-Projection Chamber (TPC) and a vertex detector based on Monolithic Active Pixel Sensors (MAPS’s)

Abstract This work relates to the study and characterization of the CTDI (Computed Tomography Dose Index) for the 16 slices CT scanner. The CTDI has been simulated with the Monte Carlo code GATE for PMMA (polymethylmethacrylate) digital phantoms of various diameters (1–50 cm) at various kVp (80, 110, 130) and mAs (100, 200, 300, 400 mAs) levels. After using a High-Performance Computing (HPC) station

Abstract The description of the muon capture system units with different targets (gas and solid-state) is presented. Using the muon-event selection system and high-purity germanium (HPGe) detectors, precise measurements of the time-energy distributions following ordinary muon capture in the isotopically-enriched 130Xe, 82Kr, and 24Mg nuclei were performed. The optimal parameters of the muon capture

Abstract This paper investigates an analytical illustration of ignition conditions for the aneutronic reaction of proton-boron plasma in the presence of the magnetic field for fusion. In particular, the criterion for this plasma target is derived through two-temperature Lindl–Widner diagrams. Since the heating and cooling terms in the energy balance equation are affected by inequality between ions

Abstract For ordinary (bipolar) radiation, the integral of the electric-field strength in time is zero. The possibility of generating unipolar radiation was theoretically considered in (E.G. Bessonov. Preprint no. 76, Lebedev Physical Institute, Academy of Sciences of the Soviet Union, Moscow, 1990) for the first time. In this work, unipolar radiation is defined as radiation for which the integral

Abstract In this paper we conduct a phenomenological study for the search of evidence for the intrinsic charm mechanism in double \({J \mathord{\left/ {\vphantom {J \psi }} \right. \kern-0em} \psi }\) production at the COMPASS experiment using the CERN \({{\pi }^{ - }}\) beam at 190 GeV/c. Estimations on \({J \mathord{\left/ {\vphantom {J \psi }} \right. \kern-0em} \psi }\) pair cross-sections and

Abstract Today the task of ensuring the radiation resistance of ICs for space exploration is very important. To solve this problem, a detailed examination of radiation effects on electronics is required. In this paper, the DPS-NICA project, aimed at solving these problems, is presented, as are preliminary simulation results that confirm the operability of the fundamental methods of this project.

Abstract We discus the gauge dependence of one-loop divergences in the six-dimensional \(\mathcal{N} = (1,1)\) supersymmetric Yang–Mills (SYM) theory.

Depending on the point of view, the Casimir force arises from variation in the energy of the quantum vacuum as boundary conditions are altered or as an interaction between atoms in the materials that form these boundary conditions. Standard analyses of such configurations are usually done in terms of ordinary, equal-time (Minkowski) coordinates. However, physics is independent of the coordinate choice

At present, the magnetohydrodynamic (MHD) flows of liquid-metal (LM) Pb-17Li and pure Li through a conduit with four-parallel ducts having partly different electrical conductivity are numerically analyzed. Here, the conduit system can cause counter flow and co-flow, which can be a good candidate for the design of duct flow in the liquid-metal blanket. Meanwhile, since lithium (Li) and eutectic lead-lithium

Following the work of Chen et al. [Quantum Inf. Process.16, 201 (2017)] and Zhang [Mod. Phys. Lett. A34, 1950290 (2019)], we propose a scheme for cyclic quantum teleportation (CYQT) in which three participants Alice, Bob and Charlie can teleport three arbitrary single-qubit information states cyclically among themselves by using GHZ-like states. Chen et al. and Zhang proposed schemes for CYQT and bidirectional

The spacial expansion of the universe could be described as a tendency for satisfying holographic equipartition which inevitably demands the presence of dark energy. We explore whether this novel idea proposed by Padmanabhan gives any additional insights into the nature of dark energy. In particular, we obtain the constraints imposed by the law of emergence on the equation of state parameter, ω. We

In the framework of the new version of the gedanken experiments proposed by Sorce and Wald, we investigate the weak cosmic censorship conjecture (WCCC) for an Einstein–Maxwell–Dilaton–Axion (EMDA) black hole. Our result shows that no violations of WCCC can occur with the increase of the background solution parameters for this near-extremal EMDA black hole when the second-order correction of the perturbations

Motivated by particle physics results, we investigate certain dyonic solutions in arbitrary dimensions. Concretely, we study the stringy constructions of such objects from concrete compactifications. Then, we elaborate their tensor network realizations using multistate particle formalism.

In this study, a thermal-hydraulic analysis code has been developed for primary system of the integrated small modular pressurized water reactor IRIS (International Reactor Innovative and Secure). Numerical model of the primary system has been established, and characteristics of equipment and layout are considered. The sub-channel model is used for performance analysis of hot channel in the core. In

An uncertainty analysis based on the Latin Hypercube Sampling (LHS) method and MELCOR code for hydrogen production during a SA in WWER1000 nuclear reactor is presented. Firstly, the total amount of the produced hydrogen during the SBO with Large Break Loss of Coolant Accident (SBO-LBLOCA), SBO with Small Break Loss of Coolant Accident (SBO-SBLOCA) and Station Black Out (SBO) is estimated by the MELCOR

In this paper, the elliptical drop deformation process in ambient liquid under an impact was systematically studied based on an experimental method combined with computational fluid dynamics (CFD). The effects of nondimensional parameters (i.e., shape parameter e, viscosity ratio η, and density ratio ε) on the vortex dynamics during the drop deformation process in ambient liquids were systematically

A neutron counting (NC) technique for in-beam active neutron interrogation has been developed and deployed at the National Research Universal (NRU) reactor of the Canadian Nuclear Laboratories (CNL). A distinguishing feature of the method is that the sample to be interrogated remains stationary during the irradiation and counting periods for the detection of prompt and delayed neutrons. The NC system

Up to now, different methods have been developed for estimation of buildup factor (BF). However, either expensive estimation or time-consuming estimation are major restrictions/challenges of these methods. In this study a new technique utilizing combination of Monte Carlo method and the Bayesian regularization (BR) learning algorithm of multilayer feed-forward neural network (FFNN) is employed for

The study of the influence of different densities on the mixing behavior is very important in industries such as nuclear reactors. In this study a PLIF experiments and CFD simulation were performed to study the effect of slug densities on the mixing process in the vessel down-comer. Three different tests of different injected slug densities 1028, 1060 and 1090 kg/m3 were performed in HEU facility.

Understanding of hydrogen isotope behaviors in plasma-facing wall is important from viewpoints of fuel control and tritium safety. Tungsten (W) is a candidate material of plasma-facing components. In this study, hydrogen diffusion coefficient and hydrogen solubility constant in the W deposition layer formed by hydrogen plasma sputtering were obtained by gas-driven permeation experiments. The hydrogen

Multiple methods for deriving the energy-momentum tensor for a physical theory exist in the literature. The most common methods are to use Noether's first theorem with the 4-parameter Poincaré translation, or to write the action in a curved spacetime and perform variation with respect to the metric tensor, then return to a Minkowski spacetime. These are referred to as the Noether and Hilbert (metric/

In this paper, we investigate lepton mass spectra, flavor mixing and CP violation with a modular S4 symmetry under the assumption that neutrinos are Dirac fermions. We find that the Majorana mass term can be forbidden by adjusting the weight of the right-handed neutrino superfields. We study the scenarios where modular forms in the neutrino sector take the lowest non-trivial weight two, while those

The present paper represents an attempt for a very generic string inspired theory of gravitation, based on a stringy action in the teleparallel gravity which includes a specific functional which depends on the scalar field and its kinetic energy, as well as the torsion and boundary terms, embedding also possible effects from the teleparallel Gauss–Bonnet invariants. After we deduce the field equations

Rutherford Backscattering Spectrometry (RBS) is a powerful ion beam analysis technique in frequent use within materials science. The recent emergence of targets incorporating complex features such as ultra-scaled diffusion barriers and isotopically-enriched films has started to push the limits of the technique, necessitating the expanded use of systems with a higher energy resolution. The increased

A distributed parameter model has been proposed for the transient heat transfer calculation of IVR in this paper. The model, composed by the free convection model based on empirical correlations and the isothermal solidification model based on the moving boundary method, has been verified with the LIVE-L5L experiment. The result deviations of key parameters, including the average temperature of molten

A mathematical model for three layer media with different thermal conductivities is presented for analyzing the three-dimensional heat conduction of the repository. The solutions to the temperature distribution in the bentonite block layer, bentonite pellet layer and surrounding rock were derived through applying the Fourier and Laplace transforms upon the heat conduction equations. These analytical

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IEEE Transactions on Nuclear Science is pleased to announce that Dr. Sang-Ho Kim has been appointed as an Associate Editor for Accelerator Technology papers.

The development of a four vane 3-MeV radio frequency quadrupole is under progress at Raja Ramanna Centre for Advanced Technology, as part of the Indian facility for spallation source. This quadrupole will be powered by four identical 150-kW solid-state amplifiers, each operating at 325 MHz. This article describes the design details, rigorous testing, and measured results of the first such constructed

The technique of spectral radiography has been shown to accurately discriminate a material’s elemental composition by using known X-ray physics. In previous work, we presented a system for determining the total compositional mass of UO 2 powder. This is achieved with a state-of-the-art pixelated spectrometer and a high-fidelity physical model. Similar to other radiographs, the system suffers from partial-volume

Recent material advancements in organic plastic scintillators enable marked increases in material detection efficiency, light yield, and pulse shape discrimination properties. These advances may resolve significant capability gaps for low-cost, portable, and durable dual-particle imaging (DPI) systems for nuclear safety, security, and safeguard purposes. One such material, a 21% bismuth-loaded polyvinyl

A special total-ionizing-dose-induced short channel effect in thin-film partially depleted silicon-on-insulator (PDSOI) technology is found. Short devices suffer more significant total-ionizing-dose-induced threshold voltage shift of the front-gate main transistor. The devices under pass-gate (PG) bias show worse threshold voltage shift of the front-gate main transistor than the devices under ON bias

In harsh radiation environments, it is well known that the angle of incidence of impinging particles against the surface of the operating devices has significant effects on their sensitivity. This article discusses the sensitivity underestimations that are made if particle isotropy is not taken into account, by means of an analytical study made with a single-event upset predictive platform. To achieve