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The Physics Case for an Electron-Muon Collider Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-02-26 Meng Lu; Andrew Michael Levin; Congqiao Li; Antonios Agapitos; Qiang Li; Fanqiang Meng; Sitian Qian; Jie Xiao; Tianyi Yang
An electron-muon collider with an asymmetric collision profile targeting multi-ab-1 integrated luminosity is proposed. This novel collider, operating at collision energies of, e.g., 20–200 GeV, 50–1000 GeV, and 100–3000 GeV, would be able to probe charged lepton flavor violation and measure Higgs boson properties precisely. The collision of an electron and muon beam leads to less physics background
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Aspects of Semiclassical Black Holes: Development and Open Problems Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-02-25 Alexander Y. Yosifov
The current work is a review, dedicated to the study of semiclassical aspects of black holes. We begin by briefly looking at the main statements of general relativity. We then consider the Schwarzschild, Kerr, and Reissner-Nordstrom black hole solutions and discuss their geometrical properties. Later, the thermodynamic nature of black holes is established. In light of this, we formulate the information
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Event Shape and Multiplicity Dependence of Freeze-Out Scenario and System Thermodynamics in Proton+Proton Collisions at Using PYTHIA8 Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-02-23 Sushanta Tripathy; Ashish Bisht; Raghunath Sahoo; Arvind Khuntia; Malavika Panikkassery Salvan
Recent observations of QGP-like conditions in high-multiplicity pp collisions from ALICE experiment at the LHC warrant an introspection whether to use pp collisions as a baseline measurement to characterize heavy-ion collisions for the possible formation of a Quark-Gluon Plasma. A double differential study of the particle spectra and thermodynamics of the produced system as a function of charged-particle
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Hořava-Lifshitz Scalar Field Cosmology: Classical and Quantum Viewpoints Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-02-20 Fatimah Tavakoli; Babak Vakili; Hossein Ardehali
In this paper, we study a projectable Hořava-Lifshitz cosmology without the detailed balance condition minimally coupled to a nonlinear self-coupling scalar field. In the minisuperspace framework, the super-Hamiltonian of the presented model is constructed by means of which some classical solutions for the scale factor and scalar field are obtained. Since these solutions exhibit various types of singularities
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Analytical Bound State Solutions of the Klein-Fock-Gordon Equation for the Sum of Hulthén and Yukawa Potential within SUSY Quantum Mechanics Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-02-16 A. I. Ahmadov; S. M. Aslanova; M. Sh. Orujova; S. V. Badalov
The relativistic wave equations determine the dynamics of quantum fields in the context of quantum field theory. One of the conventional tools for dealing with the relativistic bound state problem is the Klein-Fock-Gordon equation. In this work, using a developed scheme, we present how to surmount the centrifugal part and solve the modified Klein-Fock-Gordon equation for the linear combination of Hulthén
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Spin Splitting Spectroscopy of Heavy Quark and Antiquarks Systems Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-11-24 Hesham Mansour; Ahmed Gamal; M. Abolmahassen
Phenomenological potentials describe the quarkonium systems like where they give a good accuracy for the mass spectra. In the present work, we extend one of our previous works in the central case by adding spin-dependent terms to allow for relativistic corrections. By using such terms, we get better accuracy than previous theoretical calculations. In the present work, the mass spectra of the bound
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Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-01-19 Daba Meshesha Gusu; M. Vijaya Santhi
In this paper, we analyze anisotropic and homogeneous Bianchi type V spacetime in the presence of dark matter and holographic dark energy model components in the framework of general relativity and Lyra’s geometry. The solutions of differential equation fields have been obtained by considering two specific cases, namely, the expansion scalar in the model is proportional to the shear scalar and the
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Noncommutative Correction to the Entropy of BTZ Black Hole with GUP Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-01-12 M. A. Anacleto; F. A. Brito; B. R. Carvalho; E. Passos
We investigate the effect of noncommutativity and quantum corrections to the temperature and entropy of a BTZ black hole based on a Lorentzian distribution with the generalized uncertainty principle (GUP). To determine the Hawking radiation in the tunneling formalism, we apply the Hamilton-Jacobi method by using the Wentzel-Kramers-Brillouin (WKB) approach. In the present study, we have obtained logarithmic
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An Analysis of Transverse Momentum Spectra of Various Jets Produced in High Energy Collisions Adv. High Energy Phys. (IF 1.422) Pub Date : 2021-01-11 Yang-Ming Tai; Pei-Pin Yang; Fu-Hu Liu
With the framework of the multisource thermal model, we analyze the experimental transverse momentum spectra of various jets produced in different collisions at high energies. Two energy sources, a projectile participant quark and a target participant quark, are considered. Each energy source (each participant quark) is assumed to contribute to the transverse momentum distribution to be the TP-like
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Relativistic Rotating Electromagnetic Fields Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-12-29 H. Vargas-Rodríguez; A. Gallegos; M. A. Muñiz-Torres; H. C. Rosu; P. J. Domínguez
In this work, we consider axially symmetric stationary electromagnetic fields in the framework of special relativity. These fields have an angular momentum density in the reference frame at rest with respect to the axis of symmetry; their Poynting vector form closed integral lines around the symmetry axis. In order to describe the state of motion of the electromagnetic field, two sets of observers
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Microstructure and Continuous Phase Transition of the Einstein-Gauss-Bonnet AdS Black Hole Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-12-23 Yun-Zhi Du; Hui-Hua Zhao; Li-Chun Zhang
The phase transition of the Einstein-Gauss-Bonnet AdS black hole has the similar property with the van der Waals thermodynamic system. However, it is determined by the Gauss-Bonnet coefficient , not only the horizon radius. Furthermore, the phase transition is not the pure one between a big black hole and a small black hole. With this issue, we introduce a new order parameter to investigate the critical
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Helicity Amplitudes for Generic Multibody Particle Decays Featuring Multiple Decay Chains Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-12-21 Daniele Marangotto
We present the general expression of helicity amplitudes for generic multibody particle decays characterised by multiple decay chains. This is achieved by addressing for the first time the issue of the matching of the final particle spin states among different decay chains in full generality for generic multibody decays, proposing a method able to match the exact definition of spin states relative
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Bianchi Type- Bulk Viscosity with a DE Cosmological Model Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-12-04 Daba Meshesha Gusu
The finding article presents Bianchi type- universe in the presence of bulk viscous and DE fluid nature of a cosmological model. The solutions of field equations were obtained by assuming hybrid expansion law. The physical significance of the obtained findings illustrates the dominance of bulk viscosity in early and dominance of dark energy fluid emergences in late. This leads to indicate the presence
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DUNE Prospect for Leptophobic Dark Matter Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-11-27 Sabeeha Naaz; Jyotsna Singh; R. B. Singh
Highly energetic proton/electron beam fixed-target experiments extend an opportunity to probe the sub-GeV dark matter and associated interactions. In this work, we have explored the sensitivity of DUNE (Deep Underground Neutrino Experiment) for sub-GeV leptophobic dark matter, i.e., this dark matter barely couples with the leptons. Baryon number gauge theory can predict the existence of leptophobic
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Constraints on Neutrino Electric Millicharge from Experiments of Elastic Neutrino-Electron Interaction and Future Experimental Proposals Involving Coherent Elastic Neutrino-Nucleus Scattering Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-11-27 A. Parada
In several extensions of the Standard Model of Particle Physics (SMPP), the neutrinos acquire electromagnetic properties such as the electric millicharge. Theoretical and experimental bounds have been reported in the literature for this parameter. In this work, we first carried out a statistical analysis by using data from reactor neutrino experiments, which include elastic neutrino-electron scattering
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Axial Symmetry Cosmological Constant Vacuum Solution of Field Equations with a Curvature Singularity, Closed Time-Like Curves, and Deviation of Geodesics Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-11-19 Faizuddin Ahmed; Bidyut Bikash Hazarika; Debojit Sarma
In this paper, we present a type D, nonvanishing cosmological constant, vacuum solution of Einstein’s field equations, extension of an axially symmetric, asymptotically flat vacuum metric with a curvature singularity. The space-time admits closed time-like curves (CTCs) that appear after a certain instant of time from an initial space-like hypersurface, indicating it represents a time-machine space-time
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Energy-Dependent Chemical Potentials of Light Hadrons and Quarks Based on Transverse Momentum Spectra and Yield Ratios of Negative to Positive Particles Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-11-05 Xing-Wei He; Feng-Min Wu; Hua-Rong Wei; Bi-Hai Hong
We describe the transverse momentum spectra or transverse mass spectra of , , , and produced in central gold-gold (Au-Au), central lead-lead (Pb-Pb), and inelastic proton-proton (pp) collisions at different collision energies range from the AGS to LHC by using a two-component (in most cases) Erlang distribution in the framework of multisource thermal model. The fitting results are consistent with the
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A New Description of Transverse Momentum Spectra of Identified Particles Produced in Proton-Proton Collisions at High Energies Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-10-30 Pei-Pin Yang; Fu-Hu Liu; Raghunath Sahoo
The transverse momentum spectra of identified particles produced in high energy proton-proton collisions are empirically described by a new method with the framework of the participant quark model or the multisource model at the quark level, in which the source itself is exactly the participant quark. Each participant (constituent) quark contributes to the transverse momentum spectrum, which is described
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Tsallisian Gravity and Cosmology Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-10-07 Kavoos Abbasi; Shirvan Gharaati
In this paper, we adopt the Verlinde hypothesis on the origin of gravity as the consequence of the tendency of systems to increase their entropy and employ the Tsallis statistics. Thereinafter, modifications to the Newtonian second law of motion, its gravity, and radial velocity profile are studied. In addition, and in a classical framework, the corresponding cosmology and also its ability in describing
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Boson Production via - and Pb-Pb Collisions at Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-24 Leonard S. Kisslinger; Debasish Das
We estimate the production of bosons, with as the component of a vector boson, via - collisions using previous work on production in - collisions, with the new aspect being the creation of bosons via quark interactions. We then estimate the production of bosons via Pb-Pb collisions using modification factors from previous publications.
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Scalar Particles Tunneling Radiation in the Demianski-Newman Spacetime with Influences of Quantum Gravity Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-23 Zhonghua Li
In this paper, using Hamilton-Jacobi ansatz, we investigate scalar particle tunneling radiation in the Demianski-Newman spacetime. We get the effective temperature with influences of quantum gravity and compare this temperature with the original temperature of the Demianski-Newman black hole. We find that it is similar to the case of fermions; for scalar particles, the influence of quantum gravity
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The Nonequilibrium Back Reaction of Hawking Radiation to a Schwarzschild Black Hole Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-17 He Wang; Jin Wang
We investigate the nonequilibrium back reaction on the Schwarzschild black hole from the radiation field. The back reactions are characterized by the membrane close to the black hole. When the membrane is thin, we found that larger temperature difference can lead to more significant negative surface tension, larger thermodynamic dissipation cost, and back reaction in energy and entropy as well as larger
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Extracting Maximum Information from Polarised Baryon Decays via Amplitude Analysis: The Case Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-11 Daniele Marangotto
We consider what is the maximum information measurable from the decay distributions of polarised baryon decays via amplitude analysis in the helicity formalism. We focus in particular on the analytical study of the decay distributions, demonstrating that the full information on its decay amplitudes can be extracted from its distributions, allowing a simultaneous measurement of both helicity amplitudes
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The Extension of the Massless Fermion Behaviour in the Cosmic String Spacetime Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-03 Bengü Çağatay; Özlem Yeşiltaş; Anıl L. Aygün
In this work, we have obtained the solutions of a massless fermion which is under the external magnetic field around a cosmic string for specific three potential models using supersymmetric quantum mechanics. The constant magnetic field, energy-dependent potentials, and position-dependent mass models are investigated for the Dirac Hamiltonians, and an extension of these three potential models and their
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Wave Fronts in a Causality-Violating Gödel-Type Metric Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-09-01 Thomas P. Kling; Faizuddin Ahmed; Megan Lalumiere
The light rays and wave fronts in a linear class of the Gödel-type metric are examined to reveal the causality-violating features of the space-time. Noncausal features demonstrated by the development of unusual wave front singularities are shown to be related to the nonmonotonic advance of time along the light rays, as measured by a system of observers at rest with respect to one another with synchronized
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Gravity Effects on Charged Accelerating AdS Black Holes Using Holographic Tools Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-28 Adil Belhaj; Hasan El Moumni; Karima Masmar
We investigate numerically gravity effects on certain AdS/CFT tools including holographic entanglement entropy and two-point correlation functions for a charged single accelerated Anti-de Sitter black hole in four dimensions. We find that both holographic entanglement entropy and two-point correlation functions decrease by increasing the acceleration parameter , matching perfectly with literature.
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Excitation Function of Initial Temperature of Heavy Flavor Quarkonium Emission Source in High Energy Collisions Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-17 Qi Wang; Fu-Hu Liu
The transverse momentum spectra of , , and produced in proton-proton , proton-antiproton , proton-lead , gold-gold , and lead-lead () collisions over a wide energy range are analyzed by the (two-component) Erlang distribution, the Hagedorn function (the inverse power-law), and the Tsallis-Levy function. The initial temperature is obtained from the color string percolation model from the fit by the
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The Nelson-Seiberg Theorem Generalized with Nonpolynomial Superpotentials Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-17 Zhengyi Li; Zheng Sun
The Nelson-Seiberg theorem relates -symmetries to -term supersymmetry breaking and provides a guiding rule for new physics model building beyond the Standard Model. A revision of the theorem gives a necessary and sufficient condition to supersymmetry breaking in models with polynomial superpotentials. This work revisits the theorem to include models with nonpolynomial superpotentials. With a generic
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Massive Spinning Relativistic Particle: Revisited under BRST and Supervariable Approaches Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-17 A. Tripathi; B. Chauhan; A. K. Rao; R. P. Malik
We discuss the continuous and infinitesimal gauge, supergauge, reparameterization, nilpotent Becchi-Rouet-Stora-Tyutin (BRST), and anti-BRST symmetries and derive corresponding nilpotent charges for the one -dimensional (1D) massive model of a spinning relativistic particle. We exploit the theoretical potential and power of the BRST and supervariable approaches to derive the (anti-)BRST symmetries
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Quantum Spectrum of Tachyonic Black Holes in a Brane-Anti-Brane System Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-17 Aroonkumar Beesham
Recently, some authors have considered the quantum spectrum of black holes. This consideration is extended to tachyonic black holes in a brane-anti-brane system. In this study, black holes are constructed from two branes which are connected by a tachyonic tube. As the branes come closer to each other, they evolve and make a transition to thermal black branes. It will be shown that the spectrum of these
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Mass or Energy: On Charge of Gravity Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-07 Zhong-Yue Wang
The gravitational charge should be the energy instead of the mass. This modification will lead to some different results, and the experiments to test the new idea are also presented. In particular, we figure out how to achieve the negative energy and repulsive gravitational force in the lab.
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Supergravity Model of Inflation and Explaining IceCube HESE Data via PeV Dark Matter Decay Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-08-01 Girish Kumar Chakravarty; Najimuddin Khan; Subhendra Mohanty
We construct a unified model of inflation and PeV dark matter with an appropriate choice of no-scale Kähler potential, superpotential, and gauge kinetic function in terms of MSSM fields and hidden sector Polonyi field. The model is consistent with the CMB observations and can explain the PeV neutrino flux observed at IceCube HESE. A Starobinsky-like Higgs-sneutrino plateau inflation is obtained from
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Top Quark Pair-Production in Noncommutative Standard Model Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-21 M. Fisli; N. Mebarki
The differential cross-section of the top quark pair production via the quark-antiquark annihilation subprocess in hadron collision is calculated within the noncommutative standard model. A pure NC analytical expression for the forward-backward asymmetry at the tree level is obtained. Moreover, using recent Tevatron results from the full RUN2 data, a new lower bound on the noncommutative geometry parameter
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Effects of Kaluza-Klein Theory and Potential on a Generalized Klein-Gordon Oscillator in the Cosmic String Space-Time Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-10 Faizuddin Ahmed
In this paper, we solve a generalized Klein-Gordon oscillator in the cosmic string space-time with a scalar potential of Cornell-type within the Kaluza-Klein theory and obtain the relativistic energy eigenvalues and eigenfunctions. We extend this analysis by replacing the Cornell-type with Coulomb-type potential in the magnetic cosmic string space-time and analyze a relativistic analogue of the Aharonov-Bohm
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Nonperturbative and Thermal Dynamics of Confined Fields in Dual QCD Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-09 H. C. Chandola; Deependra Singh Rawat; Dinesh Yadav; H. C. Pandey; H. Dehnen
In order to study the detailed dynamics and associated nonperturbative features of QCD, a dual version of the color gauge theory based on a topologically viable homogeneous fibre bundle approach has been analysed taking into account its magnetic symmetry structure. In the dynamically broken phase of magnetic symmetry, the associated flux tube structure on a sphere in the magnetically condensed state
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Implementation of Adaptive Neuro-fuzzy Model to Optimize Operational Process of Multiconfiguration Gas-Turbines Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-03 Chao Deng; Ahmed N. Abdalla; Thamir K. Ibrahim; MingXin Jiang; Ahmed T. Al-Sammarraie; Jun Wu
In this article, the adaptive neuro-fuzzy inference system (ANFIS) and multiconfiguration gas-turbines are used to predict the optimal gas-turbine operating parameters. The principle formulations of gas-turbine configurations with various operating conditions are introduced in detail. The effects of different parameters have been analyzed to select the optimum gas-turbine configuration. The adopted
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Mass Spectrum of Mesons via the WKB Approximation Method Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-02 Ekwevugbe Omugbe; Omosede E. Osafile; Michael C. Onyeaju
In this paper, we demonstrated that the multiple turning point problems within the framework of the Wentzel-Kramers-Brillouin (WKB) approximation method can be reduced to two turning point one for a nonsymmetric potential function by using an appropriate Pekeris-type approximation scheme. We solved the Schrödinger equation with the Killingbeck potential plus an inversely quadratic potential (KPIQP)
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Probing Scalar and Pseudoscalar Solutions to the Anomaly Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-07-01 Fayez Abu-Ajamieh
I investigate a class of models with scalar and pseudoscalar solutions to the anomaly for both the muon and the electron over the mass range of perturbativity ( GeV), with Yukawa couplings proportional to the lepton’s mass. In particular, I investigate the constraints from BaBar, beam dump experiments, decay measured quantities, LEP mono- searches, searches, and solar and horizontal branch (HB) star
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How to Make the Physical Parameters Small Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-29 Sergey G. Rubin
We study the evolution of the physical parameter values defined at the sub-planckian energies to values at low energies. The Wilson action is the basis of the research. The presence of the compact extra dimensions has two consequences. The positive point is that the integration over extra dimensions is a promising way to substantially reduce the parameters to be comparable with the observational values
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Quantum Influence of Topological Defects on a Relativistic Scalar Particle with Cornell-Type Potential in Cosmic String Space-Time with a Spacelike Dislocation Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-19 Faizuddin Ahmed
We study the relativistic quantum of scalar particles in the cosmic string space-time with a screw dislocation (torsion) subject to a uniform magnetic field including the magnetic quantum flux in the presence of potential. We solve the Klein-Gordon equation with a Cornell-type scalar potential in the considered framework and obtain the energy eigenvalues and eigenfunctions and analyze a relativistic
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Spin-1/2 Particles in Phase Space: Casimir Effect and Stefan-Boltzmann Law at Finite Temperature Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-14 R. G. G. Amorim; S. C. Ulhoa; J. S. da Cruz Filho; A. F. Santos; F. C. Khanna
The Dirac field, spin 1/2 particles, is investigated in phase space. The Dirac propagator is defined. The Thermo Field Dynamics (TFD) formalism is used to introduce finite temperature. The energy-momentum tensor is calculated at finite temperature. The Stefan-Boltzmann law is established, and the Casimir effect is calculated for the Dirac field in phase space at zero and finite temperature. A comparative
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Approximate Solutions to the Klein-Fock-Gordon Equation for the Sum of Coulomb and Ring-Shaped-Like Potentials Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-11 Sh. M. Nagiyev; A. I. Ahmadov; V. A. Tarverdiyeva
We consider the quantum mechanical problem of the motion of a spinless charged relativistic particle with mass , described by the Klein-Fock-Gordon equation with equal scalar and vector Coulomb plus ring-shaped potentials. It is shown that the system under consideration has both a discrete at and a continuous at energy spectra. We find the analytical expressions for the corresponding complete wave
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Dp-brane Dynamics and Thermalization in Type IIB Ben Ami-Kuperstein-Sonnenschein Models Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-11 Dariush Kaviani
We extend and complete our analysis arXiv:1608.02380 and study the induced world volume metrics and Hawking temperatures of all type IIB rotating probe Dp-branes, dual to the temperature of different flavors at finite R-charge, in the Ben Ami–Kuperstein–Sonnenschein holographic models including the effects of spontaneous conformal and chiral flavor symmetry breakdown. The model embeds type IIB probe
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Investigation of a Spin-0 Massive Charged Particle Subject to a Homogeneous Magnetic Field with Potentials in a Topologically Trivial Flat Class of Gödel-Type Space-Time Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-10 Faizuddin Ahmed
In this paper, we investigate the relativistic quantum dynamics of spin-0 massive charged particle subject to a homogeneous magnetic field in the Gödel-type space-time with potentials. We solve the Klein-Gordon equation subject to a homogeneous magnetic field in a topologically trivial flat class of Gödel-type space-time in the presence of Cornell-type scalar and Coulomb-type vector potentials and
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On Regular Black Holes at Finite Temperature Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-10 S. C. Ulhoa; E. P. Spaniol; R. Gomes; A. F. Santos; A. E. Santana
The Thermo Field Dynamics (TFD) formalism is used to investigate the regular black holes at finite temperature. Using the Teleparalelism Equivalent to General Relativity (TEGR), the gravitational Stefan-Boltzmann law and the gravitational Casimir effect at zero and finite temperature are calculated. In addition, the first law of thermodynamics is considered. Then, the gravitational entropy and the
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Excitation Functions of Related Parameters from Transverse Momentum (Mass) Spectra in High-Energy Collisions Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-10 Li-Li Li; Fu-Hu Liu; Muhammad Waqas; Rasha Al-Yusufi; Altaf Mujear
Transverse momentum (mass) spectra of positively and negatively charged pions and of positively and negatively charged kaons, protons, and antiprotons produced at mid-(pseudo)rapidity in various collisions at high energies are analyzed in this work. The experimental data measured in central gold-gold, central lead-lead, and inelastic proton-proton collisions by several international collaborations
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Doubly Charged Lepton Search Potential of the FCC-Based Energy-Frontier Electron-Proton Colliders Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-06-05 A. Ozansoy
We search for the doubly charged leptons () predicted in composite models including extended weak isospin multiplets, namely, and , at the Future Circular Collider- (FCC-) based energy-frontier electron-proton colliders with the center-of-mass energies of TeV, TeV, and TeV, respectively. We deal with the process, calculate the production cross sections, and give the normalized transverse momentum
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Quantum Gravity Correction to Hawking Radiation of the -Dimensional Wormhole Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-29 Ganim Gecim; Yusuf Sucu
We carry out the Hawking temperature of a -dimensional circularly symmetric traversable wormhole in the framework of the generalized uncertainty principle (GUP). Firstly, we introduce the modified Klein-Gordon equation of the spin-0 particle, the modified Dirac equation of the spin-1/2 particle, and the modified vector boson equation of the spin-1 particle in the wormhole background, respectively.
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Dependence of Temperatures and Kinetic Freeze-Out Volume on Centrality in Au-Au and Pb-Pb Collisions at High Energy Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-27 Muhammad Waqas; Fu-Hu Liu; Zafar Wazir
Centrality-dependent double-differential transverse momentum spectra of negatively charged particles (π−, K−, and ) at the mid(pseudo)rapidity interval in nuclear collisions are analyzed by the standard distribution in terms of multicomponent. The experimental data measured in gold-gold (Au-Au) collisions by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC) and in lead-lead (Pb-Pb)
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Modified Anyonic Particle and Its Fundamental Gauge Symmetries Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-22 Mehdi Dehghani; Salman Abarghouei Nejad; Majid Monemzadeh
In this article, we study the possibility of changing a physical degree of freedom of a particle to its quantum spin after quantization is applied. Our approach to do such a survey is increasing the fundamental symmetries of the anyonic particle model with the help of the symplectic formalism of constrained systems. After extracting the corresponding Poisson structure of all constraints, we compare
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Influence of the Effective Potential on the Crossover Width in the Two Flavor Polyakov-Nambu-Jona-Lasinio Model Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-20 E. Valbuena-Ordóñez; N. B. Mata-Carrizal; A. J. Garza-Aguirre; J. R. Morones-Ibarra
We study the strongly interacting matter phase diagram on the plane through the two flavor Polyakov extended NJL model. We compare the phase diagrams obtained from three different effective potentials, focusing on the behavior of the width of the crossover region and the critical end point for each case. We describe various susceptibilities to obtain the chiral crossover and the color deconfinement
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Light Tetraquark State Candidates Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-09 Zhi-Gang Wang
In this article, we study the axialvector-diquark-axialvector-antidiquark type scalar, axialvector, tensor, and vector tetraquark states with the QCD sum rules. The predicted mass for the axialvector tetraquark state is in excellent agreement with the experimental value from the BESIII collaboration and supports assigning the new state to be a tetraquark state with . The predicted mass disfavors assigning
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Dynamical System Perspective of Cosmological Models Minimally Coupled with Scalar Field Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-05-04 S. Surendra Singh; Chingtham Sonia
The stability criteria for the dynamical system of a homogeneous and isotropic cosmological model are investigated with the interaction of a scalar field in the presence of a perfect fluid. In this paper, we depict the dynamical system perspective to study qualitatively the scalar field cosmology under two special cases, with and without potential. In the absence of potential, we get a two-dimensional
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Analytical Solution for the Gross-Pitaevskii Equation in Phase Space and Wigner Function Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-30 A. X. Martins; R. A. S. Paiva; G. Petronilo; R. R. Luz; R. G. G. Amorim; S. C. Ulhoa; T. M. R. Filho
In this work, we study symplectic unitary representations for the Galilei group. As a consequence a nonlinear Schrödinger equation is derived in phase space. The formalism is based on the noncommutative structure of the star product, and using the group theory approach as a guide a physically consistent theory is constructed in phase space. The state is described by a quasi-probability amplitude that
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Study of Induced Decays Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-29 Qin Chang; Xiao-Lin Wang; Jie Zhu; Xiao-Nan Li
In this paper, we investigate the tree-dominated ( and ) decays in the Standard Model with the relevant form factors obtained in the light-front quark model. These decays involve much more helicity states relative to the corresponding and decays, and moreover, the contribution of longitudinal polarization mode ( meson) is relatively small, , compared with the corresponding meson decays. We have also
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Confinement of Fermions in Tachyon Matter Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-25 Adamu Issifu; Francisco A. Brito
In this paper, we develop a phenomenological model inspired by QCD that mimics the QCD theory. We use the gauge theory in color dielectric medium () coupled with fermion fields to produce scalar and vector confinements in the chromoelectric flux tube scenario. The Abelian theory will be used to approximate the non-Abelian QCD theory in a consistent manner. We will calculate vector and scalar glueballs
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Bound State Solutions of Three-Dimensional Klein-Gordon Equation for Two Model Potentials by NU Method Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-17 N. Tazimi; A. Ghasempour
In this study, we investigate the relativistic Klein-Gordon equation analytically for the Deng-Fan potential and Hulthen plus Eckart potential under the equal vector and scalar potential conditions. Accordingly, we obtain the energy eigenvalues of the molecular systems in different states as well as the normalized wave function in terms of the generalized Laguerre polynomials function through the NU
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Phase Transition and Entropy Force between Two Horizons in ()-Dimensional de Sitter Space Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-14 Yang Zhang; Wen-qi Wang; Yu-bo Ma; Jun Wang
In this paper, the effect of the space-time dimension on effective thermodynamic quantities in ()-dimensional Reissner-Nordstrom-de Sitter space has been studied. Based on derived effective thermodynamic quantities, conditions for the phase transition are obtained. The result shows that the accelerating cosmic expansion can be attained by the entropy force arisen from the interaction between horizons
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Intermittency Study of Charged Particles Generated in Pb-Pb Collisions at Using EPOS3 Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-08 Ramni Gupta; Salman Khurshid Malik
Charged particle multiplicity fluctuations in Pb-Pb collisions are studied for the central events generated using EPOS3 (hydro and hydro+cascade) at . Intermittency analysis is performed in the midrapidity region in two-dimensional (, ) phase space within the narrow transverse momentum () bins in the low region (). Power-law scaling of the normalized factorial moments with the number of bins is not
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Non-Abelian Gravitoelectromagnetism and Applications at Finite Temperature Adv. High Energy Phys. (IF 1.422) Pub Date : 2020-04-03 A. F. Santos; J. Ramos; Faqir C. Khanna
Studies about a formal analogy between the gravitational and the electromagnetic fields lead to the notion of Gravitoelectromagnetism (GEM) to describe gravitation. In fact, the GEM equations correspond to the weak-field approximation of the gravitation field. Here, a non-abelian extension of the GEM theory is considered. Using the Thermo Field Dynamics (TFD) formalism to introduce temperature effects
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