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Optical Model Analysis of Elastic Scattering of 16O + 12C
Issue:
Volume 7, Issue 1, March 2021
Pages:
1-9
Received:
30 July 2020
Accepted:
28 August 2020
Published:
22 January 2021
Abstract: This paper presents the optical model analysis of the elastic scattering of 16O + 12C at the incident energies of 608 and 1503 MeV using optical potentials derived from B3Y-Fetal effective interaction. Optical model (OM) analysis of the elastic data of this system at these incident energies has shown two of the four optical potentials, the DDB3Y1-Fetal (K=176 MeV) and BDB3Y1-Fetal (K=235 MeV), to give a better description of the elastic data than the BDB3Y2-and BDB3Y3-Fetal potentials, making them the best-fit folded potentials, in agreement with previous work done with the M3Y-Reid effective interaction in both identical and non-identical heavy ions. This is a conclusive and convincing confirmation of the concensus among Nuclear Physics scholars, based on OM analyses of heavy ions, that nuclear matter has an underlying soft equation of state. In addition, results of calculations herein have also shown the best-fit folded potentials, the DDB3Y1-and BDB3Y1-Fetal with-227.8 and-220.6 MeV at 608 MeV and-124.3 MeV and-120.5 MeV at 1503 MeV, respectively as the largest values at smaller inter-nuclear distances, to be in good agreement with their counterparts, the DDM3Y1-Reid and BDM3Y1-Reid, whose largest values at smaller inter-nuclear distances are-231.6 and-223.8 MeV at 608 MeV and-138.8 MeV and-134.2 MeV at 1503 MeV respec¬tively, in terms of magnitude, shape and trend. This is a further validation of the viability of the B3Y-Fetal, corroborating the findings of previous studies carried out with it. In the final analysis, the findings of this study have not shown the occurrence of distinctive features of refractive scattering such as Airy minima in the calculated cross sections at both 608 MeV and 1503 MeV in agreement with previous work.
Abstract: This paper presents the optical model analysis of the elastic scattering of 16O + 12C at the incident energies of 608 and 1503 MeV using optical potentials derived from B3Y-Fetal effective interaction. Optical model (OM) analysis of the elastic data of this system at these incident energies has shown two of the four optical potentials, the DDB3Y1-F...
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Magnetic Response of a Charged Brownian Particle Under the Action of Two AC Drive
Issue:
Volume 7, Issue 1, March 2021
Pages:
10-15
Received:
21 December 2020
Accepted:
6 January 2021
Published:
20 February 2021
Abstract: We study the dynamics of a charged Brownian particle in a 2-D harmonic well under the action of two AC driving forces with different amplitudes as well as with a phase difference, ϕ between them. Interestingly we observed that the system exhibits magnetism even in the absence of magnetic field. We have exactly calculated the magnetic moment and investigated the behaviour in the presence of a linear velocity dependent force. The behaviour of the magnetic moment in various parameter regimes of the model is analyzed. The magnetic moment is found to get suppressed with increase in the amplitude of the linear velocity dependent force. Interestingly we observed that when the phase difference between the AC drives lies in between 0 and π/2 , the system shows a paramagnetic behaviour whereas the system shows a diamagnetic behaviour when the phase difference between the AC drives lies in between π/2 and π. These magnetic behaviours have also been confirmed from the parametric plots. For the phase difference between 0 and π/2 , the orbit of precission of the Brownian particle is in the clockwise direction where as for the phase difference between π/2 and π, the orbit of precission of the Brownian particle is in the anticlockwise direction.
Abstract: We study the dynamics of a charged Brownian particle in a 2-D harmonic well under the action of two AC driving forces with different amplitudes as well as with a phase difference, ϕ between them. Interestingly we observed that the system exhibits magnetism even in the absence of magnetic field. We have exactly calculated the magnetic moment and inv...
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Gravitational and Electromagnetic Field of an Isolated Rotating Charged Particle
Issue:
Volume 7, Issue 1, March 2021
Pages:
16-27
Received:
18 February 2021
Accepted:
3 March 2021
Published:
12 March 2021
Abstract: A charged isolated particle with spherically symmetry is considered at origin in empty space. The particle has both mass and charge; therefore it is under the influence of both gravitational and electro-magnetic field. So to find out a line element especial attention is given in Einstein’s gravitational and Maxwell’s electro-magnetic field equations. Initially Einstein’s field equations are considered individually for gravitational and electro-magnetic fields in empty space. In this work initially starts with Schwarzschild like solution and then a simple elegant, systematic method is used. In these methods the e-m field tensor is also used from Maxwell’s electro-magnetic field equations. Finally thus a new metric is found for both positive and negative charged particles. The new metric for electron is not same as the metric is devised by Reissner and Nordstrom. The new metric for proton is used to find another new metric for rotating charged particle. The new metric is extended for the massive body and gives us some new information about the mass required to stop electro-magnetic interaction. It gives interesting information that planet having mass more than 1.21 times of Jupiter mass, live cannot survive. Also gives information that the mass greater than the aforesaid mass there is no electrically charged body in the universe.
Abstract: A charged isolated particle with spherically symmetry is considered at origin in empty space. The particle has both mass and charge; therefore it is under the influence of both gravitational and electro-magnetic field. So to find out a line element especial attention is given in Einstein’s gravitational and Maxwell’s electro-magnetic field equation...
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Application of the Adomian Decomposition Method (ADM) to Solving the Systems of Partial Differential Equations
Justin Mouyedo Loufouilou,
Joseph Bonazebi Yindoula,
Gabriel Bissanga
Issue:
Volume 7, Issue 1, March 2021
Pages:
28-39
Received:
15 January 2021
Accepted:
8 March 2021
Published:
30 March 2021
Abstract: Solving systems of partial differential equations (linear or nonlinear) with dirchelet boundary conditions has rarely made use of the Adomian decompositional method. The aim of this paper is to obtain the exact solution of some systems of linear and nonlinear partial differential equations using the adomian decomposition method.After having generated the basic principles of the general theory of this method, five systems of equations are solved, after calculation of the algorithm.Our results suggest that the use of the adomian method to solve systems of partial differential equations is efficient.However, further research should study other systems of linear or nonlinear partial differential equations to better understand the problem of uniqueness of solutions and boundary conditions.
Abstract: Solving systems of partial differential equations (linear or nonlinear) with dirchelet boundary conditions has rarely made use of the Adomian decompositional method. The aim of this paper is to obtain the exact solution of some systems of linear and nonlinear partial differential equations using the adomian decomposition method.After having generat...
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