Nuclear Structure And Reaction For Exotic Nuclei Within Relativistic And Non Relativistic Formalisms

Abstract

In the mass region A and#8776; 74 196, the astrophysically important and#119878;-factor of 36 and#119901;-nuclei newlinethat are known to us is studied with the help of (and#119901; and#8722; and#120574; ) reactions at low energy. The newlineproperties of nuclei in their ground states, nuclear total reaction cross-section and newlineastrophysical and#119878;-factor are discussed in details. Also, the astrophysical rate of (and#119901; and#8722; and#120574;) newlinereaction is explained. For this, the density-dependent M3Y (DDM3Y) force is folded to newlinethe spherical densities obtained from RMF formalism. These nuclear density profiles are newlinecalculated with various force parameters like G1, G2, NL1, NL2, NL3*, NL- SH, DDME1, newlineDD-ME2 and DD-PC1. We have also studied that the astrophysical and#119878;-factor is newlineindependent of nuclear density and out calculated results are matched with the newlineexperimental observations whenever available along with the standard NON-SMOKER newlinevalues. newlineThe density dependence of nuclear symmetry energy (NSE) in deformed and#119878; and#1051445;and#1051450;and#1051446; and#119898; newlineisotope is explained in detail with the background of conversion of the deformed newlinedensity into spherical equivalent by utilizing various techniques. The variation in the newlinenuclear symmetry energy, utilizing the spherical equivalent density that is extracted newlinefrom various procedures within the coherent density fluctuation model is presented. newlineThe axially deformed density obtained from relativistic mean-field formalism has been newlinemodified into the spherical equivalent density by using different procedures such as the newlineGaussian fitting, woods-Saxon fitting and the multipole expansion methods. newlineLooking at the importance of nuclear energy and the abundance of thorium in newlineour country, the various bulk and fission properties like nuclear excitation energy, newlinespecific heat, root mean square radius, the Q-value and and#945;-decay half-lfe as well as and#946;- newlinedecay half-life etc. of thermally fissile and#1051446;and#1051445;and#1051450;and#1051455;and#1051446; Th nuclei are analyzed. This is studied newlineusing modified parameter sets like FSUGarnet and IOPB-I, with the temperature newlinedependent effective relativistic mean field (E-RMFT) formalism. The calculated newlineoutcomes are compared w