Ms
Niranjani S
(Department of Information Technology, Mohamed Sathak A.J. College of Engineering, 43, Old Mahabalipuram Road, Sipcot IT Park, Egatur, Chennai - 603 103, India.)
The enormity of data obtained in scientific experiments often necessitates a suitable
graphical representation for analysis. Surface contour is one such graphical
representation which renders a pictorial view that aids in easy data interpretation.
It is essentially a two-dimensional visualization of a three-dimensional surface
plot. Very recently, it has been shown that Super Heavy Elements can exist in a
variety of shapes - spherical, spheroidal and ellipsoidal with or without shape
co-existence. The shapes of such nuclei as predicted by us by diagonalizing the
triaxial Nilsson Hamiltonian in cylindrical representation and using the
Strutinsky-BCS corrections are graphically displayed by surface contours with Origin
software. The obtained results are highly useful in the analysis of the stability of
the Super Heavy Elements. Further, they yield a surprising result that the doubly
magic spherical nucleus after lead (Z=82 and N=126) is SHE (Z=126 and N=184) in the
macroscopic-microscopic method itself.
Summary
The potential energy surfaces of Super Heavy Elements are shown very recently to
take on shapes - spherical, spheroidal and ellipsoidal [1] by the self-consistent
density functional method. These were confirmed by us [2,3] by using the Triaxial
Nilsson-Strutinsky-BCS method. The fixing of the doubly magic spherical nucleus
after lead in the super heavy region is a current exciting problem. This is
resolved in this work by the macroscopic-microscopic method itself for the first
time.
References:
[1] S. Cwiok, P. H. Heenen and W. Nazarewicz, Nature 433,705 (2005).
[2] G.Shanmugam, S.Sudhakar and S.Niranjani, Phys.Rev.C 72, 034310 (2005).
[3] G.Shanmugam, S.Sudhakar, S.Niranjani and D.K.Mohapatra, submitted to Phys.Rev.C
(2005).
Ms
Niranjani S
(Department of Information Technology, Mohamed Sathak A.J. College of Engineering, 43, Old Mahabalipuram Road, Sipcot IT Park, Egatur, Chennai - 603 103, India.)