scholarly journals Calculation of the Li6 ground state within the hyperspherical harmonic basis

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
A. Gnech ◽  
M. Viviani ◽  
L. E. Marcucci
Keyword(s):  
Ground State ◽  
Hyperspherical Harmonic

CALCULATION OF THE GROUND STATE HYPERFINE STRUCTURE FOR MUONIC HELIUM ATOMS WITH THE USE OF SOME LOCAL PROPERTIES OF THE WAVE FUNCTIONS

2005 ◽  
Vol 19 (18) ◽  
pp. 889-897 ◽  
Author(s):  
M. R. ESKANDARI ◽  
B. REZAIE ◽  
S. MOHAMMADI
Keyword(s):  
Correlation Function ◽  
Hyperfine Structure ◽  
Ground State ◽  
Simple Wave ◽  
Hyperspherical Harmonic ◽  
Wave Functions ◽  
Variational Parameter ◽  
Expectation Values ◽  
Helium Atoms ◽  
Local Properties

The ground-state hyperfine structure and other properties are calculated for muonic helium atoms (3 He +2μ-e- and 4 He +2μ-e-), with the use of some local properties of the wave functions in the domains where two particles are close to each other or far away. Simple wave functions incorporating these properties with one variational parameter is developed. Also, the electron-muon correlation function is considered in proposed wave functions. It has a correct behavior for r12 tending to zero and infinity. The calculated values for hyperfine structure, energy and expectation values of r2n in ground-state, are compared with the multibox variational approach and the correlation function hyperspherical harmonic method. Our obtained results are very close to the values calculated by mentioned methods and giving strong indications that the proposed wave functions in addition to being very simple, provide relatively accurate values for hyperfine structure, energy and expectation values of r2n, emphasizing on the importance of the local properties of the wave functions.

Renilla Bioluminescence: A Morphologic Approach to the Location of Photocytes

1974 ◽  
Vol 32 ◽  
pp. 208-209
Author(s):  
Ben O. Spurlock ◽  
Milton J. Cormier
Keyword(s):  
Excited State ◽  
Ground State ◽  
Molecular Basis ◽  
Light Emission ◽  
Chemical Basis ◽  
Electronic Excited State ◽  
Colonial Form ◽  
The Common ◽  
Eighteenth And Nineteenth Centuries ◽  
Catalyzed Oxidation

The phenomenon of bioluminescence has fascinated layman and scientist alike for many centuries. During the eighteenth and nineteenth centuries a number of observations were reported on the physiology of bioluminescence in Renilla, the common sea pansy. More recently biochemists have directed their attention to the molecular basis of luminosity in this colonial form. These studies have centered primarily on defining the chemical basis for bioluminescence and its control. It is now established that bioluminescence in Renilla arises due to the luciferase-catalyzed oxidation of luciferin. This results in the creation of a product (oxyluciferin) in an electronic excited state. The transition of oxyluciferin from its excited state to the ground state leads to light emission.

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