B(E2)values in neutron-excess nuclei nearA=16

2016 ◽  
Vol 93 (4) ◽  
Author(s):  
H. T. Fortune
Keyword(s):  
2000 ◽  
Vol 85 (13) ◽  
pp. 2673-2676 ◽  
Author(s):  
George M. Fuller ◽  
Jason Pruet ◽  
Kevork Abazajian

1991 ◽  
Vol 43 (5) ◽  
pp. 2211-2223 ◽  
Author(s):  
J.-P. Jeukenne ◽  
C. Mahaux ◽  
R. Sartor
Keyword(s):  

1967 ◽  
Vol 1 (7) ◽  
pp. 434-437 ◽  
Author(s):  
D.H. Davis ◽  
S.P. Lovell ◽  
M. Csejthey-Barth ◽  
J. Sacton ◽  
G. Schorochoff ◽  
...  
Keyword(s):  
K Meson ◽  

Author(s):  
N. Feather

It is generally agreed that the long-range alpha particles of fission are set free before the fragment nuclei have acquired more than a small fraction of their final energy of separation, but whether the alpha particle is liberated before the instant of scission, at that instant, or from one of the fragment nuclei very shortly thereafter, has remained an open question. Each of these views has been seriously advocated. These various hypotheses are examined in relation to recently published information regarding the distribution of mass in low-eneigy ternary fission, and other considerations, and it is suggested that the hypothesis having the strongest claim to attention is that which assumes that the alpha particles originate in the heavy fragments exclusively, being liberated, very shortly after the instant of scission, with probability not much less than unity, from fragment nuclei of low yield and small neutron excess. Conclusions which would follow, if this hypothesis were accepted, are indicated, and possible experimental tests of these conclusions are suggested.


2002 ◽  
Vol 187 ◽  
pp. 23-32
Author(s):  
David Arnett

The possible nature of the first generation of stars is considered, using a star of 25M⊙ as an example. General nucleosynthesis and the production of CNO catalysts is examined in detail. The increase in neutron excess and its significance for yields from explosive burning is discussed. An estimate of the ratio of ionizing photons to heavy elements produced is derived, for use in early universe simulations.


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