Influence of proton shell closure on production and identification of new superheavy nuclei

2012 ◽  
Vol 85 (1) ◽  
Author(s):  
A. N. Kuzmina ◽  
G. G. Adamian ◽  
N. V. Antonenko ◽  
W. Scheid
Keyword(s):  
Superheavy Nuclei ◽  
Shell Closure ◽  
Proton Shell

CLUSTER ASPECTS OF PRODUCTION AND DECAY OF EXOTIC NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2363-2367
Author(s):  
G. G. ADAMIAN ◽  
N. V. ANTONENKO ◽  
A. S. ZUBOV ◽  
W. SCHEID
Keyword(s):  
Exotic Nuclei ◽  
System Model ◽  
Superheavy Nuclei ◽  
Complete Fusion ◽  
Shell Closure ◽  
Fusion Reactions ◽  
Dinuclear System ◽  
Proton Shell

Within the dinuclear system model we analyse the production of yet unknown superheavy nuclei with Z > 118 and neutron-deficient isotopes of Pu in various complete fusion reactions. The yields of superheavies with Z > 118 are sensitive to the location of the next proton shell closure. The emission of neutron from the dinuclear systems is discussed.

scholarly journals Influence of proton shell closure on production of new superheavy nuclei

2012 ◽  
Vol 38 ◽  
pp. 17004
Author(s):  
A. N. Kuzmina ◽  
G. G. Adamian ◽  
N. V. Antonenko
Keyword(s):  
Superheavy Nuclei ◽  
Shell Closure ◽  
Proton Shell

Studies on heavy particle radioactivity from superheavy nuclei leading to doubly magic 304120 daughter nuclei

2017 ◽  
Vol 95 (1) ◽  
pp. 31-37 ◽  
Author(s):  
K.P. Santhosh ◽  
Indu Sukumaran
Keyword(s):  
Scaling Law ◽  
Heavy Particle ◽  
Alpha Decay ◽  
Neutron Number ◽  
Cluster Decay ◽  
Superheavy Nuclei ◽  
Shell Closure ◽  
Proximity Potential ◽  
Particle Decays

The alpha decay and heavy particle radioactivity of the isotopes of even–even superheavy nuclei with Z = 122–132 have been studied within Coulomb and proximity potential model. The predicted half-lives using our model are found to be in agreement with universal formula for cluster decay of Poenaru et al., the universal decay law of Qi et al., and the scaling law of Horoi et al., and most of the estimated values are well within the experimental upper limit (T1/2 < 1030 s). Our work targets the shell closure properties in the superheavy region. From the plots for log10(T1/2) against the neutron number of the daughter nuclei, three prominent minima are observed at N = 178, 184, and 194. The results show that in addition to N = 184, the neutron numbers N = 178 and 194 exhibit extra stability as compared to their neighbours. Based on these important observations, we have identified the possibility of N = 194 being a magic neutron number next to N = 184. Further, a new island of stability in the superheavy region has been predicted around the doubly magic 304120 superheavy nuclei and thus established the role of neutron shell closure in heavy particle decays very well.

Study of the proton shell closure of 208Pb through the 205Tl(, 3He)204Hg reaction

1989 ◽  
Vol 494 (2) ◽  
pp. 244-266 ◽  
Author(s):  
P. Grabmayr ◽  
G.J. Wagner ◽  
H. Clement ◽  
H. Röhm
Keyword(s):  
Shell Closure ◽  
Proton Shell

The proton shell closure at 14C

1979 ◽  
Vol 324 (1) ◽  
pp. 53-62 ◽  
Author(s):  
R.R. Sercely ◽  
R.J. Peterson ◽  
P.A. Smith ◽  
E.R. Flynn
Keyword(s):  
Shell Closure ◽  
Proton Shell

scholarly journals Evidence for the Role of Proton Shell Closure in Quasifission Reactions from X-Ray Fluorescence of Mass-Identified Fragments

2017 ◽  
Vol 119 (22) ◽  
Author(s):  
M. Morjean ◽  
D. J. Hinde ◽  
C. Simenel ◽  
D. Y. Jeung ◽  
M. Airiau ◽  
...  
Keyword(s):  
Shell Closure ◽  
X Ray ◽  
Proton Shell

Study on particle and cluster decay of superheavy nuclei Z = 130–144 using Cubic plus Proximity potential with improved transfer matrix method

2019 ◽  
Vol 28 (07) ◽  
pp. 1950051 ◽  
Author(s):  
G. Naveya ◽  
S. Santhosh Kumar ◽  
S. I. A. Philominraj ◽  
A. Stephen
Keyword(s):  
Transfer Matrix ◽  
Decay Mode ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Alpha Decay ◽  
Cluster Decay ◽  
Superheavy Nuclei ◽  
Shell Closure ◽  
Decay Modes ◽  
Theoretical Approaches

The one-proton emission, alpha decay and cluster decay using a Cubic Plus Proximity model with improved transfer-matrix method are executed for the first time for the study of decay properties of 368 isotopes of nuclei, far from the beta stability line and beyond the islands of stability [Formula: see text] superheavy nuclei are studied within the range [Formula: see text]. The calculated decay half-lives are in good agreement with other theoretical approaches. The signature of neutron shell closure at [Formula: see text] and proton shell closure at [Formula: see text] obtained from half-life curves for emission of different clusters pronounces the previous predictions. Investigation of competition between various decay modes brings out the dominant decay mode associated with an isotope; for a given [Formula: see text] with increasing [Formula: see text] the dominant decay mode is seen to shift from proton decay to alpha decay and finally spontaneous fission. The decay modes and half-lives which are within the limit of experimental detection [Formula: see text] are presented.

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