Quadrupole collectivity in silicon isotopes approaching neutron number

2007 ◽  
Vol 652 (4) ◽  
pp. 169-173 ◽  
Author(s):  
C.M. Campbell ◽  
N. Aoi ◽  
D. Bazin ◽  
M.D. Bowen ◽  
B.A. Brown ◽  
...  
Keyword(s):  
Neutron Number ◽  
Silicon Isotopes ◽  
Quadrupole Collectivity

scholarly journals Addendum to: “Quadrupole collectivity in silicon isotopes approaching neutron number N=28” [Phys. Lett. B 652 (2007) 169]

2007 ◽  
Vol 656 (4-5) ◽  
pp. 272 ◽  
Author(s):  
C.M. Campbell ◽  
N. Aoi ◽  
D. Bazin ◽  
M.D. Bowen ◽  
B.A. Brown ◽  
...  
Keyword(s):  
Neutron Number ◽  
Silicon Isotopes ◽  
Quadrupole Collectivity

scholarly journals Quadrupole collectivity in neutron-rich Cd isotopes

2014 ◽  
Vol 66 ◽  
pp. 02012
Author(s):  
S. Bönig ◽  
S. Ilieva ◽  
T. Kröll ◽  
M. Scheck ◽  
D. Balabanski ◽  
...  
Keyword(s):  
Cd Isotopes ◽  
Quadrupole Collectivity

scholarly journals Evidence of a sudden increase in the nuclear size of proton-rich silver-96

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
M. Reponen ◽  
R. P. de Groote ◽  
L. Al Ayoubi ◽  
O. Beliuskina ◽  
M. L. Bissell ◽  
...  
Keyword(s):  
Charge Radius ◽  
Density Functional ◽  
Theory Development ◽  
Density Functional Theory Calculations ◽  
Neutron Number ◽  
Nuclear Charge Radius ◽  
Sudden Increase ◽  
Nuclear Theory ◽  
Charge Radii ◽  
Proton Pairing

AbstractUnderstanding the evolution of the nuclear charge radius is one of the long-standing challenges for nuclear theory. Recently, density functional theory calculations utilizing Fayans functionals have successfully reproduced the charge radii of a variety of exotic isotopes. However, difficulties in the isotope production have hindered testing these models in the immediate region of the nuclear chart below the heaviest self-conjugate doubly-magic nucleus 100Sn, where the near-equal number of protons (Z) and neutrons (N) lead to enhanced neutron-proton pairing. Here, we present an optical excursion into this region by crossing the N = 50 magic neutron number in the silver isotopic chain with the measurement of the charge radius of 96Ag (N = 49). The results provide a challenge for nuclear theory: calculations are unable to reproduce the pronounced discontinuity in the charge radii as one moves below N = 50. The technical advancements in this work open the N = Z region below 100Sn for further optical studies, which will lead to more comprehensive input for nuclear theory development.

scholarly journals Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes

2013 ◽  
Vol 110 (24) ◽  
Author(s):  
H. L. Crawford ◽  
R. M. Clark ◽  
P. Fallon ◽  
A. O. Macchiavelli ◽  
T. Baugher ◽  
...  
Keyword(s):  
Quadrupole Collectivity

scholarly journals Silicon isotopes in Antarctic sponges: an interlaboratory comparison

2010 ◽  
Vol 23 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Katharine R. Hendry ◽  
Melanie J. Leng ◽  
Laura F. Robinson ◽  
Hilary J. Sloane ◽  
Jerzy Blusztjan ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Matrix Effects ◽  
Global Climate ◽  
Intermediate Water ◽  
Silicon Isotopes ◽  
Important Player ◽  
Si Isotopes ◽  
Si Isotope ◽  
Additional Reference ◽  
Antarctic Sponges

AbstractCycling of deepwater silicon (Si) within the Southern Ocean, and its transport into other ocean basins, may be an important player in the uptake of atmospheric carbon, and global climate. Recent work has shown that the Si isotope (denoted by δ29Si or δ30Si) composition of deep sea sponges reflects the availability of dissolved Si during growth, and is a potential proxy for past deep and intermediate water silicic acid concentrations. As with any geochemical tool, it is essential to ensure analytical precision and accuracy, and consistency between methodologies and laboratories. Analytical bias may exist between laboratories, and sponge material may have matrix effects leading to offsets between samples and standards. Here, we report an interlaboratory evaluation of Si isotopes in Antarctic and sub-Antarctic sponges. We review independent methods for measuring Si isotopes in sponge spicules. Our results show that separate subsamples of non-homogenized sponges measured by three methods yield isotopic values within analytical error for over 80% of specimens. The relationship between δ29Si and δ30Si in sponges is consistent with kinetic fractionation during biomineralization. Sponge Si isotope analyses show potential as palaeoceaongraphic archives, and we suggest Southern Ocean sponge material would form a useful additional reference standard for future spicule analyses.

scholarly journals Enhanced quadrupole collectivity in doubly-magic 56Ni: Lifetime measurements of the 41+ and 61+ states

2021 ◽  
pp. 136592
Author(s):  
K. Arnswald ◽  
A. Blazhev ◽  
F. Nowacki ◽  
P. Petkov ◽  
P. Reiter ◽  
...  
Keyword(s):  
Lifetime Measurements ◽  
Quadrupole Collectivity

scholarly journals Fusion Hindrance and Quadrupole Collectivity in Collisions of A≃50 Nuclei: The Case of48Ti +58Fe

2015 ◽  
Vol 86 ◽  
pp. 00057 ◽  
Author(s):  
A. M. Stefanini ◽  
G. Montagnoli ◽  
L. Corradi ◽  
S. Courtin ◽  
D. Bourgin ◽  
...  
Keyword(s):  
Quadrupole Collectivity

Transformation of silicon in a sandy beach ecosystem: Insights from stable silicon isotopes from fresh and saline groundwaters

2016 ◽  
Vol 440 ◽  
pp. 207-218 ◽  
Author(s):  
Claudia Ehlert ◽  
Anja Reckhardt ◽  
Janek Greskowiak ◽  
Bianca T.P. Liguori ◽  
Philipp Böning ◽  
...  
Keyword(s):  
Sandy Beach ◽  
Silicon Isotopes
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