Zobrazeno 1 - 10
of 702
pro vyhledávání: '"Zamick, L."'
Autor:
Zamick, L.
With a certain approximation for the Coulomb matrix elements in a single j shell of protons and neutrons it is found that wave functions of states of odd angular momentum J in an even-even nucleus are not strongly affected by their presence
Externí odkaz:
http://arxiv.org/abs/1801.02246
Publikováno v:
Phys. Rev. C 96, 064302 (2017)
Calculations in the sd and pf shells reported some time ago by Satu\l a\etal\ [Phys.~Lett.~B~407, 103 (1997)] are redone for an extended analysis of the results. As in the original work, we do calculations for one mass number in each shell and consid
Externí odkaz:
http://arxiv.org/abs/1707.04608
Autor:
Zamick, L.
We consider the expectation value of the quantity [3+ \sigma (1).\sigma (2)]/4 . This has a value +1 for 2 nucleons with spin S=1and zero for S=0. We show that for the jj coupling 2 particle configuration [j(1) j(2)]^{J} the expectation value has the
Externí odkaz:
http://arxiv.org/abs/1608.08272
Publikováno v:
Rom. J. Phys. 63, 301 (2018)
In the single j shell(f_{7/2}){}^{48} Cr is the first even-even nucleus for which there are T=0 (Isoscalar) J=1^{+} states and T=1J=0^{+}These states are here studied. This nucleus ,in the same model space, is mid-shell for both neutrons and protons
Externí odkaz:
http://arxiv.org/abs/1608.02930
Publikováno v:
Phys. Rev. C89, 014316 (2014)
In this work we look at the low lying nuclear structure of several N=Z nuclei residing between the doubly magic nucei ^{40} Ca and ^{100} Sn. Using large shell model codes we calculate and discuus the systematics of enegies. We show energy levels, B(
Externí odkaz:
http://arxiv.org/abs/1307.5735
Autor:
Zamick, L., Escuderos, A.
Publikováno v:
Phys. Rev. C 87, 044302 (2013)
We point out a simplicity that arises when we use an interaction in which only an energy with odd J is non-zero. The emphasis is on J=J_{\text{max}} and in particular J=9^{+} in the g_{9/2} shell. It is noted that high overlaps can be deceptive. In m
Externí odkaz:
http://arxiv.org/abs/1212.6666
Autor:
Zamick, L., Escuderos, A.
Publikováno v:
romanian journal of physics, Volume 58, Number 9-10, 2013 ,1064
We show how degeneracies, accidental or otherwise, can obscure some interesting physics. We further show how one can get around this problem.
Externí odkaz:
http://arxiv.org/abs/1211.3995
Autor:
Zamick, L., Escuderos, A.
We point out a simplicity that arises when we use an interaction in which only an energy with odd J is non-zero. The emphasis is on J= J_{max} and in particular J=9+ in the g_{9/2} shell. It is noted that high overlaps can be deceptive. In many cases
Externí odkaz:
http://arxiv.org/abs/1210.3856
We define the "quadrupole ratio" r_{Q}=\dfrac{Q_{0}(S)}{Q_{0}(B)} where Q_{0}(S) is the intrinsic quadrupole moment obtained from the static quadrupole moment of the 2_{1}^{+} state of an even-even nucleus and Q_{0}(B) the intrinsic quadrupole moment
Externí odkaz:
http://arxiv.org/abs/1208.2682
Autor:
Zamick, L., Escuderos, A.
It is noted that in single j-shell calculations certain odd-spin states in even--even nuclei lie in a narrow energy band; likewise certain states in odd--odd nuclei.
Externí odkaz:
http://arxiv.org/abs/1207.6306