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Autor:
Kingan, Arun, Zamick, Larry
Publikováno v:
International Journal of Modern Physics E Vol.27, NO 10 (2018)1850087
In this work we extend a previous study of matrix models of strength distributions. We still retain the nearest neighbor coupling mode but we extend the values the coupling parameter v. We consider extremes, from very smal v to very large v. We first
Externí odkaz:
http://arxiv.org/abs/1811.02562
Autor:
Zamick, Larry, Kingan, Arun
Publikováno v:
International Journal of Modern Physics E Vol. 26 (2018)1850064
In this work we use matrix models to study the problem of strength distributions. This is motivated by noticing near exponential fall offs of strengths in calculated magnetic dipole excitations. We emphasize that the quality of the exponential fall o
Externí odkaz:
http://arxiv.org/abs/1807.08552
In previous works we examined the systematics of magnetic dipole transitions in a single j shell. We here extend the study to large space calculations. We consider Ti and Cr isotopes.. In this work we focus on the B(M1) strength as a function of exci
Externí odkaz:
http://arxiv.org/abs/1803.00645
Publikováno v:
International Journal of Modern Physics E Vol. 27, No. 7 (2018) 1850056
We perform shell model calculations using a quadrupole-quadrupole interaction (Q.Q).We show results in single j shell spaces and the full S-D shell . We show that one gets useful results with Q.Q in both spaces.. We emphasize the importance of the ch
Externí odkaz:
http://arxiv.org/abs/1710.06218
Autor:
Kingan, Arun, Zamick, Larry
Publikováno v:
Phys. Rev. C 98, 014301 (2018)
In this work we calculate the energies odd J$^{+}$ states in selectedeven-even nuclei-$^{44}$ Ti $^{52}$ Fe and $^{96}$Cd. Of particularinterest is the fact that in many cases the first T=0 and the first T=1 state are close in energy. Whether the low
Externí odkaz:
http://arxiv.org/abs/1707.00556
Publikováno v:
International Journal of Modern Physics E Vol. 28,1850090 (2018)
In previous works we examined they systematics of magnetic dipole transitions in a single j shell. We here extend the study to large space calculations.We consider the nuclei $^{44}$ Ti, $^{46}$Ti and $^{48}$C. Of particular interest is the contribut
Externí odkaz:
http://arxiv.org/abs/1707.00266
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
The strong interactions are charge independent. If we limit ourselves to the strong interactions, we have the isospin $T$ as a good quantum number. Here we consider the lack of level repulsion of states of different isospin and how this effect manife
Externí odkaz:
http://arxiv.org/abs/1607.07836
Publikováno v:
International Journal of Modern Physics E, Vol 26, 1750035 (2017)
In previous works we examined the spectra for systems of 2 protons and 2 neutrons, in a single j shell calculation, by obtaining matrix elements from experiment. More recently we considered schematic interactions in the same model space. We continue
Externí odkaz:
http://arxiv.org/abs/1607.00629