Zobrazeno 1 - 10
of 565
pro vyhledávání: '"Minkov, N."'
The proxy-SU(3) symmetry was first presented in HINPw4 in Ioannina in May2017, justified within the Nilsson model and applied to parameter-free predictions of the collective variables beta and gamma in medium-mass and heavy nuclei. Major steps forwar
Externí odkaz:
http://arxiv.org/abs/2409.04357
Publikováno v:
Phys. Rev. C 109, 064315 (2024)
We study the evolution of $K^{\pi}=6^{+}$ and $8^{-}$ two-quasiparticle (q.p.) configurations in the isotopic and isotonic chains of even-even deformed nuclei around $^{178}$Hf and their ability to describe series of observed $K$-isomer excitations w
Externí odkaz:
http://arxiv.org/abs/2408.10420
Publikováno v:
Phys. Scr. 99 (2024) 062003
Prolate to oblate shape transitions have been predicted in an analytic way in the framework of the Interacting Boson Model (IBM), determining O(6) as the symmetry at the critical point. Parameter-independent predictions for prolate to oblate transiti
Externí odkaz:
http://arxiv.org/abs/2404.17782
Publikováno v:
Atoms 11 (2023) 117
The last decade has seen a rapid growth of our understanding of the microscopic origins of shape coexistence, assisted by the new data provided by the modern radioactive ion beam facilities built worldwide. Islands of the nuclear chart in which shape
Externí odkaz:
http://arxiv.org/abs/2308.15393
The quantization of the kinetic energy of a deformed nucleus in curvilinear coordinates in the case of octupole oscillations of its surface firstly has been carried out. The obtained form of the Hamiltonian differs from the previously obtained Hamilt
Externí odkaz:
http://arxiv.org/abs/2307.09773
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 50 (2023) 075105
Systematics of B(E2) transition rates connecting the first excited 0+ state to the first excited 2+ state of the ground state band in even-even nuclei indicates that shape coexistence of the ground state band and the first excited K=0 band should be
Externí odkaz:
http://arxiv.org/abs/2305.17550
Publikováno v:
Symmetry 15 (2023) 169
The microscopic origins and the up-to-now predictions of the proxy-SU(3) symmetry model of atomic nuclei are reviewed. Starting from the experimental evidence for the special role played by nucleon pairs with maximal spatial overlap, the proxy-SU(3)
Externí odkaz:
http://arxiv.org/abs/2212.08494
Autor:
Martinou, Andriana, Bonatsos, Dennis, Peroulis, S. K., Karakatsanis, K. E., Mertzimekis, T. J., Minkov, N.
Publikováno v:
Symmetry 15 (2023) 29
Parameter-free theoretical predictions based on a dual shell mechanism within the proxy-SU(3) symmetry of atomic nuclei, as well as covariant density functional theory calculations using the DDME2 functional indicate that shape coexistence (SC) based
Externí odkaz:
http://arxiv.org/abs/2212.05940
Publikováno v:
Phys. Rev. C 106 (2022) 044323
Using covariant density functional theory with the DDME2 functional and labeling single-particle energy orbitals by Nilsson quantum numbers, a search for particle-hole (p-h) excitations connected to the appearance of shape coexistence is performed fo
Externí odkaz:
http://arxiv.org/abs/2210.16067
Publikováno v:
Nuclear Theory 39 (2022) 3-14
Shape coexistence in even-even nuclei is observed when the ground state band of a nucleus is accompanied by another K=0 band at similar energy but with radically different structure. We attempt to predict regions of shape coexistence throughout the n
Externí odkaz:
http://arxiv.org/abs/2210.12779