Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Martinou Andriana"'
Publikováno v:
EPJ Web of Conferences, Vol 304, p 04005 (2024)
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 β and γ in medium-mass and heavy nuclei. Major steps forward, in
Externí odkaz:
https://doaj.org/article/4c4ee211fb2a4ee891742740988ddefa
Autor:
Bonatsos, Dennis, Martinou, Andriana, Peroulis, S. K., Petrellis, D., Vasileiou, P., Mertzimekis, T. J., Minkov, N.
The proxy-SU(3) symmetry predicts, in a parameter-free way, the collective deformation variables beta and gamma in even-even atomic nuclei away from closed shells based on the highest weight irreducible representations (irreps) of SU(3) in the releva
Externí odkaz:
http://arxiv.org/abs/2412.03692
Autor:
Bonatsos, Dennis, Martinou, Andriana, Peroulis, S. K., Petrellis, D., Vasileiou, P., Mertzimekis, T. J., Minkov, N.
The proxy-SU(3) symmetry predicts, in a parameter-free way, based only on the Pauli principle and the short-range nature of the nucleon-nucleon interaction, non-vanishing values of the collective variable gamma almost everywhere across the nuclear ch
Externí odkaz:
http://arxiv.org/abs/2411.12281
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. 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:
Nuclear Physics A Volume 1028, December 2022, 122540
A simple systematic procedure to construct the proton-neutron unitary, $u_{\text{sd}}^{\pi \nu }{(12)}$, orthogonal, $o_{\text{sd}}^{\pi \nu }{(12)}$, and quasi-spin $\text{su}_{\text{sd}}^{\pi \nu }{(1,1)}$ algebras of the sd bosonic system is prese
Externí odkaz:
http://arxiv.org/abs/2311.03960
Publikováno v:
EPJ Web of Conferences, Vol 252, p 02006 (2021)
The consequences of the attractive, short-range nucleon-nucleon (NN) interaction on the wave functions of nuclear models bearing the SU(3) symmetry are reviewed. The NN interaction favors the most symmetric spatial SU(3) irreducible representation (i
Externí odkaz:
https://doaj.org/article/8f5470d9c0cb496e8fd9fe6e7ccfb4c8
Autor:
Martinou Andriana
Publikováno v:
EPJ Web of Conferences, Vol 252, p 02005 (2021)
The phenomenon of shape coexistence in a nucleus is about the occurence of two different nuclear states with drastically different shapes, lying close in energy. It is commonly seen in the data, that such coexisting states manifest in specific nuclei
Externí odkaz:
https://doaj.org/article/d782c3f7eaf7490e90e9f2d49eaee9f5
Autor:
Bonatsos Dennis, Martinou Andriana, Assimakis I.E., Peroulis S.K., Sarantopoulou S., Minkov N.
Publikováno v:
EPJ Web of Conferences, Vol 252, p 02004 (2021)
Proxy-SU(3) symmetry is an approximation scheme extending the Elliott SU(3) algebra of the sd shell to heavier shells. When introduced in 2017, the approximation had been justified by calculations carried out within the Nilsson model. Recently our gr
Externí odkaz:
https://doaj.org/article/ff4ba18a756540bf86ac0e2a079465ba
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