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SUMMARY:Exploring shape coexistence and the onset of deformation in Odd-Ev
 en and Even-Even nuclei around A = 100
DTSTART;VALUE=DATE-TIME:20241119T171500Z
DTEND;VALUE=DATE-TIME:20241119T173000Z
DTSTAMP;VALUE=DATE-TIME:20260421T082720Z
UID:indico-contribution-25463@indico.ific.uv.es
DESCRIPTION:Speakers: Esperanza Maya Barbecho (Universidad de Huelva)\nSha
 pe of nuclei is determined by a fine balance between the stabilizing effec
 t of closed shells and the pairing and quadrupole forces that tend to indu
 ce deformation [1]. In the mass region around  A=100\,  there exist clear 
 cut examples of the rapid appearance of deformation such as Zr (even-even)
  [2] and  Nb isotopes (odd-even) [3]\, which can be understood in terms of
  the coexistence of two different configurations\, i.e.\, shape coexistenc
 e. Sr [4] isotopes are also good candidates to study the onset of  nuclear
  deformation and the influence of shape coexistence\, while Ru and Mo [5] 
 isotopes seem to be placed at the border of dilution of shape coexistence 
  In addition\, the structural evolution of odd-mass isotopes in this regio
 n is significant due to the diversity of configurations and coexisting sha
 pes and to the enhancement of the onset of deformation [3].\nIn this contr
 ibution will be used as framework the Interacting Boson-Fermion Model [6] 
 with Configuration Mixing (IBFM-CM)  to introduce a mean-field view (intri
 nsic state) for studying the evolution of the nuclear deformation in A=100
  region\, focussing on the case of odd-even Nb isotopes. Two complementary
  approaches will be used for studying shape evolution: first\, an algebrai
 c approach employing a laboratory frame of reference\, and secondly\, a ge
 ometric-oriented method within the context of an intrinsic state formalism
 . The objective is to compare the onset of deformation in Nb isotopes with
  the even-even cases\, such as Sr and Zr\, extracting information from the
  intrinsic state\, but also from spectroscopic properties.\nTo conclude\, 
 by applying the IBFM-CM framework and employing both algebraic and geometr
 ic approaches\, this contribution aims at providing insights into the evol
 ution of nuclear shapes in even-even and odd-even nuclei in the mass regio
 n around A=100.\n\n[1] K. Heyde and J. L. Wood\,  Rev. Mod. Phys. 83\, 146
 7 (2011).\n[2] J.E. García-Ramos and K. Heyde\, Phys. Rev. C 100\, 044315
  (2019).\n[3] N. Gavrielov\, A. Leviatan\, and F. Iachello\, Phys. Rev. C 
 106\, L051304 (2022).\n[4] E. Maya-Barbecho and J.E. García-Ramos\, Phys.
  Rev. C 105\, 034341 (2022).\n[5] E. Maya-Barbecho\, S. Baid\, J.M. Arias\
 , and J.E. García-Ramos\, Phys. Rev. C 108\, 034316 (2023).\n[6] F. Iache
 llo and P. Van Isacker\, The interacting boson-fermion model (Cambridge Un
 iversity Press\, Cambridge\, 1991).\n\nhttps://indico.ific.uv.es/event/766
 4/contributions/25463/
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URL:https://indico.ific.uv.es/event/7664/contributions/25463/
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