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Particle-hole excitations in the interacting boson model (I) : general structure and symmetries

(1996) NUCLEAR PHYSICS A. 600(2). p.251-271
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Abstract
A version of the interacting boson model (IBM) is introduced that includes particle-like and hole-like bosons and allows the description of excitations across closed shells. The formal, algebraic aspects of the model are worked out in detail, Reduction of the dynamical algebra U-p(6) x U-h(6) leads to the definition of intruder or I spin which labels the character of the bosons (particle-like or hole-like). The I-spin properties of the Hamiltonian and electromagnetic transition operators are discussed. Embedding of U-p(6) x U-h(6) into a larger dynamical algebra gives rise to multiplets that connect either states in different nuclei with the same I spin [U(12)], or states that differ by two particles and two holes [U(6,6)],or states that differ by four particles or four holes [Sp(12)].
Keywords
particle-hole excitations, intruder states, (dynamical) symmetry, multiplet, I spin, K spin, HIGH-SPIN STATES, INTRUDER STATES, MASS NUCLEI, CD-114, COEXISTENCE, ISOTOPES, BANDS, CD

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Chicago
De Coster, Caroline, Kristiaan Heyde, Bruno Decroix, P Van Isacker, J Jolie, H Lehmann, and JL Wood. 1996. “Particle-hole Excitations in the Interacting Boson Model (I) : General Structure and Symmetries.” Nuclear Physics A 600 (2): 251–271.
APA
De Coster, C., Heyde, K., Decroix, B., Van Isacker, P., Jolie, J., Lehmann, H., & Wood, J. (1996). Particle-hole excitations in the interacting boson model (I) : general structure and symmetries. NUCLEAR PHYSICS A, 600(2), 251–271.
Vancouver
1.
De Coster C, Heyde K, Decroix B, Van Isacker P, Jolie J, Lehmann H, et al. Particle-hole excitations in the interacting boson model (I) : general structure and symmetries. NUCLEAR PHYSICS A. 1996;600(2):251–71.
MLA
De Coster, Caroline, Kristiaan Heyde, Bruno Decroix, et al. “Particle-hole Excitations in the Interacting Boson Model (I) : General Structure and Symmetries.” NUCLEAR PHYSICS A 600.2 (1996): 251–271. Print.
@article{269223,
  abstract     = {A version of the interacting boson model (IBM) is introduced that includes particle-like and hole-like bosons and allows the description of excitations across closed shells. The formal, algebraic aspects of the model are worked out in detail, Reduction of the dynamical algebra U-p(6) x U-h(6) leads to the definition of intruder or I spin which labels the character of the bosons (particle-like or hole-like). The I-spin properties of the Hamiltonian and electromagnetic transition operators are discussed. Embedding of U-p(6) x U-h(6) into a larger dynamical algebra gives rise to multiplets that connect either states in different nuclei with the same I spin [U(12)], or states that differ by two particles and two holes [U(6,6)],or states that differ by four particles or four holes [Sp(12)].},
  author       = {De Coster, Caroline and Heyde, Kristiaan and Decroix, Bruno and Van Isacker, P and Jolie, J and Lehmann, H and Wood, JL},
  issn         = {0375-9474},
  journal      = {NUCLEAR PHYSICS A},
  keyword      = {particle-hole excitations,intruder states,(dynamical) symmetry,multiplet,I spin,K spin,HIGH-SPIN STATES,INTRUDER STATES,MASS NUCLEI,CD-114,COEXISTENCE,ISOTOPES,BANDS,CD},
  language     = {eng},
  number       = {2},
  pages        = {251--271},
  title        = {Particle-hole excitations in the interacting boson model (I) : general structure and symmetries},
  url          = {http://dx.doi.org/10.1016/0375-9474(96)00019-X},
  volume       = {600},
  year         = {1996},
}

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