Algebraic Models of Hadron Structure. I. Nonstrange Baryons

Bijker, R.; Iachello, F.; Leviatan, A.

doi:10.1006/aphy.1994.1108

Cited by 343 publications

(480 citation statements)

References 57 publications

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“…In various models and methods, such as the Skyrme model [3], quark model [4][5][6][7][8][9][10][11][12][13], lattice gauge theory [14,15] and so on [16][17][18][19][20][21], the masses of the first orbital excitations of Ωð1672Þ are predicted to be ∼2.0 GeV. Thus, the newly observed Ωð2012Þ may be a good candidate for the first orbital (1P) excitations of Ωð1672Þ.…”

Section: Introductionmentioning

confidence: 99%

Possible interpretation of the newly observed Ω(2012) state

Xiao

Zhong

2018

Phys. Rev. D

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Inspired by the newly observed Ωð2012Þ state at Belle II, we investigate the two-body strong decays of Ω baryons up to N ¼ 2 shell within the chiral quark model. Our results indicate that (i) the newly observed Ωð2012Þ state could be assigned to the spin-parity J P ¼ 3=2 − state j70; 2 10; 1; 1; 3 2 − i and the experimental data can be reasonably described. However, the spin-parity J P ¼ 1=2 − state j70; 2 10; 1; 1; 1 2 − i and spin-parity J P ¼ 3=2 þ state j56; 4 10; 2; 0; 3 2 þ i cannot be completely excluded.(ii) The D-wave states in the N ¼ 2 shell are most likely to be narrow states with a width of dozens of MeV and have a good potential to be observed in the ΞK and/or Ξð1530ÞK channels in future experiments. The Ωð2250Þ resonance listed in PDG may be a good candidate for the J P ¼ 5=2 þ 1D wave state j56; 4 10; 2; 2; 5=2 þ i.

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Section: Introductionmentioning

confidence: 99%

Possible interpretation of the newly observed Ω(2012) state

Xiao

Zhong

2018

Phys. Rev. D

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“…The behavior of observables such as the spectrum and the magnetic moments of hadrons are well reproduced by the constituent quark model (CQM) [16,[54][55][56][57][58][59][60][61][62], but it neglects quark-antiquark pair-creation (or continuum-coupling) effects. The unquenching of the quark model for hadrons is a way to take these components into account.…”

Section: The Unquenched Quark Modelmentioning

confidence: 99%

Diquark Correlations in Baryons: The Interacting Quark Diquark Model

Santopinto¹

2016

Proceedings of the 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015)

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A review of the underlying ideas of the Interacting Quark Diquark Model (IQDM) that asses the baryon spectroscopy in terms of quark diquark degrees of freedom is given, together with a discussion of the missing resonances problem. Some ideas about its generalization the heavy baryon spectroscopy is given.s of freedom is given, together with a discussion of the missing resonances problem. Some ideas about its generalization the heavy baryon spectroscopy is given.The results are compared to the existing experimental data.

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“…The baryon spectrum is computed by means of algebraic methods introduced by Bijker, Iachello and Leviatan [34,35]. The algebraic structure of the model consists in combining the symmetry of the internal spin-flavor-color part, SU sf (6) ⊗ SU c (3), with that of the spatial part, U (7) into…”

Section: U(7) Model For Baryonsmentioning

confidence: 99%

“…The U (7) model was introduced [34] to describe the relative motion of the three constituent parts of the baryon. The general idea is to introduce a so-called spectrum generating algebra U (k + 1) for quantum systems characterized by k degrees of freedom.…”

Section: U(7) Model For Baryonsmentioning

confidence: 99%

“…Recently, we have computed the decay widths of baryon resonances into baryon-pseudoscalar meson pairs [33] within a modified 3 P 0 model, using two different models for the mass spectrum: the U (7) algebraic model [34,35], by Bijker, Iachello and Leviatan, and the hypercentral model (hQM) [36], developed by Giannini and Santopinto. The widths have been computed with harmonic oscillator wave functions.…”

Section: Introductionmentioning

confidence: 99%

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