Hidden Bottom Pentaquark in the SU(5) Version of the Flavor-Spin Model

Stancu, Floarea

doi:10.1007/s00601-023-01831-y

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Article (Scientific journals)

Hidden Bottom Pentaquark in the SU(5) Version of the Flavor-Spin Model

Stancu, Floarea

2023 • In Few-Body Systems, 64 (3), p. 14

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https://hdl.handle.net/2268/305941

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10.1007/s00601-023-01831-y

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Keywords :

hiddenbottom pentaquarks, positive and negative parity states, flavor spin interaction

Abstract :

[en] We generalize to five distinct flavors the flavor-spin hyperfine interaction introduced previously for four flavors and used in the study of uudcc¯ pentaquark. As a particular case here we study the lowest states of the pentaquark uudbb¯ , of either positive or negative parity, in a constituent quark model with linear confinement and the presently extended hyperfine interaction. The positive parity states have one unit of angular momentum located in the subsystem of four quarks and are described by translationally invariant states of orbital permutation symmetry [31] O which requires the configuration s3p . The negative parity states are described by the configuration s4 of permutation symmetry [4] O . We show that the lowest state has the quantum numbers JP = 1 / 2 + or 3 / 2 + and I = 1/2 and is located below the Σ bB threshold by - 132 MeV. We present a comparison between the spectra of uudcc¯ and uudbb¯ pentaquarks.

Disciplines :

Physics

Author, co-author :

Stancu, Floarea ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO)

Language :

English

Title :

Hidden Bottom Pentaquark in the SU(5) Version of the Flavor-Spin Model

Publication date :

06 July 2023

Journal title :

Few-Body Systems

ISSN :

0177-7963

eISSN :

1432-5411

Publisher :

Springer

Volume :

Issue :

Pages :

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://link.springer.com/content/pdf/10.1007/s00601-023-01831-y.pdf

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique

Funding number :

4.4503.19.

Funding text :

This work has been supported by th Fonds de la Recherche Scientifique—FNRS, Belgium, under the grant number 4.4503.19.

Data Set :

http://arXiv:2210.08853

Available on ORBi :

since 23 August 2023

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