Investigation on the 
Ω(2012)
 from QCD sum rules

Niu Su; Hua-Xing Chen; Philipp Gubler; Atsushi Hosaka

doi:10.1103/physrevd.110.034007

journal article Open Access Aug 07, 2024

Investigation on the Ω(2012) from QCD sum rules

Niu Su

Hua-Xing Chen

Philipp Gubler

Atsushi Hosaka

Physical Review D Vol. 110 No. 3 · American Physical Society (APS)

View at Publisher Save 10.1103/physrevd.110.034007

Abstract

We study the recently observed Ω(2012) baryon in quantum chromodynamics (QCD) sum rules. We construct the P-wave Ω baryon currents with a covariant derivative, and perform spin projection to obtain the currents with total spin 1/2 and 3/2. We then apply the parity-projected QCD sum rules to separate the contributions of the positive and negative parity states. We extract the masses of JP=1/2− and 3/2− states to be M1/2−=2.07−0.07+0.07 GeV and M3/2−=2.05−0.10+0.09 GeV. Both results are in good agreement with the experimental result. Therefore, it is likely that the Ω(2012) is a negative parity state, which is interpreted as a P-wave excited state in the quark model. However, its spin is not determined in the present analysis, which can be done by detailed study on its decay properties.

Published by the American Physical Society
2024

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References

77

[1]

10.1103/physrevlett.109.172003

[2]

10.1103/physrevd.88.071101

[3]

10.1103/physrevlett.118.182001

[4]

10.1103/physrevd.97.051102

[5]

10.1103/physrevlett.124.222001

[6]

10.1103/physrevlett.126.252003

[7]

10.1103/physrevd.104.l091102

[8]

10.1103/physrevlett.131.171901

[9]

10.1103/physrevd.91.092006

[10]

10.1103/physrevlett.121.052003

[11]

10.1103/physrevlett.122.072501

[12]

10.1103/physrevd.100.032006

[13]

10.1103/physrevlett.124.032002

[14]

Evidence of a J / ψ Λ structure and observation of excited Ξ - states in the Ξ b - → J / ψ Λ K - decay

Science Bulletin 10.1016/j.scib.2021.02.030

[15]

10.1103/physrevd.104.052005

[16]

10.1103/physrevd.98.014031

[17]

10.1140/epjc/s10052-018-6375-y

[18]

Ω(2012) through the looking glass of flavour SU(3)

Maxim V. Polyakov, Hyeon-Dong Son, Bao-Dong Sun et al.

Physics Letters B 10.1016/j.physletb.2019.03.054

[19]

10.1103/physrevd.98.114023

[20]

Possible interpretation of the newly observed Ω(2012) state

Li-Ye Xiao, Xian-Hui Zhong

Physical Review D 10.1103/physrevd.98.034004

[21]

10.1103/physrevd.101.016002

[22]

10.1103/physrevd.105.094006

[23]

10.1088/1674-1137/ac78d1

[24]

Toward discovering the excited Ω baryons through nonleptonic weak decays of Ωc

Kai-Lei Wang, Qi-Fang Lü, Ju-Jun Xie et al.

Physical Review D 10.1103/physrevd.107.034015

[25]

Further study of within a chiral quark model*

Hui-Hua Zhong, Ru-Hui Ni, Mu-Yang Chen et al.

Chinese Physics C 10.1088/1674-1137/acc9a2

[26]

10.1103/physrevd.98.056013

[27]

10.1103/physrevd.98.054009

[28]

Coupled channels dynamics in the generation of the $$\Omega (2012)$$ Ω ( 2012 ) resonance

R. Pavao, E. Oset

The European Physical Journal C 10.1140/epjc/s10052-018-6329-4

[29]

10.1103/physrevd.98.076012

[30]

Strong decays of the hadronic molecule Ω * (2012)

Thomas Gutsche, Valery E Lyubovitskij

Journal of Physics G: Nuclear and Particle Physics 10.1088/1361-6471/abcb9f

[31]

10.1103/physrevd.101.094016

[32]

10.1103/physrevd.102.076009

[33]

10.1140/epjc/s10052-020-7944-4

[34]

10.1103/physrevc.103.025202

[35]

Interpretation of the Ωc→π+Ω(2012)→π+(K¯Ξ) relative to Ωc→π+K¯Ξ from the Ω(2012) molecular perspective

Natsumi Ikeno, Wei-Hong Liang, Genaro Toledo et al.

Physical Review D 10.1103/physrevd.106.034022

[36]

10.1103/physrevd.106.054028

[37]

The hidden-charm pentaquark and tetraquark states

Hua-Xing Chen, Wei Chen, Xiang Liu

Physics Reports 10.1016/j.physrep.2016.05.004

[38]

10.1103/revmodphys.90.015004

[39]

10.1103/revmodphys.94.029901

[40]

Exotics: Heavy pentaquarks and tetraquarks

Ahmed Ali, Jens Sören Lange, Sheldon Stone

Progress in Particle and Nuclear Physics 10.1016/j.ppnp.2017.08.003

[41]

10.1103/revmodphys.90.015003

[42]

Pentaquark and Tetraquark States

Yan-Rui Liu, Hua-Xing Chen, Wei Chen et al.

Progress in Particle and Nuclear Physics 10.1016/j.ppnp.2019.04.003

[43]

10.1016/j.ppnp.2020.103757

[44]

An updated review of the new hadron states

Hua-Xing Chen, Wei Chen, Xiang Liu et al.

Reports on Progress in Physics 10.1088/1361-6633/aca3b6

[45]

10.1103/physrevd.107.014025

[46]

10.1016/0550-3213(81)90259-5

[47]

10.1016/0550-3213(81)90315-1

[48]

10.1103/physrevd.53.5115

[49]

10.1103/physrevd.51.6383

[50]

10.1007/bf01571709

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Citations

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References

Details

Published: Aug 07, 2024
Vol/Issue: 110(3)
License: View

Authors

N

Niu Su

Research Center for Nuclear Physics (RCNP), Osaka University; Southeast University

Southeast University

Japan Atomic Energy Agency (JAEA)

A

Atsushi Hosaka

Research Center for Nuclear Physics (RCNP), Osaka University; Japan Atomic Energy Agency (JAEA)

Funding

National Natural Science Foundation of China Award: 12075019

Japan Society for the Promotion of Science Award: JP22H00122

Fundamental Research Funds for the Central Universities

China Scholarship Council Award: 202306090272

Jiangsu Provincial Double-Innovation Program Award: JSSCRC2021488

Cite This Article

Niu Su, Hua-Xing Chen, Philipp Gubler, et al. (2024). Investigation on the Ω(2012) from QCD sum rules. Physical Review D, 110(3). https://doi.org/10.1103/physrevd.110.034007

Investigation on the Ω(2012) from QCD sum rules

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