$\Omega$ baryon spectrum and their decays in a constituent quark model - INSPIRE

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$\Omega$ baryon spectrum and their decays in a constituent quark model

Ming-Sheng Liu
(
- Hunan Normal U. and
- SICQEA, Changsha and
- Hunan, LDQSQC
)
,
Kai-Lei Wang
(
- SICQEA, Changsha
)
,
Qi-Fang Lü
(
- Hunan Normal U. and
- SICQEA, Changsha and
- Hunan, LDQSQC
)
,
Xian-Hui Zhong
(
- Hunan Normal U. and
- SICQEA, Changsha and
- Hunan, LDQSQC
)

Oct 22, 2019

14 pages

Published in:

Phys.Rev.D 101 (2020) 1, 016002

Published: Jan 3, 2020

e-Print:

1910.10322 [hep-ph]

DOI:

10.1103/PhysRevD.101.016002

View in:

ADS Abstract Service

reference search42 citations

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Abstract: (APS)

Combining the recent developments of the observations of Ω sates we calculate the Ω spectrum up to the N=2 shell within a nonrelativistic constituent quark potential model. Furthermore, the strong and radiative decay properties for the Ω resonances within the N=2 shell are evaluated by using the masses and wave functions obtained from the potential model. It is found that the newly observed Ω(2012) resonance is most likely to be the spin-parity JP=3/2- 1P-wave state Ω(12P3/2-), it also has a large potential to be observed in the Ω(1672)γ channel. Our calculation shows that the 1P-, 1D-, and 2S-wave Ω baryons have a relatively narrow decay width of less than 50 MeV. Based on the obtained decay properties and mass spectrum, we further suggest optimum channels and mass regions to find the missing Ω resonances via the strong and/or radiative decay processes.

Note:

12 pages, 1 figure

Phenomenological aspects of field theory, general methods
hadron spectroscopy
quark model: constituent
quark: potential model
radiative decay
Omega-
nonrelativistic
mass spectrum
wave function

References(59)

Figures(1)

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)
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)
,
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,
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,
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•

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•
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•
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