Hadronic molecular assignment for the newly observed $\Omega^*$ state - INSPIRE

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Hadronic molecular assignment for the newly observed $\Omega^*$ state

Yong-Hui Lin
(
- Beijing, KITPC and
- Beijing, GUCAS
)
,
Bing-Song Zou
(
- Beijing, KITPC and
- Beijing, GUCAS and
- Hunan Normal U.
)

Jul 3, 2018

5 pages

Published in:

Phys.Rev.D 98 (2018) 5, 056013

Published: Sep 18, 2018

e-Print:

1807.00997 [hep-ph]

DOI:

10.1103/PhysRevD.98.056013

View in:

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Abstract: (APS)

Very recently, a new Ω* state was reported by the Belle Collaboration, with its mass of 2012.4±0.7(stat)±0.6(syst) MeV, which locates just below the KΞ* threshold and hence hints to be a possible KΞ* hadronic molecule. Using the effective Lagrangian approach as the same as our previous works for other possible hadronic molecular states, we investigate the decay behavior of this new Ω* state within the hadronic molecular picture. The results show that the measured decay width can be reproduced well and its dominant decay channel is predicted to be the KπΞ three-body decay. This suggests that the newly observed Ω* may be ascribed as the JP=3/2- KΞ* hadronic molecular state and can be further checked through its KπΞ decay channel.

Note:

7pages, 6 figures

Phenomenological aspects of field theory, general methods
quarkonium: heavy
hadron: molecule
effective Lagrangian
baryon: decay
baryon resonance
BELLE
numerical calculations

References(30)

Figures(6)

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