Observation of an Excited $\Omega^-$ Baryon - INSPIRE

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Observation of an Excited $\Omega^-$ Baryon

Belle

Collaboration

•

J. Yelton
(
- Florida U.
)

May 23, 2018

7 pages

Published in:

Phys.Rev.Lett. 121 (2018) 5, 052003

Published: Aug 3, 2018

e-Print:

1805.09384 [hep-ex]

DOI:

10.1103/PhysRevLett.121.052003

PDG:

{{\mathit \Omega}{(2012)}^{-}}

\rightarrow

{{\mathit \Xi}^{0}}{{\mathit K}^{-}}

Report number:

BELLE-PREPRINT-2018-09,
KEK-PREPRINT-2018-3,
Belle Preprint 2018-09,
KEK Preprint 2018-3

Experiments:

KEK-BF-BELLE

View in:

reference search72 citations

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Abstract: (APS)

Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω*- candidate decaying into Ξ0K- and Ξ-KS0 with a mass of 2012.4±0.7(stat)±0.6(syst) MeV/c2 and a width of Γ=6.4-2.0+2.5(stat)±1.6(syst) MeV. The Ω*- is seen primarily in ϒ(1S),ϒ(2S), and ϒ(3S) decays.

Note:

Submitted to PRL •
Submitted to Phys.Rev.Lett.

Elementary Particles and Fields
electron positron: annihilation
electron positron: colliding beams
Upsilon(10355): electroproduction
Upsilon(10020): electroproduction
Upsilon(9460): electroproduction
Omega-: excited state
hyperon
baryon: excited state
excited state: hadronic decay

References(19)

Figures(4)

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