Observation of an excited Baryon

Yelton, J.*; Tanida, Kiyoshi ; Belle Collaboration*; 190 of others*

Using data recorded with the Belle detector, we observe a new excited hyperon, an $Omega^{*-}$ candidate decaying into and with a mass of $2012.4pm0.7 {rm (stat)pm 0.6 (rm syst)} {rm MeV}/c^2$ and a width of $Gamma=6.4^{+2.5}_{-2.0} {rm(stat)}pm1.6 {rm(syst)} {rm MeV}$ . The $Omega^{*-}$ is seen primarily in , and decays.

Language	:	English
Journal	:	Physical Review Letters
Volume	:	121
Number	:	5
Pages	:	p.052003_1 - 052003_7
Publication Year/Month	:	2018/08
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PDF	:	AA2018-0593.pdf:0.37MB
Paper URL	:	https://doi.org/10.1103/PhysRevLett.121.052003
DOI for research data	:
Keywords	:	ハドロン分光
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Article of JAEA R&D Review	:
Cooperating Institute	:	高エネルギー加速器研究機構

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Registration No. : AA20180593
JAEA Abstracts No. : 47000431
Paper Submission No. : 21103

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