Measurement of the Spin of the Omega(-) Hyperon
(2006) Measurement of the Spin of the Omega(-) Hyperon. Physical Review Letters, Vol.97 (No.11). Article: 112001. ISSN 0031-9007 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.112001
A measurement of the spin of the Omega(-) hyperon produced through the exclusive process Xi(0)(c)->Omega K--(+) is presented using a total integrated luminosity of 116 fb(-1) recorded with the BABAR detector at the e(+)e(-) asymmetric-energy B factory at SLAC. Under the assumption that the Xi(0)(c) has spin 1/2, the angular distribution of the Lambda from Omega(-)->Lambda K- decay is inconsistent with all half-integer Omega(-) spin values other than 3/2. Lower statistics data for the process Omega(0)(c)->Omega(-)pi(+) from a 230 fb(-1) sample are also found to be consistent with Omega(-) spin 3/2. If the Xi(0)(c) spin were 3/2, an Omega(-) spin of 5/2 could not be excluded.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Physical Review Letters|
|Publisher:||American Physical Society|
|Official Date:||15 September 2006|
|Number of Pages:||7|
|Page Range:||Article: 112001|
|Access rights to Published version:||Restricted or Subscription Access|
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