Measurement of the alpha asymmetry parameter for the Omega- ---> Lambda K- decay - INSPIRE

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Measurement of the alpha asymmetry parameter for the Omega- ---> Lambda K- decay

HyperCP

Collaboration

•

Y.C. Chen
(
- Taiwan, Inst. Phys.
)

Feb, 2005

5 pages

Published in:

Phys.Rev.D 71 (2005) 051102

e-Print:

hep-ex/0502043 [hep-ex]

DOI:

10.1103/PhysRevD.71.051102

PDG:

\alpha\mathrm {({{\mathit \Omega}^{-}})}

\alpha _{−}({{\mathit \Lambda}}) FOR

{{\mathit \Omega}^{-}}

\rightarrow

{{\mathit \Lambda}}{{\mathit K}^{-}}

Report number:

FERMILAB-PUB-05-026-E

Experiments:

FNAL-E-0871

View in:

reference search15 citations

Citations per year

Abstract:

We have measured the alpha parameter of the Omega- to Lambda K- decay using data collected with the HyperCP spectrometer during the 1997 fixed-target run at Fermilab. Analyzing a sample of 0.96 million Omega- to Lambda K^-, Lambda to p pi- decays, we obtain alpha_Omega*alpha_Lambda = [1.33+/-0.33(stat)+/-0.52(syst)] x 10^{-2}. With the accepted value of alpha_Lambda, alpha_Omega is found to be [2.07+/-0.51(stat)+/-0.81(syst)] x 10^{-2}.

11.30.Er
13.30.Eg
14.20.Jn
p nucleus: interaction
tungsten
Omega-: hadroproduction
Omega-: hadronic decay
decay: amplitude analysis
decay: asymmetry
parametrization

References(12)

Figures(0)

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