Measurement of the {alpha} asymmetry parameter for the {omega}{sup -}{yields}{lambda}K{sup -} Decay

Journal Article · Tue Mar 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.051102· OSTI ID:20706073

Chen, Y C; Chan, A; Ho, C; Teng, P K ^[1]; Burnstein, R A; Chakravorty, A; Kaplan, D M; Lederman, L M; Luebke, W; Rajaram, D; Rubin, H A; White, C G; White, S L ^[2]; Choong, W S; Luk, K B ^[3]; Clark, K; Jenkins, C M ^[4]; Dukes, E C; Durandet, C; Holmstrom, T ^[5]

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1. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China)
2. Illinois Institute of Technology, Chicago, Illinois 60616 (United States)
3. University of California, Berkeley, California 94720 (United States)
4. University of South Alabama, Mobile, Alabama 36688 (United States)
5. University of Virginia, Charlottesville, Virginia 22904 (United States); and others

We have measured the {alpha} parameter of the {omega}{sup -}{yields}{lambda}K{sup -} decay using data collected with the HyperCP spectrometer during the 1997 fixed-target run at Fermilab. Analyzing a sample of 0.96x10{sup 6} {omega}{sup -}{yields}{lambda}K{sup -}, {lambda}{yields}p{pi}{sup -} decays, we obtain {alpha}{sub {omega}}{alpha}{sub {lambda}}=[1.33{+-}0.33(stat){+-}0.52(syst)]x10{sup -2}. With the accepted value of {alpha}{sub {lambda}}, {alpha}{sub {omega}} is found to be [2.07{+-}0.51(stat){+-}0.81(syst)]x10{sup -2}.

• OSTI ID: 20706073
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 5; Other Information: DOI: 10.1103/PhysRevD.71.051102; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
CP INVARIANCE
FERMILAB
HADRONIC PARTICLE DECAY
KAONS MINUS
LAMBDA BARYONS
MULTIPARTICLE SPECTROMETERS
OMEGA MINUS PARTICLES
PIONS
PROTONS