Published March 1, 2005 | Version v1
Journal article Metadata-only

Measurement of the α asymmetry parameter for the Ω-→ΛK- Decay

Creators

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

Description

We have measured the α parameter of the Ω-→ΛK- decay using data collected with the HyperCP spectrometer during the 1997 fixed-target run at Fermilab. Analyzing a sample of 0.96x106 Ω-→ΛK-, Λ→pπ- decays, we obtain αΩαΛ=[1.33±0.33(stat)±0.52(syst)]x10-2. With the accepted value of αΛ, αΩ is found to be [2.07±0.51(stat)±0.81(syst)]x10-2

Additional details

Identifiers

DOI
10.1103/PhysRevD.71.051102;
arXiv
arXiv:hep-ex/0502043v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
71
Journal Issue
5
Journal Page Range
p. 051102-051102.5
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37021265
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; CP INVARIANCE; FERMILAB; HADRONIC PARTICLE DECAY; KAONS MINUS; LAMBDA BARYONS; MULTIPARTICLE SPECTROMETERS; OMEGA MINUS PARTICLES; PIONS; PROTONS
Descriptors DEC
BARYONS; BOSONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYPERONS; INVARIANCE PRINCIPLES; KAONS; MEASURING INSTRUMENTS; MESONS; NATIONAL ORGANIZATIONS; NUCLEONS; OMEGA BARYONS; OMEGA PARTICLES; PARTICLE DECAY; PSEUDOSCALAR MESONS; SPECTROMETERS; STRANGE MESONS; STRANGE PARTICLES; US DOE; US ORGANIZATIONS

Optional Information

Notes
(c) 2005 The American Physical Society
Collaborations
HyperCP Collaboration