Published December 4, 1986
| Version v1
Journal article
Asymmetry in the angular distribution of inclusive Λ baryons from e+e- annihilations at √s=29 GeV
Creators
- Abachi, S.1
- Baringer, P.1
- Bylsma, B.G.1
- Debonte, R.1
- Koltick, D.1
- Loeffler, F.J.1
- Low, E.H.1
- McIlwain, R.L.1
- Miller, D.H.1
- Ng, C.R.1
- Rangan, L.K.1
- Shibata, E.I.1
- Derrick, M.2
- Gan, K.K.2
- Kooijman, P.2
- Loos, J.S.2
- Musgrave, B.2
- Price, L.E.2
- Repond, J.2
- Sugano, K.2
- Weiss, J.M.2
- Wood, D.E.2
- Blockus, D.3
- Brabson, B.3
- Brom, J.M.3
- Jung, C.3
- Neal, H.3
- Ogren, H.3
- Rust, D.R.3
- Akerlof, C.4
- Chapman, J.4
- Errede, D.4
- Kesten, P.4
- Meyer, D.I.4
- Nitz, D.4
- Seidl, A.A.4
- Thun, R.4
- Willutzky, M.4
- Cork, B.5
- 1. Purdue Univ., Lafayette, IN (USA)
- 2. Argonne National Lab., IL (USA)
- 3. Indiana Univ., Bloomington (USA)
- 4. Michigan Univ., Ann Arbor (USA)
- 5. Lawrence Berkeley Lab., CA (USA)
Description
A forward-backward asymmetry A, consistent with that expected from the γ-Z0 interference term in the process e+e-→qanti q, is observed in the laboratory production angular distribution of high-momentum Λ baryons. The data were collected with the High Resolution Spectrometer at PEP. The asymmetry for Λ baryons with fractional energy z=2E/√s greater than 0.3 is A=(-23±8±2)%. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 181
- Journal Issue
- 3/4
- Series
- Phys. Lett., B.
- Journal Page Range
- 403-406
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 18025970
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; ANNIHILATION; ANTILAMBDA PARTICLES; ANTIPROTONS; ASYMMETRY; EFFECTIVE MASS; ELECTROMAGNETIC INTERACTIONS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 10-100; INCLUSIVE INTERACTIONS; INTERFERENCE; LAMBDA PARTICLES; MASS SPECTRA; NEUTRAL-CURRENT INTERACTIONS; PAIR PRODUCTION; PIONS MINUS; PIONS PLUS; PROTONS; QUARKS; WEAK HADRONIC DECAY; WEAK INTERACTIONS
- Descriptors DEC
- ANTIBARYONS; ANTIHYPERONS; ANTIMATTER; ANTIMESONS; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BASIC INTERACTIONS; BOSONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; HYPERONS; INFORMATION; INTERACTIONS; IONS; LEPTON-LEPTON INTERACTIONS; MASS; MATTER; MESONS; NUCLEI; NUCLEONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; POSTULATED PARTICLES; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; SPECTRA; STRANGE PARTICLES; WEAK PARTICLE DECAY
Optional Information
- Contract/Grant/Project number
- Contract W-31-109-Eng-38; DE-AC02-76ER01112; DE-AC03-76SF00098; DE-AC02-76ER01428; DE-AC02-84ER40125