A measurement of energy correlations and a determination of αs(M sub(Z0)2) in e+e- annihilations at √s=91 GeV
Creators
- Akrawy, M.Z.
- Alexander, G.
- Allison, J.
- Allport, P.P.
- Anderson, K.J.
- Armitage, J.C.
- Arnison, G.T.J.
- Ashton, P.
- Azuelos, G.
- Baines, J.T.M.
- Ball, A.H.
- Banks, J.
- Barker, G.J.
- Barlow, R.J.
- Batley, J.R.
- Beck, A.
- Becker, J.
- Behnke, T.
- Bell, K.W.
- Bella, G.
- Bethke, S.
- Biebel, O.
- Binder, U.
- Bloodworth, I.J.
- Bock, P.
- Breuker, H.
- Brown, R.M.
- Brun, R.
- Buijs, A.
- Burckhart, H.J.
- Capiluppi, P.
- Carnegie, R.K.
- Carter, A.A.
- Carter, J.R.
- Chang, C.Y.
- Charlton, D.G.
- Chrin, J.T.M.
- Clarke, P.E.L.
- Cohen, I.
- Collins, W.J.
- Conboy, J.E.
- Couch, M.
- Coupland, M.
- Cuffiani, M.
- Dado, S.
- Dallavalle, G.M.
- Debu, P.
- Deninno, M.M.
- Dieckmann, A.
- Dittmar, M.
- Dixit, M.S.
- Duchovni, E.
- Duerdoth, I.P.
- Dumas, D.J.P.
- El Mamouni, H.
- Elcombe, P.A.
- Estabrooks, P.G.
- Etzion, E.
- Fabbri, F.
- Farthouat, P.
- Fischer, H.M.
- Fong, D.G.
- French, M.T.
- Fukunaga, C.
- Gaidot, A.
- Ganel, O.
- Gary, J.W.
- Gascon, J.
- Geddes, N.I.
- Gee, C.N.P.
- Geich-Gimbel, C.
- Gensler, S.W.
- Gentit, F.X.
- Giacomelli, G.
- Gibson, V.
- Gibson, W.R.
- Gillies, J.D.
- Goldberg, J.
- Goodrick, M.J.
- Gorn, W.
- Granite, D.
- Gross, E.
- Grunhaus, J.
- Hagedorn, H.
- Hagemann, J.
- Hansroul, M.
- Hargrove, C.K.
- Harrus, I.
- Hart, J.
- Hattersley, P.M.
- Hauschild, M.
- Hawkes, C.M.
- Heflin, E.
- Hemingway, R.J.
- Heuer, R.D.
- Hill, J.C.
- Hillier, S.J.
- Ho, C.
- Hobbs, J.D.
- Hobson, P.R.
- Hochman, D.
- Holl, B.
- Homer, R.J.
- Hou, S.R.
- Howarth, C.P.
- Hughes-Jones, R.E.
- Humbert, R.
- Igo-Kemenes, P.
- Ihssen, H.
- Imrie, D.C.
- Janissen, L.
- Jawahery, A.
- Jeffreys, P.W.
- Jeremie, H.
- Jimack, M.
- Jobes, M.
- Jones, R.W.L.
- Jovanovic, P.
- Karlen, D.
- Kawagoe, K.
- Kawamoto, T.
- Kellogg, R.G.
- Kennedy, B.W.
- Kleinworth, C.
- Klem, D.E.
- Knop, G.
- Kobayashi, T.
- Kokott, T.P.
- Koepke, L.
- Kowalewski, R.
- Kreutzmann, H.
- Kroll, J.
- Kuwano, M.
- Kyberd, P.
- Lafferty, G.D.
- Lamarche, F.
- Larson, W.J.
- Layter, J.G.
- Le Du, P.
- Leblanc, P.
- Lee, A.M.
- Lehto, M.H.
- Lellouch, D.
- Lennert, P.
- Lessard, L.
- Levinson, L.
- Lloyd, S.L.
- Loebinger, F.K.
- Lorah, J.M.
- Lorazo, B.
- Losty, M.J.
- Ludwig, J.
- Ma, J.
- Macbeth, A.A.
- Mannelli, M.
- Marcellini, S.
- Maringer, G.
- Martin, A.J.
- Martin, J.P.
- Mashimo, T.
- Maettig, P.
- Maur, U.
- McMahon, T.J.
- McNutt, J.R.
- Meijers, F.
- Menszner, D.
- Merritt, F.S.
- Mes, H.
- Michelini, A.
- Middleton, R.P.
- Mikenberg, G.
- Mildenberger, J.
- Miller, D.J.
- Milstene, C.
- Minowa, M.
- Mohr, W.
- Montanari, A.
- Mori, T.
- Moss, M.W.
- Murphy, P.G.
- Murray, W.J.
- Nellen, B.
- Nguyen, H.H.
- Nozaki, M.
- O'Dowd, A.J.P.
- O'Neale, S.W.
- O'Neill, B.P.
- Oakham, F.G.
- Odorici, F.
- Ogg, M.
- Oh, H.
- Oreglia, M.J.
- Orito, S.
- Pansart, J.P.
- OPAL Collaboration
Description
From an analysis of multi-hadron events from Z0 decays, values of the strong coupling constant αs(M2Z0) = 0.131±0.006(exp)±0.007(theor.) and αs(M2Z0) = 0.117-0.009+0.007(exp.)-0.002+0.006(theor.) are derived from the energy-energy correlation distribution and its asymmetry, respectively, assuming the QCD renormalization scale μ = MZ0. The theoretical error accounts for differences between O(αs2) calculations. A two parameter fit of ΛMS and the renormalization scale μ leads to ΛMS=216±85 MeV and μ2/s=0.027±0.013 or to αs(M2Z0) = 0.117-0.008+0.006(exp.) for the energy-energy correlation distribution. The energy-energy correlation asymmetry distribution is insensitive to a scale change: thus the αs value quoted above for this variable includes the theoretical uncertainty associated with the renormalization scale. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 252
- Journal Issue
- 1
- Series
- Phys. Lett., B.
- Journal Page Range
- 159-169
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 22030479
- 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 CORRELATION; ANNIHILATION; ASYMMETRY; COUPLING CONSTANTS; ELECTRON-POSITRON INTERACTIONS; ENERGY SPECTRA; EXPERIMENTAL DATA; GEV RANGE 10-100; HADRONS; JET MODEL; MULTIPLE PRODUCTION; NEUTRAL-CURRENT INTERACTIONS; QUANTUM CHROMODYNAMICS; SCALING LAWS; STRONG INTERACTIONS; WEAK HADRONIC DECAY; Z NEUTRAL BOSONS
- Descriptors DEC
- BASIC INTERACTIONS; BOSONS; CORRELATIONS; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FIELD THEORIES; GEV RANGE; INFORMATION; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTON-LEPTON INTERACTIONS; MATHEMATICAL MODELS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY; SPECTRA; WEAK PARTICLE DECAY
Optional Information
- Collaborations
- OPAL Collaboration.