EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES

Hadron jets produced in e+e- annihilation between 13 GeV and 31.6 GeV in c.m. at PETRA are analyzed. The transverse momentum of the jets is found to increase strongly with c.m. energy. The broadening of the jets is not uniform in azimuthal angle around the quark direction but tends to yield planar e...

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Main Authors: Brandelik, R, Braunschweig, W, Gather, K, Kadansky, V, Lubelsmeyer, K, Mattig, P, Martyn, H, Peise, G, Rimkus, J, Sander, H, Schmitz, D, Schultzvondratzig, A, Trines, D, Wallraff, W, Boerner, H, Fischer, H, Hartmann, H, Hilger, E, Hillen, W, Knop, G, Korbach, W, Leu, P, Lohr, B, Roth, F, Ruhmer, W
Format: Journal article
Language:English
Published: 1979
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author Brandelik, R
Braunschweig, W
Gather, K
Kadansky, V
Lubelsmeyer, K
Mattig, P
Martyn, H
Peise, G
Rimkus, J
Sander, H
Schmitz, D
Schultzvondratzig, A
Trines, D
Wallraff, W
Boerner, H
Fischer, H
Hartmann, H
Hilger, E
Hillen, W
Knop, G
Korbach, W
Leu, P
Lohr, B
Roth, F
Ruhmer, W
author_facet Brandelik, R
Braunschweig, W
Gather, K
Kadansky, V
Lubelsmeyer, K
Mattig, P
Martyn, H
Peise, G
Rimkus, J
Sander, H
Schmitz, D
Schultzvondratzig, A
Trines, D
Wallraff, W
Boerner, H
Fischer, H
Hartmann, H
Hilger, E
Hillen, W
Knop, G
Korbach, W
Leu, P
Lohr, B
Roth, F
Ruhmer, W
author_sort Brandelik, R
collection OXFORD
description Hadron jets produced in e+e- annihilation between 13 GeV and 31.6 GeV in c.m. at PETRA are analyzed. The transverse momentum of the jets is found to increase strongly with c.m. energy. The broadening of the jets is not uniform in azimuthal angle around the quark direction but tends to yield planar events with large and growing transverse momenta in the plane and smaller transverse momenta normal to the plane. The simple qq collinear jet picture is ruled out. The observation of planar events shows that there are three basic particles in the final state. Indeed, several events with three well-separated jets of hadrons are observed at the highest energies. This occurs naturally when the outgoing quark radiates a hard noncollinear gluon, i.e., e+e- → qqg with the quarks and the gluons fragmenting into hadrons with limited transverse momenta. © 1979.
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spelling oxford-uuid:3efef719-6e4a-4069-865f-9138307081f92022-03-26T14:29:15ZEVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIESJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3efef719-6e4a-4069-865f-9138307081f9EnglishSymplectic Elements at Oxford1979Brandelik, RBraunschweig, WGather, KKadansky, VLubelsmeyer, KMattig, PMartyn, HPeise, GRimkus, JSander, HSchmitz, DSchultzvondratzig, ATrines, DWallraff, WBoerner, HFischer, HHartmann, HHilger, EHillen, WKnop, GKorbach, WLeu, PLohr, BRoth, FRuhmer, WHadron jets produced in e+e- annihilation between 13 GeV and 31.6 GeV in c.m. at PETRA are analyzed. The transverse momentum of the jets is found to increase strongly with c.m. energy. The broadening of the jets is not uniform in azimuthal angle around the quark direction but tends to yield planar events with large and growing transverse momenta in the plane and smaller transverse momenta normal to the plane. The simple qq collinear jet picture is ruled out. The observation of planar events shows that there are three basic particles in the final state. Indeed, several events with three well-separated jets of hadrons are observed at the highest energies. This occurs naturally when the outgoing quark radiates a hard noncollinear gluon, i.e., e+e- → qqg with the quarks and the gluons fragmenting into hadrons with limited transverse momenta. © 1979.
spellingShingle Brandelik, R
Braunschweig, W
Gather, K
Kadansky, V
Lubelsmeyer, K
Mattig, P
Martyn, H
Peise, G
Rimkus, J
Sander, H
Schmitz, D
Schultzvondratzig, A
Trines, D
Wallraff, W
Boerner, H
Fischer, H
Hartmann, H
Hilger, E
Hillen, W
Knop, G
Korbach, W
Leu, P
Lohr, B
Roth, F
Ruhmer, W
EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title_full EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title_fullStr EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title_full_unstemmed EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title_short EVIDENCE FOR PLANAR EVENTS IN E+E- ANNIHILATION AT HIGH-ENERGIES
title_sort evidence for planar events in e e annihilation at high energies
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