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Model independent Z` constraints at future e{sup +}e{sup -} colliders

Abstract

Model independent constraints on the mass of extra neutral gauge bosons and their couplings to charged leptons are given for LEP II and a 500 GeV e{sup +}e{sup -} collider. Analytical exclusion limits are derived in the Born approximation. The Z` limits obtained with radiative corrections are always worse than those calculated at the Born level. Polarized beams are only useful for degrees of polarization essentially larger than 50%. Known discovery limits on extra Z bosons predicted by popular Z` models are reproduced as special cases. The Z` constraints are compared to those predicted by four fermion contact interactions. (orig.)
Authors:
Publication Date:
Nov 01, 1993
Product Type:
Technical Report
Report Number:
DESY-93-154
Reference Number:
SCA: 662310; PA: DEN-94:0F3811; EDB-94:059049; NTS-94:020466; SN: 94001179762
Resource Relation:
Other Information: PBD: Nov 1993
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRON-POSITRON INTERACTIONS; ANNIHILATION; QUANTUM FLAVORDYNAMICS; FERMIONS; GEV RANGE 100-1000; INTERMEDIATE VECTOR BOSONS; TAU PARTICLES; RADIATIVE CORRECTIONS; UNIFIED GAUGE MODELS; FERMI INTERACTIONS; REST MASS; LIMITING VALUES; BORN APPROXIMATION; COUPLING; POLARIZED BEAMS; SPIN ORIENTATION; LAGRANGIAN FIELD THEORY; NEUTRAL-CURRENT INTERACTIONS; INTEGRAL CROSS SECTIONS; ANGULAR DISTRIBUTION; ASYMMETRY; POLARIZATION-ASYMMETRY RATIO; POLARIZED PRODUCTS; NEUTRAL CURRENTS; PAIR PRODUCTION; 662310; WEAK AND ELECTROMAGNETIC INTERACTIONS OF LEPTONS
OSTI ID:
10139875
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). Inst. fuer Hochenergiephysik
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0418-9833; Other: ON: DE94756209; TRN: DE94F3811
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
12 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Leike, A. Model independent Z` constraints at future e{sup +}e{sup -} colliders. Germany: N. p., 1993. Web.
Leike, A. Model independent Z` constraints at future e{sup +}e{sup -} colliders. Germany.
Leike, A. 1993. "Model independent Z` constraints at future e{sup +}e{sup -} colliders." Germany.
@misc{etde_10139875,
title = {Model independent Z` constraints at future e{sup +}e{sup -} colliders}
author = {Leike, A}
abstractNote = {Model independent constraints on the mass of extra neutral gauge bosons and their couplings to charged leptons are given for LEP II and a 500 GeV e{sup +}e{sup -} collider. Analytical exclusion limits are derived in the Born approximation. The Z` limits obtained with radiative corrections are always worse than those calculated at the Born level. Polarized beams are only useful for degrees of polarization essentially larger than 50%. Known discovery limits on extra Z bosons predicted by popular Z` models are reproduced as special cases. The Z` constraints are compared to those predicted by four fermion contact interactions. (orig.)}
place = {Germany}
year = {1993}
month = {Nov}
}