Radiative corrections to W , Z masses and constraints on new Z bosons

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.42.152· OSTI ID:6686633

Barger, V; Hewett, J L ^[1]; Rizzo, T G ^[2]

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1. Physics Department, University of Wisconsin, Madison, WI (USA)
2. Physics Department, University of Wisconsin, Madison, WI (USA) Ames Laboratory and Physics Department, Iowa State University, Ames, IA (USA)

We explore the implications of the recent {ital W}- and {ital Z}-boson-mass measurements at the SLAC Linear Collider, CERN LEP, and Fermilab Tevatron, and also the {mu} pair and total hadronic cross sections measured at KEK TRISTAN. A detailed comparison is made between the {ital M}{sub {ital W}} and {ital M}{sub {ital Z}} data and standard-model predictions including radiative corrections. These measurements also constrain extended electroweak gauge models. We place model-dependent upper bounds on the mass of a second neutral gauge boson from {ital M}{sub {ital W}} and {ital M}{sub {ital Z}} data, and set lower bounds on the {ital Z}{prime} mass from direct production searches at the Collider Detector at Fermilab (CDF). We analyze the effects of {ital Z}-{ital Z}{prime} mixing on the {ital Z} width, leptonic branching ratio, and peak cross section at {ital e}{sup +}{ital e}{sup {minus}} colliders. We find that a second {ital Z} cannot account for the increase in total hadronic and decrease in {mu}-pair cross sections observed at KEK TRISTAN and simultaneously satisfy the CDF {ital Z}{prime} search limits.

• DOE Contract Number: AC02-76ER00881
• OSTI ID: 6686633
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 42:1; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATOR FACILITIES
ACCELERATORS
BOSONS
BRANCHING RATIO
CORRECTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
FERMILAB TEVATRON
FERMIONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEP STORAGE RINGS
LEPTON-LEPTON INTERACTIONS
LEPTONS
LINEAR ACCELERATORS
MASS
MATHEMATICAL MODELS
MUONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE MODELS
RADIATIVE CORRECTIONS
STANDARD MODEL
STANFORD LINEAR COLLIDER
STORAGE RINGS
SYNCHROTRONS
TOTAL CROSS SECTIONS
TRISTAN STORAGE RINGS
UNIFIED GAUGE MODELS
W MINUS BOSONS
W PLUS BOSONS
Z NEUTRAL BOSONS