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Title: Collider signatures of the SO(5)xU(1) gauge-Higgs unification

Abstract

Collider signatures of the SO(5)xU(1) gauge-Higgs unification model in the Randall-Sundrum warped space are explored. Gauge couplings of quarks and leptons receive small corrections from the fifth dimension whose effects are tested by the precision data. It is found that the forward-backward asymmetries in e{sup +}e{sup -} collisions on the Z pole are well explained in a wide range of the warp factor z{sub L}, but the model is consistent with the branching fractions of Z decay only for large z{sub L} > or approx. 10{sup 15}. Kaluza-Klein (KK) spectra of gauge bosons, quarks, and leptons as well as gauge and Higgs couplings of low-lying KK excited states are determined. Right-handed quarks and leptons have larger couplings to the KK gauge bosons than left-handed ones. Production rates of Higgs bosons and KK states at the Tevatron, LHC, and International Linear Collider are evaluated. The first KK Z has a mass 1130 GeV with a width 422 GeV for z{sub L}=10{sup 15}. The current limit on the Z' production at the Tevatron and LHC indicates z{sub L}>10{sup 15}. A large effect of parity violation appears in the difference between the rapidity distributions of e{sup +} and e{sup -} in the decaymore » of the first KK Z. The first KK gauge bosons decay into light and heavy quarks evenly.« less

Authors:
; ;  [1]
  1. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
Publication Date:
OSTI Identifier:
21607817
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 84; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.84.075014; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BRANCHING RATIO; CERN LHC; ELECTRON-POSITRON COLLISIONS; EXCITED STATES; FERMILAB TEVATRON; GAUGE INVARIANCE; HIGGS BOSONS; HIGGS MODEL; KALUZA-KLEIN THEORY; MASS; PARTICLE DECAY; PARTICLE RAPIDITY; POSITRONS; QUARKS; SO-5 GROUPS; SPECTRA; TEV RANGE 01-10; U-1 GROUPS; ACCELERATORS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; COLLISIONS; CYCLIC ACCELERATORS; DECAY; DIMENSIONLESS NUMBERS; ELECTRON COLLISIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; FERMIONS; FIELD THEORIES; INVARIANCE PRINCIPLES; LEPTONS; LIE GROUPS; MATHEMATICAL MODELS; MATTER; PARTICLE MODELS; PARTICLE PROPERTIES; POSITRON COLLISIONS; POSTULATED PARTICLES; SO GROUPS; STORAGE RINGS; SYMMETRY GROUPS; SYNCHROTRONS; TEV RANGE; U GROUPS; UNIFIED-FIELD THEORIES

Citation Formats

Hosotani, Yutaka, Tanaka, Minoru, and Uekusa, Nobuhiro. Collider signatures of the SO(5)xU(1) gauge-Higgs unification. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.84.075014.
Hosotani, Yutaka, Tanaka, Minoru, & Uekusa, Nobuhiro. Collider signatures of the SO(5)xU(1) gauge-Higgs unification. United States. doi:10.1103/PHYSREVD.84.075014.
Hosotani, Yutaka, Tanaka, Minoru, and Uekusa, Nobuhiro. Sat . "Collider signatures of the SO(5)xU(1) gauge-Higgs unification". United States. doi:10.1103/PHYSREVD.84.075014.
@article{osti_21607817,
title = {Collider signatures of the SO(5)xU(1) gauge-Higgs unification},
author = {Hosotani, Yutaka and Tanaka, Minoru and Uekusa, Nobuhiro},
abstractNote = {Collider signatures of the SO(5)xU(1) gauge-Higgs unification model in the Randall-Sundrum warped space are explored. Gauge couplings of quarks and leptons receive small corrections from the fifth dimension whose effects are tested by the precision data. It is found that the forward-backward asymmetries in e{sup +}e{sup -} collisions on the Z pole are well explained in a wide range of the warp factor z{sub L}, but the model is consistent with the branching fractions of Z decay only for large z{sub L} > or approx. 10{sup 15}. Kaluza-Klein (KK) spectra of gauge bosons, quarks, and leptons as well as gauge and Higgs couplings of low-lying KK excited states are determined. Right-handed quarks and leptons have larger couplings to the KK gauge bosons than left-handed ones. Production rates of Higgs bosons and KK states at the Tevatron, LHC, and International Linear Collider are evaluated. The first KK Z has a mass 1130 GeV with a width 422 GeV for z{sub L}=10{sup 15}. The current limit on the Z' production at the Tevatron and LHC indicates z{sub L}>10{sup 15}. A large effect of parity violation appears in the difference between the rapidity distributions of e{sup +} and e{sup -} in the decay of the first KK Z. The first KK gauge bosons decay into light and heavy quarks evenly.},
doi = {10.1103/PHYSREVD.84.075014},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 84,
place = {United States},
year = {2011},
month = {10}
}