Shadow Higgs boson from a scaleinvariant hidden U(1){sub s} model
Abstract
We study a scaleinvariant SU(2)xU(1){sub Y}xU(1){sub s} model which has only dimensionless couplings. The shadow U(1){sub s} is hidden, and it interacts with the standard model (SM) solely through mixing in the scalar sector and kinetic mixing of the U(1) gauge bosons. The gauge symmetries are broken radiatively by the ColemanWeinberg mechanism. Lifting of the flat direction in the scalar potential gives rise to a light scalar, the scalon, or the shadow Higgs, and a heavier scalar which we identify as the SM Higgs boson. The phenomenology of this model is discussed. In particular, the constraints on the shadow Higgs in different mass ranges, and the possibility of discovering a shadow Higgs with a mass a few tens of GeV in precision tquark studies at the LHC, are investigated.
 Authors:
 Department of Physics, National TsingHua University, Hsinchu 300, Taiwan (China)
 (Canada)
 Publication Date:
 OSTI Identifier:
 20929578
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevD.75.115016; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CERN LHC; GAUGE INVARIANCE; GEV RANGE 10100; HIGGS BOSONS; HIGGS MODEL; MASS; STANDARD MODEL; SU2 GROUPS; T QUARKS; U1 GROUPS
Citation Formats
Chang, W.F., Ng, John N., Wu, Jackson M. S., and Theory group, TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C.. Shadow Higgs boson from a scaleinvariant hidden U(1){sub s} model. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.115016.
Chang, W.F., Ng, John N., Wu, Jackson M. S., & Theory group, TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C.. Shadow Higgs boson from a scaleinvariant hidden U(1){sub s} model. United States. doi:10.1103/PHYSREVD.75.115016.
Chang, W.F., Ng, John N., Wu, Jackson M. S., and Theory group, TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C.. Fri .
"Shadow Higgs boson from a scaleinvariant hidden U(1){sub s} model". United States.
doi:10.1103/PHYSREVD.75.115016.
@article{osti_20929578,
title = {Shadow Higgs boson from a scaleinvariant hidden U(1){sub s} model},
author = {Chang, W.F. and Ng, John N. and Wu, Jackson M. S. and Theory group, TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C.},
abstractNote = {We study a scaleinvariant SU(2)xU(1){sub Y}xU(1){sub s} model which has only dimensionless couplings. The shadow U(1){sub s} is hidden, and it interacts with the standard model (SM) solely through mixing in the scalar sector and kinetic mixing of the U(1) gauge bosons. The gauge symmetries are broken radiatively by the ColemanWeinberg mechanism. Lifting of the flat direction in the scalar potential gives rise to a light scalar, the scalon, or the shadow Higgs, and a heavier scalar which we identify as the SM Higgs boson. The phenomenology of this model is discussed. In particular, the constraints on the shadow Higgs in different mass ranges, and the possibility of discovering a shadow Higgs with a mass a few tens of GeV in precision tquark studies at the LHC, are investigated.},
doi = {10.1103/PHYSREVD.75.115016},
journal = {Physical Review. D, Particles Fields},
number = 11,
volume = 75,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}

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