The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons

We generalize a previous construction of a fermiophobic model to the case of more than one extra $W$ and $Z$ gauge bosons. We focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. One of these configurations allows for the existence...

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Detalles Bibliográficos
Autores principales: Matias, Joaquim, Vicini, Alessandro
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1142/S0217751X00001164
https://dx.doi.org/10.1142/S0217751X00001166
http://cds.cern.ch/record/348353
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author Matias, Joaquim
Vicini, Alessandro
author_facet Matias, Joaquim
Vicini, Alessandro
author_sort Matias, Joaquim
collection CERN
description We generalize a previous construction of a fermiophobic model to the case of more than one extra $W$ and $Z$ gauge bosons. We focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. One of these configurations allows for the existence of a set of relatively light new gauge bosons, without violation of the quite restrictive bounds coming from the $\rho_{\rm NC}$ parameter. The links with Bess and degenerate Bess models are also discussed.
id cern-348353
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3483532023-03-14T17:01:26Zdoi:10.1142/S0217751X00001164doi:10.1142/S0217751X00001166http://cds.cern.ch/record/348353engMatias, JoaquimVicini, AlessandroThe $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosonsParticle Physics - PhenomenologyWe generalize a previous construction of a fermiophobic model to the case of more than one extra $W$ and $Z$ gauge bosons. We focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. One of these configurations allows for the existence of a set of relatively light new gauge bosons, without violation of the quite restrictive bounds coming from the $\rho_{\rm NC}$ parameter. The links with Bess and degenerate Bess models are also discussed.We generalize a previous construction of a fermiophobic model to the case of more than one extra $W$ and $Z$ gauge bosons. We focus in particular on the existence of screening configurations and their implication on the gauge boson mass spectrum. One of these configurations allows for the existence of a set of relatively light new gauge bosons, without violation of the quite restrictive bounds coming from the $\rho_{\rm NC}$ parameter. The links with Bess and degenerate Bess models are also discussed. Also the signal given here by this more traditional gauge extension of the SM could help to disentangle it from the towers of Kaluza-Klein states over $W$ and $Z$ gauge bosons in extra dimensions.hep-ph/9803278DESY-98-022CERN-TH-98-57CERN-TH-98-057DESY-98-022oai:cds.cern.ch:3483531998-03-10
spellingShingle Particle Physics - Phenomenology
Matias, Joaquim
Vicini, Alessandro
The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title_full The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title_fullStr The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title_full_unstemmed The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title_short The $\varrho$ parameter and the Screening Phenomenon for extra W and Z gauge bosons
title_sort $\varrho$ parameter and the screening phenomenon for extra w and z gauge bosons
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1142/S0217751X00001164
https://dx.doi.org/10.1142/S0217751X00001166
http://cds.cern.ch/record/348353
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