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Drell-Yan production at the LHC in a four site Higgsless model

Drell-Yan production at the LHC in a four site Higgsless model
Drell-Yan production at the LHC in a four site Higgsless model
We consider a four site Higgsless model based on the SU(2)L × SU(2)1 × SU(2)2 × U(1)Y gauge symmetry, which predicts two neutral and four charged extra gauge bosons, Z1,2 and W±1,2. We compute the properties of the new particles, and derive indirect and direct limits on their masses and couplings from LEP and Tevatron data. In contrast to other Higgsless models, characterized by fermiophobic extra gauge bosons, here sizeable fermion-boson couplings are allowed by the electroweak precision data. The prospects of detecting the new predicted particles in the favoured Drell-Yan channel at the LHC are thus investigated. The outcome is that all six extra gauge bosons could be discovered in the early stage of the LHC low-luminosity run.
1550-7998
055020-[20 pages]
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
De Curtis, Stefania
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Dominici, Daniele
aca95683-a4dd-4521-ab76-e132b61c6c58
Fedeli, Luca
1ddd6a40-9ad1-4453-9eda-b2122d20878b
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
De Curtis, Stefania
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Dominici, Daniele
aca95683-a4dd-4521-ab76-e132b61c6c58
Fedeli, Luca
1ddd6a40-9ad1-4453-9eda-b2122d20878b

Accomando, Elena, De Curtis, Stefania, Dominici, Daniele and Fedeli, Luca (2009) Drell-Yan production at the LHC in a four site Higgsless model. Physical Review D, 79 (5), 055020-[20 pages]. (doi:10.1103/PhysRevD.79.055020).

Record type: Article

Abstract

We consider a four site Higgsless model based on the SU(2)L × SU(2)1 × SU(2)2 × U(1)Y gauge symmetry, which predicts two neutral and four charged extra gauge bosons, Z1,2 and W±1,2. We compute the properties of the new particles, and derive indirect and direct limits on their masses and couplings from LEP and Tevatron data. In contrast to other Higgsless models, characterized by fermiophobic extra gauge bosons, here sizeable fermion-boson couplings are allowed by the electroweak precision data. The prospects of detecting the new predicted particles in the favoured Drell-Yan channel at the LHC are thus investigated. The outcome is that all six extra gauge bosons could be discovered in the early stage of the LHC low-luminosity run.

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Published date: 25 March 2009

Identifiers

Local EPrints ID: 154355
URI: https://eprints.soton.ac.uk/id/eprint/154355
ISSN: 1550-7998
PURE UUID: db266516-4298-437a-b351-bd5b6352a3ad

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Date deposited: 25 May 2010 09:09
Last modified: 30 Jul 2018 16:32

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Contributors

Author: Elena Accomando
Author: Stefania De Curtis
Author: Daniele Dominici
Author: Luca Fedeli

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