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.
055020-[20 pages]
Accomando, Elena
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De Curtis, Stefania
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Dominici, Daniele
aca95683-a4dd-4521-ab76-e132b61c6c58
Fedeli, Luca
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25 March 2009
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), .
(doi:10.1103/PhysRevD.79.055020).
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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0807.5051v2.pdf
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Published date: 25 March 2009
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Local EPrints ID: 154355
URI: http://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: 14 Mar 2024 01:33
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Author:
Stefania De Curtis
Author:
Daniele Dominici
Author:
Luca Fedeli
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