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W' production at the LHC in the 4-site Higgsless model

W' production at the LHC in the 4-site Higgsless model
W' production at the LHC in the 4-site Higgsless model
We study the phenomenology of the 4-site Higgsless model, based on the SU(2)_L × SU(2)_1 × SU(2)_2 × U(1)_Y gauge symmetry, at present colliders. The model predicts the existence of two neutral and four charged extra gauge bosons, Z_(1,2) and W±. In this paper, we focus on the charged gauge sector. We first derive limits on W1,2-boson masses and couplings to SM fermions from direct searches at the Tevatron. We then estimate at the 7 TeV LHC the exclusion limits with the actual L=1 fb?1 and the discovery potential with the expected L=10 fb?1. In contrast to the minimal (or 3-site) Higgsless model which predicts almost fermiophobic extra gauge bosons, the next-to-minimal (or 4-site) Higgsless model recovers sizeable W_(1,2)-boson couplings to ordinary matter, expressing the non-fermiophobic multiresonance inner nature of extra-dimensional theories. Owing to this feature, we find that in one year from now the new heavy gauge bosons, W± , could be discovered in the final state with an electron and large missing transverse energy at the 7 TeV LHC for W1,2-boson masses in the TeV region, depending on model parameters
1550-7998
115014
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Becciolini, Diego
7a139b0e-a41b-4d6c-b22b-ac19c20c0050
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
Becciolini, Diego
7a139b0e-a41b-4d6c-b22b-ac19c20c0050
De Curtis, Stefania
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Dominici, Daniele
aca95683-a4dd-4521-ab76-e132b61c6c58
Fedeli, Luca
1ddd6a40-9ad1-4453-9eda-b2122d20878b

Accomando, Elena, Becciolini, Diego, De Curtis, Stefania, Dominici, Daniele and Fedeli, Luca (2011) W' production at the LHC in the 4-site Higgsless model. Physical Review D, D84, 115014.

Record type: Article

Abstract

We study the phenomenology of the 4-site Higgsless model, based on the SU(2)_L × SU(2)_1 × SU(2)_2 × U(1)_Y gauge symmetry, at present colliders. The model predicts the existence of two neutral and four charged extra gauge bosons, Z_(1,2) and W±. In this paper, we focus on the charged gauge sector. We first derive limits on W1,2-boson masses and couplings to SM fermions from direct searches at the Tevatron. We then estimate at the 7 TeV LHC the exclusion limits with the actual L=1 fb?1 and the discovery potential with the expected L=10 fb?1. In contrast to the minimal (or 3-site) Higgsless model which predicts almost fermiophobic extra gauge bosons, the next-to-minimal (or 4-site) Higgsless model recovers sizeable W_(1,2)-boson couplings to ordinary matter, expressing the non-fermiophobic multiresonance inner nature of extra-dimensional theories. Owing to this feature, we find that in one year from now the new heavy gauge bosons, W± , could be discovered in the final state with an electron and large missing transverse energy at the 7 TeV LHC for W1,2-boson masses in the TeV region, depending on model parameters

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Published date: July 2011
Organisations: Theoretical Partical Physics Group

Identifiers

Local EPrints ID: 339111
URI: http://eprints.soton.ac.uk/id/eprint/339111
ISSN: 1550-7998
PURE UUID: cfbab088-b8d2-41e1-a2d5-33fc169aa084

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Date deposited: 23 May 2012 14:22
Last modified: 27 Jun 2022 17:00

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Contributors

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

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