The University of Southampton
University of Southampton Institutional Repository

WLWL scattering in Higgsless models: Identifying better effective theories

WLWL scattering in Higgsless models: Identifying better effective theories
WLWL scattering in Higgsless models: Identifying better effective theories
The three-site model has been offered as a benchmark for studying the collider phenomenology of Higgsless models. In this paper we analyze how well the three-site model performs as a general exemplar of Higgsless models in describing WLWL scattering, and which modifications can make it more representative. We employ general sum rules relating the masses and couplings of the Kaluza-Klein modes of the gauge fields in continuum and deconstructed Higgsless models as a way to compare the different theories. We show that the size of the four-point vertex for the (unphysical) Nambu-Goldstone modes and the degree to which the sum rules are saturated by contributions from the lowest-lying Kaluza-Klein resonances both provide good measures of the extent to which a highly deconstructed theory can accurately describe the low-energy physics of a continuum 5D Higgsless model. After comparing the three-site model to flat and warped continuum models, we analyze extensions of the three-site model to a longer open linear moose with an additional U(1) group and to a ring ("breaking electroweak symmetry strongly" or "hidden local symmetry") model with three sites and three links. Both cases may be readily analyzed in the framework of the general sum rules. We demonstrate that WLWL scattering in the ring model can very closely approximate scattering in the continuum models, provided that the hidden local symmetry parameter a is chosen to mimic p-meson dominance of ?? scattering in QCD. The hadron and lepton collider phenomenology of both extended models is briefly discussed, with a focus on the complementary information to be gained from precision measurements of the Z' line shape and ZWW coupling at a high-energy lepton collider.
1550-7998
55022
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Chivukula, R.
6c8dd8f2-b702-407e-a3a0-96f79869afb0
Christensen, Neil
e1cd9bac-3cb9-4b03-adb6-55126652698f
He, Hong-Jian
c79c1375-6972-4412-9556-8960bdf32f3d
Kurachi, Masafumi
d53cbfd6-116b-4aa9-9d68-179d2c445693
Simmons, Elizabeth
8529c1bf-56b8-448a-9afc-c37bfca81ebc
Tanabashi, Masaharu
f50e99c0-8250-4ece-ab03-987e6d39c57e
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Chivukula, R.
6c8dd8f2-b702-407e-a3a0-96f79869afb0
Christensen, Neil
e1cd9bac-3cb9-4b03-adb6-55126652698f
He, Hong-Jian
c79c1375-6972-4412-9556-8960bdf32f3d
Kurachi, Masafumi
d53cbfd6-116b-4aa9-9d68-179d2c445693
Simmons, Elizabeth
8529c1bf-56b8-448a-9afc-c37bfca81ebc
Tanabashi, Masaharu
f50e99c0-8250-4ece-ab03-987e6d39c57e

Belyaev, Alexander, Chivukula, R., Christensen, Neil, He, Hong-Jian, Kurachi, Masafumi, Simmons, Elizabeth and Tanabashi, Masaharu (2009) WLWL scattering in Higgsless models: Identifying better effective theories. Physical Review D, 80 (5), 55022. (doi:10.1103/PhysRevD.80.055022).

Record type: Article

Abstract

The three-site model has been offered as a benchmark for studying the collider phenomenology of Higgsless models. In this paper we analyze how well the three-site model performs as a general exemplar of Higgsless models in describing WLWL scattering, and which modifications can make it more representative. We employ general sum rules relating the masses and couplings of the Kaluza-Klein modes of the gauge fields in continuum and deconstructed Higgsless models as a way to compare the different theories. We show that the size of the four-point vertex for the (unphysical) Nambu-Goldstone modes and the degree to which the sum rules are saturated by contributions from the lowest-lying Kaluza-Klein resonances both provide good measures of the extent to which a highly deconstructed theory can accurately describe the low-energy physics of a continuum 5D Higgsless model. After comparing the three-site model to flat and warped continuum models, we analyze extensions of the three-site model to a longer open linear moose with an additional U(1) group and to a ring ("breaking electroweak symmetry strongly" or "hidden local symmetry") model with three sites and three links. Both cases may be readily analyzed in the framework of the general sum rules. We demonstrate that WLWL scattering in the ring model can very closely approximate scattering in the continuum models, provided that the hidden local symmetry parameter a is chosen to mimic p-meson dominance of ?? scattering in QCD. The hadron and lepton collider phenomenology of both extended models is briefly discussed, with a focus on the complementary information to be gained from precision measurements of the Z' line shape and ZWW coupling at a high-energy lepton collider.

Full text not available from this repository.

More information

Published date: 21 September 2009

Identifiers

Local EPrints ID: 141708
URI: https://eprints.soton.ac.uk/id/eprint/141708
ISSN: 1550-7998
PURE UUID: 73d52d08-0702-4554-82f9-1aa8c2e4dd61
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 21 May 2010 10:41
Last modified: 20 Jul 2019 00:52

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×