Beyond the three-site Higgless model
- Los Alamos National Laboratory
- ENGLAND
- MSU
- TSINGHUA UNIV
- NAGOYA UNIV
The three-site model has been offered as a benchmark or test case for studying the collider phenomenology of Higgs-less models. It is therefore appropriate to consider how well the three-site model performs as a general representative of Higgs-less models, and which modifications might remedy any shortcomings. We employ sum rules relating the masses and couplings of the Kaluza-Klein modes of the gauge fields in continuum and deconstructed Higgs-less models as a way to compare the different theories. These identities enable us to quantify how well a given theory performs at unitarizing the scattering of electroweak gauge bosons at a particular energy scale. We will see that the tendency of the sum rules to be saturated by contributions from the lowest-lying KK resonances provides a good measure of the extent to which a highly-deconstructed theory like the three-site model can accurately describe the low-energy physics. After comparing the three-site model to a pair of continuum models, we analyze extensions of the three-site model to a longer open linear model with an additional U(I) group and to a ring model with three sites and three links; both cases can be analyzed in the framework created by the sum rules. The hadron and lepton collider phenomenology of both extended models is discussed, with a focus on the complementary information to be gained from the different facilities.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 956449
- Report Number(s):
- LA-UR-09-01080; LA-UR-09-1080; PRVDAQ; TRN: US1004070
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology; ISSN 1550-7998
- Country of Publication:
- United States
- Language:
- English
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