PROBING STRONGLY INTERACTING ELECTROWEAK DYNAMICS THROUGH W-(W)ZZ RATIOS AT FUTURE E(+)E(-) COLLIDERS/

Citation
V. Barger et al., PROBING STRONGLY INTERACTING ELECTROWEAK DYNAMICS THROUGH W-(W)ZZ RATIOS AT FUTURE E(+)E(-) COLLIDERS/, Physical review. D. Particles and fields, 52(7), 1995, pp. 3815-3825
Citations number
46
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
52
Issue
7
Year of publication
1995
Pages
3815 - 3825
Database
ISI
SICI code
0556-2821(1995)52:7<3815:PSIEDT>2.0.ZU;2-6
Abstract
We point out that the ratio of W+W- --> W+W- and W+W- --> ZZ cross sec tions is a sensitive probe of the dynamics of electroweak symmetry bre aking, in the c.m. energy region root S-WW greater than or similar to 1 TeV where vector boson scattering may well become strong. We suggest ways in which this ratio can be extracted at a 1.5 TeV e(+)e(-) linea r collider, using W-+/-,Z. --> jj hadronic decays and relying on dijet mass resolution to provide statistical discrimination between W-+/- a nd Z. WW fusion processes studied here are unique for exploring scalar resonances of mass of about 1 TeV and are complementary to studies vi a the direct channel e(+)e(-) --> W+W- for the vector and nonresonant cases. With an integrated luminosity of 200 fb(-1), the signals obtain ed are statistically significant. A comparison with a study of the e(- )e(-) --> nu nu W-W- process is made. Enhancements of the signal rate from using a polarized electron beam, or at a 2 TeV e(+)e(-) linear co llider and possible higher energy mu(+)mu(-) colliders, are also prese nted.