W physics at the ILC with polarized beams as a probe of the Littlest Higgs Model

Details W physics at the ILC with polarized beams as a probe of the Littlest Higgs Model W physics at the ILC with polarized beams as a probe of the Littlest Higgs Model

2009-09-29

arxiv.org/abs/0909.5323v2

JHEP 0911:058,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, plain latex, 6 figures, replaced with version accepted by JHEP, typographical errors removed, notation and reference

Scientific paper

10.1088/1126-6708/2009/11/058

We study the possibility of using W pair production and leptonic decay of one of the W's at the ILC with polarized beams as a probe of the Littlest Higgs Model. We consider cross-sections, polarization fractions of the W's, leptonic decay energy and angular distributions, and left-right polarization asymmetry as probes of the model. With parameter values allowed by present experimental constraints detectable effects on these observables at typical ILC energies of 500 GeV and 800 GeV will be present. Beam polarization is further found to enhance the sensitivity.

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