Invisible $Z\prime$ as a probe of extra dimensions at the CERN LHC

Details Invisible $Z\prime$ as a probe of extra dimensions at the CERN LHC Invisible $Z\prime$ as a probe of extra dimensions at the CERN LHC

2008-11-06

arxiv.org/abs/0811.0974v1

Phys.Rev.D78:097701,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures, to appear in PRD

Scientific paper

10.1103/PhysRevD.78.097701

A class of extra dimensional models with a warped metric predict tunneling of a massive particle localized on our brane and escaping into additional dimensions. The experimental signature of this effect is the disappearance of the particle from our world, i.e. the particle $\to invisible$ decay. We point out that measurements of $Z\prime \to invisible$ decay width of a new heavy gauge boson $Z\prime$ at the CERN LHC can be effectively used to probe the existence of large extra dimensions. This result enhances motivations for a more sensitive search and study for this decay mode and suggests additional direction for testing extra dimensions in collider experiments.

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