Collider Tests of Compact Space Dimensions Using Weak Gauge Bosons

Details Collider Tests of Compact Space Dimensions Using Weak Gauge Bosons Collider Tests of Compact Space Dimensions Using Weak Gauge Bosons

1999-04-02

arxiv.org/abs/hep-ph/9904220v2

Phys.Rev.Lett. 83 (1999) 2112-2115

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 postscript figure included

Scientific paper

10.1103/PhysRevLett.83.2112

We present collider tests of the recent proposal for weak-scale quantum gravity due to new large compact space dimensions in which only the graviton ($\G$) propagates. We show that the existing high precision LEP-I $Z$-pole data can impose non-trivial constraints on the scale of the new dimensions, via the decay mode $Z\to f\bar{f}+\G$ ($f=q,\ell$). These bounds are comparable to those obtained at high energy colliders and provide the first sensitive probe of the scalar graviton. We also study $W(Z)+\G$ production and the anomalous $WW(ZZ)$ signal from virtual $\G$-states at the Fermilab Tevatron, and compare them with the LEP-I bound and those from LEP-II and future linear colliders.

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