Search for Long-Lived Parents of the Z Boson

Details Search for Long-Lived Parents of the Z Boson Search for Long-Lived Parents of the Z Boson

2004-10-06

arxiv.org/abs/hep-ex/0410019v1

Int.J.Mod.Phys.A20:3263-3266,2005

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings for the American Physical Society's 2004 Meeting of the Division of Particles and Fields

Scientific paper

10.1142/S0217751X05026297

We present the results of a search for new particles with long lifetime that decay to a Z boson. A long-lived parent of the Z is predicted by several models in addition to being an experimentally clean channel. We vertex dimuons with invariant mass near the Z peak and study the decay length distribution. No evidence of a long-lived component is found, and cross-section limits are presented on a fourth generation quark model.

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