Model-independent search for the Abelian Z' boson in the Bhabha process

Details Model-independent search for the Abelian Z' boson in the Bhabha process Model-independent search for the Abelian Z' boson in the Bhabha process

2004-08-05

arxiv.org/abs/hep-ph/0408076v2

Phys.Rev. D70 (2004) 115010

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 5 figures, uses RevTeX4. The text of the paper is completely rewritten

Scientific paper

10.1103/PhysRevD.70.115010

Model-independent observables to pick out the Abelian Z' signal in the Bhabha process are introduced at energies >= 200 GeV. They measure separately the Z'-induced vector and axial-vector four-fermion contact couplings. The analysis of the LEP2 data constrains the value of the Z'-induced vector four-fermion coupling at the 2-sigma confidence level that corresponds to the Abelian Z' boson with the mass of order 1 TeV.

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