Search for New High Mass Particles Decaying to Lepton Pairs in pbarp Collisions at sqrt(s)=1.96 TeV

Details Search for New High Mass Particles Decaying to Lepton Pairs in pbarp Collisions at sqrt(s)=1.96 TeV Search for New High Mass Particles Decaying to Lepton Pairs in pbarp Collisions at sqrt(s)=1.96 TeV

2005-07-27

arxiv.org/abs/hep-ex/0507104v1

Phys.Rev.Lett.95:252001,2005

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.95.252001

A search for new particles (X) that decay to electron or muon pairs has been performed using approximately 200 pb**(-1) of pbarp collision data at sqrt(s)=1.96 TeV collected by the CDF II experiment at the Fermilab Tevatron. Limits on sigma(ppbar -> X)*BR(X -> ll) are presented as a function of dilepton invariant mass m(ll) > 150 GeV/c**2, for different spin hypotheses (0, 1, or 2). The limits are approximately 25 fb for m(ll) > 600 GeV/c**2. Lower mass bounds for X from representative models beyond the Standard Model including heavy neutral gauge bosons are presented.

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