We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z(0) bosons in 1.1 fb(-1) of p (p) over bar collisions at root s = 1.96 TeV collected by the CDF II detector at Fermilab. We employ optimized electron identification criteria to maximize acceptance and efficiency. We estimate the backgrounds in the invariant mass range 500-1000 GeV/c(2) to be 0.028 +/- 0.009(stat) +/- 0.011(syst) events. We observe zero events in this search region. Assuming a Randall-Sundrum graviton production model, we set 95% C.L. limits on sigma x BF(G -> Z(0)Z(0)) < 4-6 pb, depending on the graviton mass.

T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2008). Search for new heavy particles decaying to Z(0)Z(0)-> eeee in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 012008-1-012008-11 [10.1103/PhysRevD.78.012008].

Search for new heavy particles decaying to Z(0)Z(0)-> eeee in p(p)over-bar collisions at root s=1.96 TeV

CIOCCI, MARIA AGNESE;
2008-01-01

Abstract

We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z(0) bosons in 1.1 fb(-1) of p (p) over bar collisions at root s = 1.96 TeV collected by the CDF II detector at Fermilab. We employ optimized electron identification criteria to maximize acceptance and efficiency. We estimate the backgrounds in the invariant mass range 500-1000 GeV/c(2) to be 0.028 +/- 0.009(stat) +/- 0.011(syst) events. We observe zero events in this search region. Assuming a Randall-Sundrum graviton production model, we set 95% C.L. limits on sigma x BF(G -> Z(0)Z(0)) < 4-6 pb, depending on the graviton mass.
2008
T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2008). Search for new heavy particles decaying to Z(0)Z(0)-> eeee in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 012008-1-012008-11 [10.1103/PhysRevD.78.012008].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/37546
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