Search for new heavy particles decaying to Z{sup 0}Z{sup 0}{yields}eeee in pp collisions at {radical}(s)=1.96 TeV

Journal Article · Tue Jul 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.012008· OSTI ID:21250196

Aaltonen, T; Maki, T; Mehtala, P; Orava, R; Osterberg, K; Saarikko, H; van Remortel, N ^[1]; Adelman, J; Brubaker, E; Fedorko, W T; Grosso-Pilcher, C; Kim, Y K; Kwang, S; Levy, S; Paramonov, A A; Schmidt, M A; Shochet, M; Wolfe, C; Yang, U K; Yorita, K ^[2]

---

1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)

We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z{sup 0} bosons in 1.1 fb{sup -1} of pp collisions at {radical}(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{sup 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}xBF(G{yields}Z{sup 0}Z{sup 0})<4-6 pb, depending on the graviton mass.

• OSTI ID: 21250196
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 1; Other Information: DOI: 10.1103/PhysRevD.78.012008; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
EFFICIENCY
ELECTRONS
FERMILAB
FERMILAB COLLIDER DETECTOR
GEV RANGE 100-1000
GRAVITONS
MASS
PARTICLE DECAY
PROTON-PROTON INTERACTIONS
TEV RANGE 01-10
Z NEUTRAL BOSONS