We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z0 bosons in 1.1  fb-1 of pp̅ collisions at √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/c2 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 σ×BF(G→Z0Z0)<4–6  pb, depending on the graviton mass.

T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2008). Search for new heavy particles decaying to Z0Z0→eeee in pp̅ collisions at √s=1.96  TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78, 012008-1-012008-11 [10.1103/PhysRevD.78.012008].

Search for new heavy particles decaying to Z0Z0→eeee in pp̅ collisions at √s=1.96  TeV

BRIGLIADORI, LUCA;CASTRO, ANDREA;MOGGI, NICCOLO';ZUCCHELLI, STEFANO
2008

Abstract

We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z0 bosons in 1.1  fb-1 of pp̅ collisions at √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/c2 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 σ×BF(G→Z0Z0)<4–6  pb, depending on the graviton mass.
2008
T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2008). Search for new heavy particles decaying to Z0Z0&#8594;eeee in pp&#773; collisions at &#8730;s=1.96&#8201;&#8201;TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78, 012008-1-012008-11 [10.1103/PhysRevD.78.012008].
T. AALTONEN; B.ALVAREZ GONZALEZV; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J.A. APPEL; A. APRESYAN; T. ARISAWA; A. ART...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/130340
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