Publication
Title
Search for heavy, long-lived neutralinos that decay to photons at CDF II using photon timing
Author
Institution/Organisation
CDF Collaboration
Abstract
We present the results of the first hadron collider search for heavy, long-lived neutralinos that decay via χ10→γG in gauge-mediated supersymmetry breaking models. Using an integrated luminosity of 570±34  pb-1 of pp̅ collisions at √s=1.96  TeV, we select γ+jet+missing transverse energy candidate events based on the arrival time of a high-energy photon at the electromagnetic calorimeter as measured with a timing system that was recently installed on the CDF II detector. We find 2 events, consistent with the background estimate of 1.3±0.7 events. While our search strategy does not rely on model-specific dynamics, we set cross section limits and place the world-best 95% C.L. lower limit on the χ10 mass of 101  GeV/c2 at τχ10=5  ns.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2008
ISSN
0556-2821
Volume/pages
78:3(2008), p. 032015,1-032015,29
ISI
000258975300019
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 16.03.2010
Last edited 21.11.2017
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