Publication
Title
Search for heavy long-lived particles that decay to photons at CDF II
Author
Institution/Organisation
CDF Collaboration
Abstract
We present the first search for heavy, long-lived particles that decay to photons at a hadron collider. We use a sample of γ+jet+missing transverse energy events in pp̅ collisions at √s=1.96  TeV taken with the CDF II detector. Candidate events are selected based on the arrival time of the photon at the detector. Using an integrated luminosity of 570  pb-1 of collision data, we observe 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 in a supersymmetric model with χ10→γG 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 letters. - New York, N.Y.
Publication
New York, N.Y. : 2007
ISSN
0031-9007
Volume/pages
99:12(2007), p. 121801,1-121801,7
ISI
000249668000020
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 18.03.2010
Last edited 27.07.2017
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