dc.contributor.advisor | Toback, David | |
dc.creator | Wagner, Peter | |
dc.date.accessioned | 2010-01-15T00:14:53Z | |
dc.date.accessioned | 2010-01-16T02:25:17Z | |
dc.date.available | 2010-01-15T00:14:53Z | |
dc.date.available | 2010-01-16T02:25:17Z | |
dc.date.created | 2007-08 | |
dc.date.issued | 2009-06-02 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1962 | |
dc.description.abstract | This dissertation presents the results of the first search for heavy, neutral, longlived
particles that decay to photons at a hadron collider. We use a sample of
+jet+missing transverse energy events in p¯p collisions at ps = 1.96 TeV taken with
the Collider Detector at Fermilab. Candidate events are selected based on the arrival
time of a high-energy photon at the electromagnetic calorimeter as measured with a
timing system that was recently installed. The final result is that we find 2 events,
using 570±34 pb−1 of data collected during 2004-2005 at the Fermilab Tevatron, consistent
with the background estimate of 1.3±0.7 events. While our search strategy
does not rely on model-specific dynamics, we interpret this result in terms of cross
section limits in a supersymmetric model with e01!
eG and set a world-best e01
mass
reach of 101 GeV/c2 at e = 5 ns. We can exclude any
+jet+missing transverse
energy signal that would produce more than 5.5 events. | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.subject | long-lived | en |
dc.subject | timing | en |
dc.subject | susy | en |
dc.subject | gmsb | en |
dc.subject | cdf | en |
dc.subject | photons | en |
dc.subject | neutralinos | en |
dc.title | Search for heavy, long-lived particles that decay to photons in ppbar collisions at sqrt(s)=1.96 tev | en |
dc.type | Book | en |
dc.type | Thesis | en |
thesis.degree.department | Physics | en |
thesis.degree.discipline | Physics | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Doctor of Philosophy | en |
thesis.degree.level | Doctoral | en |
dc.contributor.committeeMember | Arnowitt, Richard | |
dc.contributor.committeeMember | Kamon, Teruki | |
dc.contributor.committeeMember | Yennello, Sherry | |
dc.type.genre | Electronic Dissertation | en |
dc.type.material | text | en |
dc.format.digitalOrigin | born digital | en |