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Iowa State University

2001

High energy physics

Articles 1 - 2 of 2

Full-Text Articles in Physics

Search For A Neutral Technicolor Signature In Pp̄ Collisions At [Square Root Of S] = 18 Tev , Jesse Andrew Green Jan 2001

Search For A Neutral Technicolor Signature In Pp̄ Collisions At [Square Root Of S] = 18 Tev , Jesse Andrew Green

Retrospective Theses and Dissertations

The standard model (SM) of particle physics has been a very successful theory for decades; however, several features remain unexplained. One such feature is the mechanism of electro-weak symmetry-breaking. The Higgs mechanism is postulated as part of the SM to give us the masses of the W +/- and the Z0 bosons in a manner consistent with unitarity. The Higgs boson is a consequence of the mechanism currently used. It is massive, and has the quantum numbers of the vacuum; i.e. it is a scalar. Also, the pattern of fermion (quark and lepton) masses is yet to be understood. Technicolor ...


Search For An Msugra Signature In The Electron + Jets + [Missing Transverse Energy] Final State In [Proton-Antiproton] Collisions At [Square Root Of S] = 1.8 Tev , Zhang Zhou Jan 2001

Search For An Msugra Signature In The Electron + Jets + [Missing Transverse Energy] Final State In [Proton-Antiproton] Collisions At [Square Root Of S] = 1.8 Tev , Zhang Zhou

Retrospective Theses and Dissertations

We describe a search for a Minimal Supergravity (mSUGRA) signature in Run 1 data taken by the DO detector at the Fermilab Tevatron from 1995--1996. The total data luminosity is 92.7 pb-1. The data were examined for events with a single electron, four or more jets and large missing transverse energy. The major backgrounds are from W+jets, QCD, tt[macron], and WW events. We observed no excess of events in our data. Based on the data and the expected signal rate we obtain new limits on new physics in terms of mSUGRA model parameters.