A Search for Neutral Supersymmetric Higgs Bosons at DØ [electronic resource]
Experiment-Hep.
Saved in:
| Online Access: |
Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2010.
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| Subjects: |
MARC
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| 245 | 0 | 2 | |a A Search for Neutral Supersymmetric Higgs Bosons at DØ |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy. ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 2010. | ||
| 300 | |a 129 p. : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 09/01/2010. | ||
| 500 | |a "fermilab-thesis--2010-67" | ||
| 500 | |a Osman, Nicolas Ahmed. | ||
| 520 | 3 | |a A search for Higgs bosons in multijet data from the DØ detector is reported in this thesis. The Higgs boson is the only remaining undiscovered particle in the Standard Model of particle physics, and plays an integral role in this model. It is known that this model is not a complete description of fundamental physics (it does not describe gravity, for example), and so searches for physics beyond the Standard Model are an important part of particle physics. One extension of the Standard Model, the Minimal Supersymmetric Standard Model (MSSM), predicts the existence of five Higgs bosons, two of which can show an enhanced coupling to bottom quarks. For this reason, a search in the bbb (multijet) channel is a sensitive test of Higgs boson physics. The analysis described in this thesis was conducted over 6.6 fb<sup>-1</sup> of data. At the time of writing, the best limits on tan β (a key parameter of the MSSM) in the multijet channel were set by DØ. The new analysis described in this thesis included more data than the previous analysis in the channel, and made use of a new trigger and event-based analysis method. An improved Multivariate Analysis technique was used to separate signal and background events and produce a final discriminant for the limit setting process. These changes increased the expected sensitivity of this measurement by roughly 50% more than would be expected from the increase in the size of data sample alone. | |
| 520 | 0 | |a Experiment-Hep. | |
| 536 | |b AC02-07CH11359. | ||
| 650 | 7 | |a Higgs Bosons. |2 local. | |
| 650 | 7 | |a Multivariate Analysis. |2 local. | |
| 650 | 7 | |a Physics. |2 local. | |
| 650 | 7 | |a Quarks. |2 local. | |
| 650 | 7 | |a Sensitivity. |2 local. | |
| 650 | 7 | |a Standard Model. |2 local. | |
| 650 | 7 | |a Physics Of Elementary Particles And Fields. |2 edbsc. | |
| 710 | 2 | |a Fermi National Accelerator Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
| 856 | 4 | 0 | |u http://www.osti.gov/scitech/biblio/1018736 |z Online Access |
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| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:fermilab-thesis--2010-67 |h Superintendent of Documents classification |i web |n 1 |