The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2008.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2009
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| Online Access: | http://hdl.handle.net/1721.1/44757 |
| _version_ | 1811079508991672320 |
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| author | Melachrinos, Constantinos |
| author2 | Christoph M.E. Paus. |
| author_facet | Christoph M.E. Paus. Melachrinos, Constantinos |
| author_sort | Melachrinos, Constantinos |
| collection | MIT |
| description | Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2008. |
| first_indexed | 2024-09-23T11:16:11Z |
| format | Thesis |
| id | mit-1721.1/44757 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:16:11Z |
| publishDate | 2009 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/447572019-04-11T06:29:53Z The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS Melachrinos, Constantinos Christoph M.E. Paus. Massachusetts Institute of Technology. Dept. of Physics. Massachusetts Institute of Technology. Dept. of Physics. Physics. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2008. In title on title page, "[mu]" appears as lower case Greek letter; and, double underscored "l" and "e" appear as script. Includes bibliographical references (p. 57-59). The startup of the Large Hadron Collider will allow scientists to probe energy scales that existed picoseconds after the Big Bang. Monte Carlo samples of many Standard Model processes are produced to simulate the conditions in the Compact Muon Solenoid detector. Data analysis techniques are developed to measure the cross section of the W Z --> 3l(e, [mu]) decay channel. The results are [sgima]all = 723.4 ± 27.6(stat.) ± 144.7(syst.) fb for integrated luminosity 1 fb-1. Cross section measurements deduced by our data analysis techniques agree with the theoretical predictions, [sigma] pred. all = 708 ± 26.6 fb. The selection of W Z --> 3l events gave 43.5 ± 6.6 signal events with 6.4 ± 2.5 background events, enough to claim an observation at the level of five standard deviations. The understanding of this process will aid in the search for the Higgs boson, as well as in the search for new physics in the early stages of the operation of the detector. by Constantinos Melachrinos. S.B. 2009-03-16T19:39:20Z 2009-03-16T19:39:20Z 2008 2008 Thesis http://hdl.handle.net/1721.1/44757 299062071 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 59, [1] p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Physics. Melachrinos, Constantinos The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title | The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title_full | The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title_fullStr | The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title_full_unstemmed | The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title_short | The Muon Detection System and W Z --> 3l̳(e̳, [mu]) cross section measurement at CMS |
| title_sort | muon detection system and w z 3l e mu cross section measurement at cms |
| topic | Physics. |
| url | http://hdl.handle.net/1721.1/44757 |
| work_keys_str_mv | AT melachrinosconstantinos themuondetectionsystemandwz3lemucrosssectionmeasurementatcms AT melachrinosconstantinos muondetectionsystemandwz3lemucrosssectionmeasurementatcms |