Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2013.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2013
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| Online Access: | http://hdl.handle.net/1721.1/79539 |
| _version_ | 1826208651513167872 |
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| author | Bendavid, Joshua Lorne |
| author2 | Christoph M.E. Paus. |
| author_facet | Christoph M.E. Paus. Bendavid, Joshua Lorne |
| author_sort | Bendavid, Joshua Lorne |
| collection | MIT |
| description | Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2013. |
| first_indexed | 2024-09-23T14:08:41Z |
| format | Thesis |
| id | mit-1721.1/79539 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:08:41Z |
| publishDate | 2013 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/795392019-04-10T12:09:44Z Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV Bendavid, Joshua Lorne Christoph M.E. Paus. Massachusetts Institute of Technology. Department of Physics. Massachusetts Institute of Technology. Department of Physics. Physics. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2013. In title on title-page, "[square root of]" appears as the mathematical symbol. Cataloged from PDF version of thesis. Includes bibliographical references (p. 153-158). We have performed a search for the production of the standard model Higgs boson decaying to diphotons in pp collisions at the LHC at [square root of]s = 7-8 TeV with the CMS detector. Having analyzed data corresponding to 5.1 fb-1 at [square root of]s = 7 TeV (2011) and 5.3 fb-1 at [square root of]s = 8 TeV (2012), a statistically significant excess of events is observed with respect to the background prediction. Interpreted as a standard model Higgs, this excess has a local significance of 4.1 standard deviations, with the maximum significance occurring for a Higgs mass of 125 GeV. Taking into account the trials factor given the search range of 110 GeV to 150 GeV in Higgs mass, this excess has a global significance of 3.2 standard deviations. This constitutes evidence for a new particle decaying to diphotons with a mass of around 125 GeV. The rate of observed events is consistent with predictions for the standard model Higgs boson. by Joshua Lorne Bendavid. Ph.D. 2013-07-10T14:53:03Z 2013-07-10T14:53:03Z 2013 2013 Thesis http://hdl.handle.net/1721.1/79539 850420446 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 158 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Physics. Bendavid, Joshua Lorne Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title | Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title_full | Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title_fullStr | Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title_full_unstemmed | Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title_short | Evidence for a narrow Higgs-like diphoton resonance with a mass of 125 GeV in pp collisions at [square root of]s = 7 - 8 TeV |
| title_sort | evidence for a narrow higgs like diphoton resonance with a mass of 125 gev in pp collisions at square root of s 7 8 tev |
| topic | Physics. |
| url | http://hdl.handle.net/1721.1/79539 |
| work_keys_str_mv | AT bendavidjoshualorne evidenceforanarrowhiggslikediphotonresonancewithamassof125gevinppcollisionsatsquarerootofs78tev |