Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV
The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample c...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier BV
2020
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| Online Access: | https://hdl.handle.net/1721.1/126739 |
| _version_ | 1826217662771888128 |
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| author | CMS collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics CMS collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong |
| author_sort | CMS collaboration |
| collection | MIT |
| description | The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9)fb −1 at s=8 (13)TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016)data set ranges from 129 (161)fb to 31 (26)fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell–Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global)significance of 2.8 (1.3)standard deviations. |
| first_indexed | 2024-09-23T17:07:16Z |
| format | Article |
| id | mit-1721.1/126739 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:07:16Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1267392022-09-29T23:47:52Z Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV CMS collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong Massachusetts Institute of Technology. Department of Physics The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9)fb −1 at s=8 (13)TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016)data set ranges from 129 (161)fb to 31 (26)fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell–Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global)significance of 2.8 (1.3)standard deviations. 2020-08-24T14:13:04Z 2020-08-24T14:13:04Z 2019-06 2020-03-03T19:12:32Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/126739 CMS Collaboration (Sirunyan, A.M. et al.) "Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV." Physics Letters B 793 (June 2019): 320-347. ©2019 Author(s) en 10.1016/J.PHYSLETB.2019.03.064 Physics Letters B Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier |
| spellingShingle | CMS collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Barbieri, Richard Alexander Baty, Austin Alan Bauer, Gerry P Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Demiragli, Zeynep Gomez-Ceballos, Guillelmo Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lee, Y. -J. Levin, A. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Roland, Christof Roland, G. Stephans, George S. F. Sumorok, Konstanty C Tatar, K. velicanu, Dragos Alexandru Wang, J Wang, T.W. Wyslouch, Boleslaw Shi, Zhaozhong Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title | Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title_full | Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title_fullStr | Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title_full_unstemmed | Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title_short | Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √ s = 8 and 13 TeV |
| title_sort | search for a standard model like higgs boson in the mass range between 70 and 110 gev in the diphoton final state in proton proton collisions at √ s 8 and 13 tev |
| url | https://hdl.handle.net/1721.1/126739 |
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