Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb−1 of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy √s = 8 TeV. A range of techniques for optimising the signal jet mass resolu...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Springer-Verlag
2016
|
| Online Access: | http://hdl.handle.net/1721.1/105496 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826195321086017536 |
|---|---|
| author | Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E |
| author_sort | Taylor, Frank E |
| collection | MIT |
| description | This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb−1 of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy
√s = 8 TeV. A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse
momenta larger than 200 GeV while maintaining multijet background efficiencies of 2–4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques. |
| first_indexed | 2024-09-23T10:11:01Z |
| format | Article |
| id | mit-1721.1/105496 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:11:01Z |
| publishDate | 2016 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/1054962022-09-30T19:26:53Z Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb−1 of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy √s = 8 TeV. A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2–4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques. United States. Dept. of Energy National Science Foundation (U.S) Brookhaven National Laboratory 2016-12-01T19:02:19Z 2016-12-01T19:02:19Z 2016-03 2015-10 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/105496 Atlas Collaboration et al. “Identification of Boosted, Hadronically Decaying W Bosons and Comparisons with ATLAS Data Taken at √s = 8 TeV.” The European Physical Journal C 76.3 (2016): n. pag. © 2016 CERN for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1140/epjc/s10052-016-3978-z The European Physical Journal C Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer |
| spellingShingle | Taylor, Frank E Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title | Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title_full | Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title_fullStr | Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title_full_unstemmed | Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title_short | Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV |
| title_sort | identification of boosted hadronically decaying w bosons and comparisons with atlas data taken at √s 8 tev |
| url | http://hdl.handle.net/1721.1/105496 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke identificationofboostedhadronicallydecayingwbosonsandcomparisonswithatlasdatatakenats8tev |