Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector
A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of √s = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximat...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2014
|
| Online Access: | http://hdl.handle.net/1721.1/92010 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811092956103311360 |
|---|---|
| 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 | A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of √s = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb[superscript −1]. The event selection requires a Z boson decaying into high pT electrons or muons, and at least one b-jet, identified by its displaced vertex, with transverse momentum pT>25 GeV and rapidity |y|<2.1. After subtraction of background processes, the yield is extracted from the vertex mass distribution of the candidate b-jets. The ratio of this cross-section to the inclusive Z cross-section (the average number of b-jets per Z event) is also measured. Both results are found to be in good agreement with perturbative QCD predictions at next-to-leading order. |
| first_indexed | 2024-09-23T15:37:13Z |
| format | Article |
| id | mit-1721.1/92010 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:37:13Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/920102022-09-29T15:00:30Z Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A measurement is presented of the inclusive cross-section for b-jet production in association with a Z boson in pp collisions at a centre-of-mass energy of √s = 7 TeV. The analysis uses the data sample collected by the ATLAS experiment in 2010, corresponding to an integrated luminosity of approximately 36 pb[superscript −1]. The event selection requires a Z boson decaying into high pT electrons or muons, and at least one b-jet, identified by its displaced vertex, with transverse momentum pT>25 GeV and rapidity |y|<2.1. After subtraction of background processes, the yield is extracted from the vertex mass distribution of the candidate b-jets. The ratio of this cross-section to the inclusive Z cross-section (the average number of b-jets per Z event) is also measured. Both results are found to be in good agreement with perturbative QCD predictions at next-to-leading order. European Organization for Nuclear Research United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2014-12-03T15:48:53Z 2014-12-03T15:48:53Z 2011-12 2011-11 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/92010 Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Measurement of the Cross-Section for b-Jets Produced in Association with a Z Boson at √s = 7 TeV with the ATLAS Detector.” Physics Letters B 706, no. 4–5 (January 2012): 295–313. © 2011 CERN https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1016/j.physletb.2011.11.059 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Taylor, Frank E. Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title | Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title_full | Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title_fullStr | Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title_full_unstemmed | Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title_short | Measurement of the cross-section for b-jets produced in association with a Z boson at √s = 7 TeV with the ATLAS detector |
| title_sort | measurement of the cross section for b jets produced in association with a z boson at √s 7 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/92010 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofthecrosssectionforbjetsproducedinassociationwithazbosonats7tevwiththeatlasdetector |