Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb[superscript −1] of pp collisions at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squar...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2014
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| Online Access: | http://hdl.handle.net/1721.1/84511 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826199927760355328 |
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| author | Taylor, Frank E. Aad, G. Abajyan, T. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O. S. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B. S. Adamczyk, L. Adams, D. L. Addy, T. N. Adelman, J. Adomeit, S. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Aad, G. Abajyan, T. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O. S. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B. S. Adamczyk, L. Adams, D. L. Addy, T. N. Adelman, J. Adomeit, S. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb[superscript −1] of pp collisions at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks ([˜ over b][subscript 1] and [˜ over t][subscript 1] respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95 % confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parity-conserving models in which either the bottom or the top squark is the lightest squark. The [˜ over b][subscript 1] is assumed to decay via [˜ over b][subscript 1] → [~0 over χ1] and the [˜ over t][subscript 1] via [˜ over t][subscript 1] →[b~± over χ1], with undetectable products of the subsequent decay of the [~± over χ1] due to the small mass splitting between the [~± over χ1] and the [~0 over χ1]. |
| first_indexed | 2024-09-23T11:28:20Z |
| format | Article |
| id | mit-1721.1/84511 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:28:20Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/845112022-09-27T19:44:20Z Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector Taylor, Frank E. Aad, G. Abajyan, T. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O. S. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B. S. Adamczyk, L. Adams, D. L. Addy, T. N. Adelman, J. Adomeit, S. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb[superscript −1] of pp collisions at s√ = 8 TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks ([˜ over b][subscript 1] and [˜ over t][subscript 1] respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95 % confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parity-conserving models in which either the bottom or the top squark is the lightest squark. The [˜ over b][subscript 1] is assumed to decay via [˜ over b][subscript 1] → [~0 over χ1] and the [˜ over t][subscript 1] via [˜ over t][subscript 1] →[b~± over χ1], with undetectable products of the subsequent decay of the [~± over χ1] due to the small mass splitting between the [~± over χ1] and the [~0 over χ1]. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2014-01-24T19:03:23Z 2014-01-24T19:03:23Z 2013-10 2013-08 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/84511 Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, et al. “Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector.” Journal of High Energy Physics 2013, no. 10 (October 29, 2013). © CERN, for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1007/jhep10(2013)189 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer |
| spellingShingle | Taylor, Frank E. Aad, G. Abajyan, T. Abbott, B. Abdallah, J. Abdel Khalek, S. Abdinov, O. Aben, R. Abi, B. Abolins, M. AbouZeid, O. S. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B. S. Adamczyk, L. Adams, D. L. Addy, T. N. Adelman, J. Adomeit, S. Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title | Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title_full | Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title_fullStr | Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title_full_unstemmed | Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title_short | Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector |
| title_sort | search for direct third generation squark pair production in final states with missing transverse momentum and two b jets in √s 8 tev pp collisions with the atlas detector |
| url | http://hdl.handle.net/1721.1/84511 https://orcid.org/0000-0002-7586-7253 |
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