ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider

This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb[superscript −1] of collisions at a centre-o...

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Main Authors: Conta, C., Dondero, P., Ferrari, Ruggero, Fraternali, M., Gaudio, G., Introzzi, G., Lanza, A., Livan, M., Negri, A., Polesello, G., Rebuzzi, D. M., Rimoldi, A., Vercesi, V.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Springer-Verlag 2017
Online Access:http://hdl.handle.net/1721.1/107832
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author Conta, C.
Dondero, P.
Ferrari, Ruggero
Fraternali, M.
Gaudio, G.
Introzzi, G.
Lanza, A.
Livan, M.
Negri, A.
Polesello, G.
Rebuzzi, D. M.
Rimoldi, A.
Vercesi, V.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Conta, C.
Dondero, P.
Ferrari, Ruggero
Fraternali, M.
Gaudio, G.
Introzzi, G.
Lanza, A.
Livan, M.
Negri, A.
Polesello, G.
Rebuzzi, D. M.
Rimoldi, A.
Vercesi, V.
author_sort Conta, C.
collection MIT
description This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb[superscript −1] of collisions at a centre-of-mass energy of √s = 8 TeV, although in some case an additional 4.7 fb[superscript −1] of collision data at √s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.
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spelling mit-1721.1/1078322022-09-26T10:41:22Z ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider Conta, C. Dondero, P. Ferrari, Ruggero Fraternali, M. Gaudio, G. Introzzi, G. Lanza, A. Livan, M. Negri, A. Polesello, G. Rebuzzi, D. M. Rimoldi, A. Vercesi, V. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Conta, C. Dondero, P. Ferrari, Ruggero Fraternali, M. Gaudio, G. Introzzi, G. Lanza, A. Livan, M. Negri, A. Polesello, G. Rebuzzi, D. M. Rimoldi, A. Vercesi, V. This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb[superscript −1] of collisions at a centre-of-mass energy of √s = 8 TeV, although in some case an additional 4.7 fb[superscript −1] of collision data at √s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2017-04-03T21:06:41Z 2017-04-03T21:06:41Z 2015-10 2015-06 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/107832 ATLAS Publications et al. “ATLAS Run 1 Searches for Direct Pair Production of Third-Generation Squarks at the Large Hadron Collider.” The European Physical Journal C 75.10 (2015): n. pag. en_US http://dx.doi.org/10.1140/epjc/s10052-015-3726-9 European Physical Journal C Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer
spellingShingle Conta, C.
Dondero, P.
Ferrari, Ruggero
Fraternali, M.
Gaudio, G.
Introzzi, G.
Lanza, A.
Livan, M.
Negri, A.
Polesello, G.
Rebuzzi, D. M.
Rimoldi, A.
Vercesi, V.
ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title_full ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title_fullStr ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title_full_unstemmed ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title_short ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
title_sort atlas run 1 searches for direct pair production of third generation squarks at the large hadron collider
url http://hdl.handle.net/1721.1/107832
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