Scholars@Duke publication: Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector

Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector

Publication , Journal Article

Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O; Aben, R; Abi, B; Abolins, M; Abouzeid, OS; Abramowicz, H; Abreu, H ...

Published in: Journal of High Energy Physics

January 1, 2014

Published version (DOI)

A search is presented for direct top-squark pair production in final states with two leptons (electrons or muons) of opposite charge using 20.3 fb -1 of pp collision data at √s = 8 TeV, collected by the ATLAS experiment at the Large Hadron Collider in 2012. No excess over the Standard Model expectation is found. The results are interpreted under the separate assumptions (i) that the top squark decays to a b-quark in addition to an on-shell chargino whose decay occurs via a real or virtual W boson, or (ii) that the top squark decays to a t-quark and the lightest neutralino. A top squark with a mass between 150 GeV and 445 GeV decaying to a b-quark and an on-shell chargino is excluded at 95% confidence level for a top squark mass equal to the chargino mass plus 10 GeV, in the case of a 1 GeV lightest neutralino. Top squarks with masses between 215 (90) GeV and 530 (170) GeV decaying to an on-shell (off-shell) t-quark and a neutralino are excluded at 95% confidence level for a 1 GeV neutralino. [Figure not available: see fulltext.] © 2014 The Author(s).

Duke Scholars

Author Alfred T. Goshaw Physics

Author Ayana T. Arce Physics

Author Ashutosh V. Kotwal Physics

Author Mark C. Kruse Physics

Author Seog Oh Physics

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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP06(2014)124

EISSN

1029-8479

ISSN

1126-6708

Publication Date

January 1, 2014

Volume

2014

Issue

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5106 Nuclear and plasma physics
4902 Mathematical physics
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0105 Mathematical Physics

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Chicago

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MLA

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Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., … Arnaez, O. (2014). Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector. Journal of High Energy Physics, 2014(6). https://doi.org/10.1007/JHEP06(2014)124

Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, et al. “Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector.” Journal of High Energy Physics 2014, no. 6 (January 1, 2014). https://doi.org/10.1007/JHEP06(2014)124.

Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, et al. Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector. Journal of High Energy Physics. 2014 Jan 1;2014(6).

Aad, G., et al. “Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector.” Journal of High Energy Physics, vol. 2014, no. 6, Jan. 2014. Scopus, doi:10.1007/JHEP06(2014)124.

Aad G, Abajyan T, Abbott B, Abdallah J, Abdel Khalek S, Abdinov O, Aben R, Abi B, Abolins M, Abouzeid OS, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adamczyk L, Adams DL, Adelman J, Adomeit S, Adye T, Agatonovic-Jovin T, Aguilar-Saavedra JA, Agustoni M, Ahlen SP, Ahmad A, Ahmadov F, Aielli G, Åkesson TPA, Akimoto G, Akimov AV, Albert J, Albrand S, Verzini MJA, Aleksa M, Aleksandrov IN, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Alimonti G, Alio L, Alison J, Allbrooke BMM, Allison LJ, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso F, Alpigiani C, Altheimer A, Gonzalez BA, Alviggi MG, Amako K, Coutinho YA, Amelung C, Amidei D, Ammosov VV, Santos SPAD, Amorim A, Amoroso S, Amram N, Amundsen G, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders G, Anderson KJ, Andreazza A, Andrei V, Anduaga XS, Angelidakis S, Anger P, Angerami A, Anghinolfi F, Anisenkov AV, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonov A, Antos J, Anulli F, Aoki M, Bella LA, Apolle R, Arabidze G, Aracena I, Arai Y, Araque JP, Arce ATH, Arguin JF, Argyropoulos S, Arik M, Armbruster AJ, Arnaez O. Search for direct top-squark pair production in final states with two leptons in pp collisions at √s = 8 TeV with the ATLAS detector. Journal of High Energy Physics. 2014 Jan 1;2014(6).

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP06(2014)124

EISSN

1029-8479

ISSN

1126-6708

Publication Date

January 1, 2014

Volume

2014

Issue

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5106 Nuclear and plasma physics
4902 Mathematical physics
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0105 Mathematical Physics