Measurement of top quark polarization in top-antitop events from proton-proton collisions at ís=7__TeV using the ATLAS detector.

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dc.contributor.author Aad, G
dc.contributor.author Abajyan, T
dc.contributor.author Abbott, B
dc.contributor.author Abdallah, J
dc.contributor.author Abdel Khalek, S
dc.contributor.author Abdinov, O
dc.contributor.author Aben, R
dc.contributor.author Abi, B
dc.contributor.author Abolins, M
dc.contributor.author AbouZeid, O S
dc.contributor.author Abramowicz, H
dc.contributor.author Abreu, H
dc.contributor.author Abulaiti, Y
dc.contributor.author Acharya, B S
dc.contributor.author Adamczyk, L
dc.contributor.author Adams, D L
dc.contributor.author Addy, T N
dc.contributor.author Adelman, J
dc.contributor.author Adomeit, S
dc.contributor.author Adye, T
dc.contributor.author Aefsky, S
dc.contributor.author Agatonovic-Jovin, T
dc.contributor.author Aguilar-Saavedra, J A
dc.contributor.author Agustoni, M
dc.contributor.author Ahlen, S P
dc.contributor.author Ahmad, A
dc.contributor.author Ahsan, M
dc.contributor.author Aielli, G
dc.contributor.author kesson, T P A
dc.contributor.author Akimoto, G
dc.contributor.author Akimov, A V
dc.contributor.author Alam, M A
dc.contributor.author Albert, J
dc.contributor.author Albrand, S
dc.contributor.author Alconada Verzini, M J
dc.contributor.author Aleksa, M
dc.contributor.author Aleksandrov, I N
dc.contributor.author Alessandria, F
dc.contributor.author Alexa, C
dc.contributor.author Alexander, G
dc.contributor.author Alexandre, G
dc.contributor.author Alexopoulos, T
dc.contributor.author Alhroob, M
dc.contributor.author Aliev, M
dc.contributor.author Alimonti, G
dc.contributor.author Alio, L
dc.contributor.author Alison, J
dc.contributor.author Allbrooke, B M M
dc.contributor.author Allison, L J
dc.contributor.author Allport, P P
dc.contributor.author Allwood-Spiers, S E
dc.contributor.author Almond, J
dc.contributor.author Aloisio, A
dc.contributor.author Alon, R
dc.contributor.author Alonso, A
dc.contributor.author Alonso, F
dc.contributor.author Altheimer, A
dc.contributor.author Alvarez Gonzalez, B
dc.contributor.author Alviggi, M G
dc.contributor.author Amako, K
dc.contributor.author Amaral Coutinho, Y
dc.contributor.author Amelung, C
dc.contributor.author Ammosov, V V
dc.contributor.author Amor Dos Santos, S P
dc.contributor.author Amorim, A
dc.contributor.author Amoroso, S
dc.contributor.author Amram, N
dc.contributor.author Anastopoulos, C
dc.contributor.author Ancu, L S
dc.contributor.author Andari, N
dc.contributor.author Andeen, T
dc.contributor.author Anders, C F
dc.contributor.author Anders, G
dc.contributor.author Anderson, K J
dc.contributor.author Andreazza, A
dc.contributor.author Andrei, V
dc.contributor.author Anduaga, X S
dc.contributor.author Angelidakis, S
dc.contributor.author Anger, P
dc.contributor.author Angerami, A
dc.contributor.author Anghinolfi, F
dc.contributor.author Anisenkov, A V
dc.contributor.author Anjos, N
dc.contributor.author Annovi, A
dc.contributor.author Antonaki, A
dc.contributor.author Antonelli, M
dc.contributor.author Antonov, A
dc.contributor.author Antos, J
dc.contributor.author Anulli, F
dc.contributor.author Aoki, M
dc.contributor.author Aperio Bella, L
dc.contributor.author Apolle, R
dc.contributor.author Arabidze, G
dc.contributor.author Aracena, I
dc.contributor.author Arai, Y
dc.contributor.author Arce, A T H
dc.contributor.author Arfaoui, S
dc.contributor.author Arguin, J-F
dc.contributor.author Argyropoulos, S
dc.contributor.author Arik, E
dc.date.accessioned 2019-01-17T19:55:29Z
dc.date.available 2019-01-17T19:55:29Z
dc.date.issued 2013
dc.identifier.citation Phys. Rev. Lett. 111, 232002
dc.identifier.issn 1079-7114
dc.identifier.uri https://hdl.handle.net/10192/36184
dc.description.abstract This Letter presents measurements of the polarization of the top quark in top-antitop quark pair events, using 4.7 fb(-1) of proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at ís=7 TeV. Final states containing one or two isolated leptons (electrons or muons) and jets are considered. Two measurements of _(_)P, the product of the leptonic spin-analyzing power and the top quark polarization, are performed assuming that the polarization is introduced by either a CP conserving or a maximally CP violating production process. The measurements obtained, _(_)P(CPC)-0.035±0.014(stat)±0.037(syst) and _(_)P(CPV)=0.020±0.016(stat)(-0.017)(+0.013)(syst), are in good agreement with the standard model prediction of negligible top quark polarization.
dc.format.extent 1 file
dc.language English
dc.language.iso eng
dc.publisher American Physical Society
dc.relation.isversionof https://dx.doi.org/10.1103/PhysRevLett.111.232002
dc.rights Creative Commons Attribution 3.0 Unported
dc.rights.uri http://creativecommons.org/licenses/by/3.0/
dc.subject Physical Sciences
dc.subject Fysik
dc.subject Natural Sciences Physical Sciences
dc.subject Naturvetenskap Fysik
dc.subject Pair Production
dc.subject Decay
dc.title Measurement of top quark polarization in top-antitop events from proton-proton collisions at ís=7__TeV using the ATLAS detector.
dc.type Article
dc.contributor.department Department of Physics
dc.relation.journal Physical Review Letters


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