Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector

Simple item page
dc.contributor.authorAad, G
dc.contributor.authorAbbott, B
dc.contributor.authorAbdallah, J
dc.contributor.authorAbdinov, O
dc.contributor.authorAbeloos, B
dc.contributor.authorAben, R
dc.contributor.authorAbolins, M
dc.contributor.authorAbouZeid, O S
dc.contributor.authorAbraham, N L
dc.contributor.authorAbramowicz, H
dc.contributor.authorAbreu, H
dc.contributor.authorAbreu, R
dc.contributor.authorAbulaiti, Y
dc.contributor.authorAcharya, B S
dc.contributor.authorAdamczyk, L
dc.contributor.authorAdams, D L
dc.contributor.authorAdelman, J
dc.contributor.authorAdomeit, S
dc.contributor.authorAdye, T
dc.contributor.authorAffolder, A A
dc.contributor.authorAgatonovic-Jovin, T
dc.contributor.authorAgricola, J
dc.contributor.authorAguilar-Saavedra, J A
dc.contributor.authorAhlen, S P
dc.contributor.authorAhmadov, F
dc.contributor.authorAielli, G
dc.contributor.authorAkerstedt, H
dc.contributor.authorÅkesson, T P A
dc.contributor.authorAkimov, A V
dc.contributor.authorAlberghi, G L
dc.contributor.authorAlbert, J
dc.contributor.authorAlbrand, S
dc.date.accessioned2021-10-08T07:11:34Z
dc.date.available2021-10-08T07:11:34Z
dc.date.issued2016
dc.description.abstractMeasurements of the top--antitop quark pair production charge asymmetry in the dilepton channel are presented using data corresponding to an integrated luminosity of $20.3$ $textrm{fb}{-1}$ from $pp$ collisions at a center-of-mass energy of $sqrt{s} = 8$ TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the $tbar{t}$ system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance. Two observables are studied: $A{ellell}_{textrm{C}}$ based on the selected leptons and $A{tbar{t}}_{textrm{C}}$ based on the reconstructed $tbar{t}$ final state. The inclusive asymmetries are measured in the full phase space to be $A{ellell}_{textrm{C}} = 0.008 pm 0.006$ and $A{tbar{t}}_{textrm{C}} = 0.021 pm 0.016$, which are in agreement with the Standard Model predictions of $A{ellell}_{textrm{C}} = 0.0064 pm 0.0003 $ and $A{tbar{t}}_{textrm{C}} = 0.0111 pm 0.0004$.
dc.identifier.apacitationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., ... Albrand, S. (2016). Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector. <i>Physical Review D - Particles, Fields, Gravitation, and Cosmology</i>, 94(3), 174 - 177. http://hdl.handle.net/11427/34642en_ZA
dc.identifier.chicagocitationAad, G, B Abbott, J Abdallah, O Abdinov, B Abeloos, R Aben, M Abolins, et al "Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector." <i>Physical Review D - Particles, Fields, Gravitation, and Cosmology</i> 94, 3. (2016): 174 - 177. http://hdl.handle.net/11427/34642en_ZA
dc.identifier.citationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Abolins, M. & et al. 2016. Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector. <i>Physical Review D - Particles, Fields, Gravitation, and Cosmology.</i> 94(3):174 - 177. http://hdl.handle.net/11427/34642en_ZA
dc.identifier.issn1550-2368
dc.identifier.issn1550-7998
dc.identifier.ris TY - Journal Article AU - Aad, G AU - Abbott, B AU - Abdallah, J AU - Abdinov, O AU - Abeloos, B AU - Aben, R AU - Abolins, M AU - AbouZeid, O S AU - Abraham, N L AU - Abramowicz, H AU - Abreu, H AU - Abreu, R AU - Abulaiti, Y AU - Acharya, B S AU - Adamczyk, L AU - Adams, D L AU - Adelman, J AU - Adomeit, S AU - Adye, T AU - Affolder, A A AU - Agatonovic-Jovin, T AU - Agricola, J AU - Aguilar-Saavedra, J A AU - Ahlen, S P AU - Ahmadov, F AU - Aielli, G AU - Akerstedt, H AU - Åkesson, T P A AU - Akimov, A V AU - Alberghi, G L AU - Albert, J AU - Albrand, S AB - Measurements of the top--antitop quark pair production charge asymmetry in the dilepton channel are presented using data corresponding to an integrated luminosity of $20.3$ $textrm{fb}{-1}$ from $pp$ collisions at a center-of-mass energy of $sqrt{s} = 8$ TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. Inclusive and differential measurements as a function of the invariant mass, transverse momentum, and longitudinal boost of the $tbar{t}$ system are performed both in the full phase space and in a fiducial phase space closely matching the detector acceptance. Two observables are studied: $A{ellell}_{textrm{C}}$ based on the selected leptons and $A{tbar{t}}_{textrm{C}}$ based on the reconstructed $tbar{t}$ final state. The inclusive asymmetries are measured in the full phase space to be $A{ellell}_{textrm{C}} = 0.008 pm 0.006$ and $A{tbar{t}}_{textrm{C}} = 0.021 pm 0.016$, which are in agreement with the Standard Model predictions of $A{ellell}_{textrm{C}} = 0.0064 pm 0.0003 $ and $A{tbar{t}}_{textrm{C}} = 0.0111 pm 0.0004$. DA - 2016 DB - OpenUCT DP - University of Cape Town IS - 3 J1 - Physical Review D - Particles, Fields, Gravitation, and Cosmology LK - https://open.uct.ac.za PY - 2016 SM - 1550-2368 SM - 1550-7998 T1 - Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector TI - Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector UR - http://hdl.handle.net/11427/34642 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34642
dc.identifier.vancouvercitationAad G, Abbott B, Abdallah J, Abdinov O, Abeloos B, Aben R, et al. Measurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector. Physical Review D - Particles, Fields, Gravitation, and Cosmology. 2016;94(3):174 - 177. http://hdl.handle.net/11427/34642.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysical Review D - Particles, Fields, Gravitation, and Cosmology
dc.source.journalissue3
dc.source.journalvolume94
dc.source.pagination174 - 177
dc.source.urihttps://dx.doi.org/10.1103/PhysRevD.94.032006
dc.subject.othercharge asymmetry
dc.subject.othertop-quark pair production
dc.subject.otherdilepton final state
dc.subject.otherATLAS detector
dc.subject.other530
dc.titleMeasurements of the charge asymmetry in top-quark pair production in the dilepton final state at √s = 8 TeV with the ATLAS detector
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
AadG_Measurementscha_2016.pdf
Size:
1.12 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Journal Articles