Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV

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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.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.contributor.authorAlconada Verzini, M J
dc.date.accessioned2021-10-08T07:11:51Z
dc.date.available2021-10-08T07:11:51Z
dc.date.issued2016
dc.description.abstractA search is performed for the process pp → G∗ → B H ¯ b/B¯ H b → Hb¯ b → b¯ bb¯ b, predicted in composite Higgs scenarios, where G∗ is a heavy colour octet vector resonance and B H a vector-like quark of charge −1/3. The data were obtained from pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.5 fb−1, recorded by the ATLAS detector at the LHC. The largest background, multijet production, is estimated using a data-driven method. No significant excess of events with respect to Standard Model predictions is observed, and upper limits on the production cross section times branching ratio are set. Comparisons to the predictions from a specific benchmark model are made, resulting in lower mass limits in the two-dimensional mass plane of mG∗ vs. mB H .
dc.identifier.apacitationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., ... Alconada Verzini, M. J. (2016). Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV. <i>Physics Letters, B</i>, 758(C), 249 - 268. http://hdl.handle.net/11427/34697en_ZA
dc.identifier.chicagocitationAad, G, B Abbott, J Abdallah, O Abdinov, B Abeloos, R Aben, M Abolins, et al "Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV." <i>Physics Letters, B</i> 758, C. (2016): 249 - 268. http://hdl.handle.net/11427/34697en_ZA
dc.identifier.citationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Abolins, M. & AbouZeid, O.S. et al. 2016. Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV. <i>Physics Letters, B.</i> 758(C):249 - 268. http://hdl.handle.net/11427/34697en_ZA
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
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 - 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 AU - Alconada Verzini, M J AB - A search is performed for the process pp → G∗ → B H ¯ b/B¯ H b → Hb¯ b → b¯ bb¯ b, predicted in composite Higgs scenarios, where G∗ is a heavy colour octet vector resonance and B H a vector-like quark of charge −1/3. The data were obtained from pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.5 fb−1, recorded by the ATLAS detector at the LHC. The largest background, multijet production, is estimated using a data-driven method. No significant excess of events with respect to Standard Model predictions is observed, and upper limits on the production cross section times branching ratio are set. Comparisons to the predictions from a specific benchmark model are made, resulting in lower mass limits in the two-dimensional mass plane of mG∗ vs. mB H . DA - 2016 DB - OpenUCT DP - University of Cape Town IS - C J1 - Physics Letters, B LK - https://open.uct.ac.za PY - 2016 SM - 0370-2693 SM - 1873-2445 T1 - Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV TI - Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV UR - http://hdl.handle.net/11427/34697 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34697
dc.identifier.vancouvercitationAad G, Abbott B, Abdallah J, Abdinov O, Abeloos B, Aben R, et al. Search for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV. Physics Letters, B. 2016;758(C):249 - 268. http://hdl.handle.net/11427/34697.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysics Letters, B
dc.source.journalissueC
dc.source.journalvolume758
dc.source.pagination249 - 268
dc.source.urihttps://dx.doi.org/10.1016/j.physletb.2016.04.061
dc.subject.otherPhysics
dc.subject.otherATLAS
dc.subject.otherQuark
dc.subject.otherFísica
dc.subject.otherarticle
dc.titleSearch for single production of a vector-like quark via a heavy gluon in the 4b final state with the ATLAS detector in pp collisions at √s = 8 TeV
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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