A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector

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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.accessioned2021-10-08T07:11:45Z
dc.date.available2021-10-08T07:11:45Z
dc.date.issued2016
dc.description.abstractA new search signature for excited leptons is explored. Excited muons are sought in the channel pp → µµ∗ → µµ jet jet, assuming both the production and decay occur via a contact interaction. The analysis is based on 20.3 fb−1 of pp collision data at a centre-of-mass energy of √ s = 8 TeV taken with the ATLAS detector at the Large Hadron Collider. No evidence of excited muons is found, and limits are set at the 95% confidence level on the cross section times branching ratio as a function of the excited-muon mass mµ ∗ . For mµ ∗ between 1.3 TeV and 3.0 TeV, the upper limit on σB(µ ∗ → µqq¯) is between 0.6 and 1 fb. Limits on σB are converted to lower bounds on the compositeness scale Λ. In the limiting case Λ = mµ ∗ , excited muons with a mass below 2.8 TeV are excluded. With the same model assumptions, these limits at larger µ ∗ masses improve upon previous limits from traditional searches based on the gauge-mediated decay µ ∗ → µγ
dc.identifier.apacitationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., ... Alconada Verzini, M. J. (2016). A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector. <i>Physics Letters, B</i>, 18(7), 73021 - 177. http://hdl.handle.net/11427/34679en_ZA
dc.identifier.chicagocitationAad, G, B Abbott, J Abdallah, O Abdinov, B Abeloos, R Aben, M Abolins, et al "A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector." <i>Physics Letters, B</i> 18, 7. (2016): 73021 - 177. http://hdl.handle.net/11427/34679en_ZA
dc.identifier.citationAad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Abolins, M. & AbouZeid, O.S. et al. 2016. A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector. <i>Physics Letters, B.</i> 18(7):73021 - 177. http://hdl.handle.net/11427/34679en_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 new search signature for excited leptons is explored. Excited muons are sought in the channel pp → µµ∗ → µµ jet jet, assuming both the production and decay occur via a contact interaction. The analysis is based on 20.3 fb−1 of pp collision data at a centre-of-mass energy of √ s = 8 TeV taken with the ATLAS detector at the Large Hadron Collider. No evidence of excited muons is found, and limits are set at the 95% confidence level on the cross section times branching ratio as a function of the excited-muon mass mµ ∗ . For mµ ∗ between 1.3 TeV and 3.0 TeV, the upper limit on σB(µ ∗ → µqq¯) is between 0.6 and 1 fb. Limits on σB are converted to lower bounds on the compositeness scale Λ. In the limiting case Λ = mµ ∗ , excited muons with a mass below 2.8 TeV are excluded. With the same model assumptions, these limits at larger µ ∗ masses improve upon previous limits from traditional searches based on the gauge-mediated decay µ ∗ → µγ DA - 2016 DB - OpenUCT DP - University of Cape Town IS - 7 J1 - Physics Letters, B LK - https://open.uct.ac.za PY - 2016 SM - 0370-2693 SM - 1873-2445 T1 - A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector TI - A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector UR - http://hdl.handle.net/11427/34679 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34679
dc.identifier.vancouvercitationAad G, Abbott B, Abdallah J, Abdinov O, Abeloos B, Aben R, et al. A search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector. Physics Letters, B. 2016;18(7):73021 - 177. http://hdl.handle.net/11427/34679.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Physics
dc.publisher.facultyFaculty of Science
dc.sourcePhysics Letters, B
dc.source.journalissue7
dc.source.journalvolume18
dc.source.pagination73021 - 177
dc.source.urihttps://dx.doi.org/10.1088/1367-2630/18/7/073021
dc.subject.otherSubatomär fysik
dc.subject.otherexcited leptons
dc.subject.otherlepton compositeness
dc.subject.otherleptoquarks
dc.subject.otherElementary particles
dc.subject.otherTellurium compounds
dc.subject.otherBranching ratio
dc.subject.otherCentre-of-mass energies
dc.subject.otherCompositeness
dc.subject.otherConfidence levels
dc.subject.otherContact interaction
dc.subject.otherExcited leptons
dc.subject.otherLarge Hadron Collider
dc.subject.otherLeptoquarks
dc.subject.otherCharged particles
dc.titleA search for an excited muon decaying to a muon and two jets in pp collisions at $sqrt{s};=;8;{rm{TeV}}$ with the ATLAS detector A search for an excited muon decaying to a muon and two jets in pp collisions at √s = 8 TeV with the ATLAS detector
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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