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

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
GIORDANI, Mario
2016
  • journal article

Periodico
NEW JOURNAL OF PHYSICS
Abstract
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-muonmass μμ∗. For μμ∗between 1.3 and 3.0 TeV, the upper limit on φB (μ∗→ μqq) is between 0.6 and 1 fb. Limits on sB are converted to lower bounds on the compositeness scale. In the limiting case L = μμ∗, excitedmuonswith amass below2.8 TeVare excluded.With the samemodel assumptions, these limits at larger μ∗masses improve upon previous limits fromtraditional searches based on the gauge-mediated decay μ∗→ μγ. © 2016 CERN for the benefit of the ATLAS Collaboration.
DOI
10.1088/1367-2630/18/7/073021
WOS
WOS:000381870700003
Archivio
http://hdl.handle.net/11390/1096577
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84979678889
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979678889&partnerID=40&md5=bd09ef2f45eb38cb7fdc6b4a7794963e
http://iopscience.iop.org/article/10.1088/1367-2630/18/7/073021/meta;jsessionid=A7D4886CD55C3EC0955C9D34CE864A6B.c3.iopscience.cld.iop.org
Diritti
metadata only access
Soggetti
  • excited lepton

  • lepton compositene

  • leptoquarks

Scopus© citazioni
6
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
4
Data di acquisizione
Mar 27, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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