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Abstract:

Anew 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.

Registro:

Documento: Artículo
Título:A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2827 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2827 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:excited leptons; lepton compositeness; leptoquarks; Elementary particles; Tellurium compounds; Branching ratio; Centre-of-mass energies; Compositeness; Confidence levels; Contact interaction; Excited leptons; Large Hadron Collider; Leptoquarks; Charged particles
Año:2016
Volumen:18
Número:7
DOI: http://dx.doi.org/10.1088/1367-2630/18/7/073021
Título revista:New Journal of Physics
Título revista abreviado:New J. Phys.
ISSN:13672630
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13672630_v18_n7_p_Aad

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Citas:

---------- APA ----------
(2016) . A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector. New Journal of Physics, 18(7).
http://dx.doi.org/10.1088/1367-2630/18/7/073021
---------- CHICAGO ----------
Aad, G. "A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector" . New Journal of Physics 18, no. 7 (2016).
http://dx.doi.org/10.1088/1367-2630/18/7/073021
---------- MLA ----------
Aad, G. "A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector" . New Journal of Physics, vol. 18, no. 7, 2016.
http://dx.doi.org/10.1088/1367-2630/18/7/073021
---------- VANCOUVER ----------
Aad, G. A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector. New J. Phys. 2016;18(7).
http://dx.doi.org/10.1088/1367-2630/18/7/073021