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

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...

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Autor principal:	Aad, G.
Formato:	JOUR
Materias:	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
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_13672630_v18_n7_p_Aad
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_13672630_v18_n7_p_Aad
record_format	dspace
spelling	todo:paper_13672630_v18_n7_p_Aad2023-10-03T16:11:30Z 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. 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 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13672630_v18_n7_p_Aad
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 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
topic_facet	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
description	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.
format	JOUR
author	Aad, G.
author_facet	Aad, G.
author_sort	Aad, G.
title	A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
title_short	A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
title_full	A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
title_fullStr	A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
title_full_unstemmed	A search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 TeV with the ATLAS detector
title_sort	search for an excited muon decaying to a muon and two jets in pp collisions at √ s = 8 tev with the atlas detector
url	http://hdl.handle.net/20.500.12110/paper_13672630_v18_n7_p_Aad
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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

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