Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108728
DC Field | Value | Language |
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dc.contributor.author | Santos, S. P. Amor dos | - |
dc.contributor.author | Carvalho, J. | - |
dc.contributor.author | Fiolhais, M. C. N. | - |
dc.contributor.author | Galhardo, B. | - |
dc.contributor.author | Veloso, F. | - |
dc.contributor.author | Wolters, H. | - |
dc.contributor.author | ATLAS Collaboration | - |
dc.date.accessioned | 2023-09-11T09:46:38Z | - |
dc.date.available | 2023-09-11T09:46:38Z | - |
dc.date.issued | 2016 | - |
dc.identifier.uri | https://hdl.handle.net/10316/108728 | - |
dc.description.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. | pt |
dc.description.sponsorship | Wethank CERNfor the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently.Weacknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia;BMWFWand FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC,NRCand CFI, Canada; CERN; CONICYT, Chile; CAS,MOSTand NSFC, China; COLCIENCIAS, Colombia;MSMTCR,MPOCRand VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy;MEXTand JSPS, Japan; CNRST, Morocco;FOMandNWO,Netherlands; RCN, Norway;MNiSWand NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia andNRCKI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom;DOEand NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, Région Auvergne and Fondation Partager le Savoir, France;DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from allWLCGpartners is acknowledged gratefully, in particular from CERNand the ATLAS Tier-1 facilities at TRIUMF (Canada),NDGF(Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/ GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide. | pt |
dc.language.iso | eng | pt |
dc.publisher | Institute of Physics Publishing | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.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 | pt |
dc.type | article | - |
degois.publication.firstPage | 073021 | pt |
degois.publication.issue | 7 | pt |
degois.publication.title | New Journal of Physics | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1088/1367-2630/18/7/073021 | pt |
degois.publication.volume | 18 | pt |
dc.date.embargo | 2016-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.author.researchunit | CFisUC – Center for Physics of the University of Coimbra | - |
crisitem.author.researchunit | LIP – Laboratory of Instrumentation and Experimental Particle Physics | - |
crisitem.author.researchunit | LIP – Laboratory of Instrumentation and Experimental Particle Physics | - |
crisitem.author.orcid | 0000-0002-3015-7821 | - |
crisitem.author.orcid | 0000-0002-9588-1773 | - |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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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-detectorNew-Journal-of-Physics.pdf | 2.86 MB | Adobe PDF | View/Open |
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