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Sökning: onr:20187537 > A search for an exc...

  • Aad, G. (författare)

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

  • E-artikel/E-kapitelEngelska2016

Förlag, utgivningsår, omfång ...

  • 2016

Nummerbeteckningar

  • LIBRIS-ID:20187537
  • http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-304619uri
  • urn:nbn:se:uu:diva-304619urn
  • 10.1088/1367-2630/18/7/073021doi

Kompletterande språkuppgifter

  • Språk:engelska

Ingår i deldatabas

Anmärkningar

  • <p>ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1088/1367-2630/18/7/073021</p><p>Funding: We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMTCR, MPOCR and 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; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRCKI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS 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; DOE and 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 Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex and Idex, ANR, Region 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 all WLCG partners is acknowledged gratefully, in particular from CERN and 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.</p>
  • Published
  • gratis
  • Anew search signature for excited leptons is explored. Excited muons are sought in the channel pp -&gt; mu mu* -&gt; mu mu 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 root 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 m(mu)*. For m(mu)* between 1.3 and 3.0 TeV, the upper limit on sigma B(mu* -&gt; mu q (q) over bar) is between 0.6 and 1 fb. Limits on sB are converted to lower bounds on the compositeness scale Lambda. In the limiting case Lambda = m(mu)*, excited muons with a mass below 2.8 TeV are excluded. With the same model assumptions, these limits at larger mu* masses improve upon previous limits from traditional searches based on the gauge-mediated decay mu* -&gt; mu gamma.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Bergeås, Elin Kuutmann (författare)
  • Brenner, Richard (författare)
  • Ekelöf, Tord (författare)
  • Ellert, Mattias (författare)
  • Ferrari, Arnaud (författare)
  • Gradin, P. O. Joakim (författare)
  • Isaksson, Charlie (författare)
  • Maddocks, H.J. (författare)
  • Öhman, Henrik (författare)
  • Pelikan, Daniel (författare)
  • Rangel-Smith, Camilla (författare)
  • Zwalinski, L. (författare)
  • Uppsala universitetTeknisk-naturvetenskapliga vetenskapsområdet (utgivare)

Sammanhörande titlar

  • Del av/supplement till:channel record
  • Ingår i:VärdpublikationNew Journal of Physics181367-2630

Internetlänk

Länkade data-URI:er (test)

  • 264446 (Naturvetenskap hsv)
  • 274895 (Fysik hsv)
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