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  • Abazov, V. M. (author)

Search for excited muons in p(p)over-bar collisions at root s=1.96 TeV

  • Article/chapterEnglish2006

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  • 2006
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:kth-37414
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37414URI
  • https://doi.org/10.1103/PhysRevD.73.111102DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • We present the results of a search for the production of an excited state of the muon, mu(*), in proton antiproton collisions at root s =1.96 TeV. The data have been collected with the D0 experiment at the Fermilab Tevatron Collider and correspond to an integrated luminosity of approximately 380 pb(-1). We search for mu(*) in the process p (p) over bar ->mu(*)mu, with the mu(*) subsequently decaying to a muon plus photon. No excess above the standard model expectation is observed in data. Interpreting our data in the context of a model that describes mu(*) production by four-fermion contact interactions and mu(*) decay via electroweak processes, we set a 95% confidence level production cross section upper limit ranging from 0.057 to 0.112 pb, depending on the mass of the excited muon. Choosing the scale for contact interactions to be Lambda=1 TeV, excited muon masses below 618 GeV are excluded.

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  • Åsman, Barbro (author)
  • Clément, Christophe (author)
  • Gollub, Nils (author)
  • Strandberg, Jonas (author)
  • Zverev, E. G. (author)

Related titles

  • In:Physical Review D73:11, s. 111102-1550-79981550-2368

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