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Search for excited muons in p(p)over-bar collisions at root s=1.96 TeV
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2006 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 73, no 11, 111102- p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2006. Vol. 73, no 11, 111102- p.
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Physical Sciences
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URN: urn:nbn:se:kth:diva-37414DOI: 10.1103/PhysRevD.73.111102ISI: 000238698300002Scopus ID: 2-s2.0-33744744086OAI: oai:DiVA.org:kth-37414DiVA: diva2:433799
Available from: 2011-08-11 Created: 2011-08-11 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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Gollub, NilsStrandberg, Jonas
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