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Search for a scalar or vector particle decaying into Z gamma in p(p)over-bar collisions at root s=1.96 TeV
University of Chicago.ORCID-id: 0000-0002-8913-0981
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Rekke forfattare: 5232009 (engelsk)Inngår i: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 671, nr 3, s. 349-355Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present a search for a narrow scalar or vector resonance decaying into Z gamma with a subsequent Z boson decay into a pair of electrons or moons. The data for this search were collected with the D circle divide detecror at the Fermilab Tevatron p (p) over bar collider at a center of mass energy root s = 1.96 TeV. Using 1.1 (1.0) fb(-1) of data, we observe 49 (50) candidate events in the electron (muon) channel, in good agreement with the standard model prediction. From the combination of both channels, we derive 95% C.L. upper limits on the cross section times branching fraction (sigma x B) into Z gamma. These limits range from 0.19 (0.20) pb for a scalar (vector) resonance mass of 600 GeV/c(2) to 2.5 (3.1) pb for a mass of 140 GeV/c(2).

sted, utgiver, år, opplag, sider
2009. Vol. 671, nr 3, s. 349-355
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Identifikatorer
URN: urn:nbn:se:kth:diva-72715DOI: 10.1016/j.physletb.2008.12.009ISI: 000263119200006Scopus ID: 2-s2.0-58149468350OAI: oai:DiVA.org:kth-72715DiVA, id: diva2:488669
Merknad
QC 20120202 Author Count: 523Tilgjengelig fra: 2012-02-02 Laget: 2012-02-01 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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Gollub, NilsStrandberg, Jonas
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