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Search for supersymmetry with gauge-mediated breaking in diphoton events at DØ
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
2005 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 94, no 4Article in journal (Refereed) Published
Abstract [en]

We report the results of a search for supersymmetry (SUSY) with gauge-mediatedbreaking in the missing transverse energy distribution of inclusive diphoton events using 263 pb -1 of data collected by the DO experiment at the Fermilab Tevatron Collider in 2002-2004. No excess is observed above the background expected from standard model processes, and lower limits on the masses of the lightest neutralino and chargino of about 108 and 195 GeV, respectively, are set at the 95% confidence level. These are the most stringent limits to date for models with gauge-mediated SUSY breaking with a short-lived neutralino as the next-to-lightest SUSY particle. 

Place, publisher, year, edition, pages
2005. Vol. 94, no 4
Keyword [en]
Bosons, Electroweak scales, End calorimeters (EC), Gauge mediated supersymmetry breaking (GMSB)
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-84526DOI: 10.1103/PhysRevLett.94.041801ISI: 000226779000015ScopusID: 2-s2.0-18044377978OAI: diva2:499528
QC 20120228Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-02-28Bibliographically approved

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