Search for massive colored scalars in four-jet final states in root s=7 TeV proton-proton collisions with the ATLAS detector

A search for pair-produced scalar particles decaying to a four-jet final state is presented. The analysis is performed using an integrated luminosity of 34 pb(-1) recorded by the ATLAS detector in 2010. No deviation from the Standard Model is observed. For a scalar mass of 100 GeV (190 GeV) the limi...

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Bibliographic Details
Main Authors: Aad, G., Brenner, Richard, Buszello, Claus P., Ekelöf, Tord, Ellert, Mattias, Ferrari, Arnaud, Zwalinski, L.
Format: Others
Language:English
Published: Uppsala universitet, Högenergifysik 2011
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-171772
Description
Summary:A search for pair-produced scalar particles decaying to a four-jet final state is presented. The analysis is performed using an integrated luminosity of 34 pb(-1) recorded by the ATLAS detector in 2010. No deviation from the Standard Model is observed. For a scalar mass of 100 GeV (190 GeV) the limit on the scalar gluon pair production cross section at 95% confidence level is 1 nb (0.28 nb). When these results are interpreted as mass limits, scalar-gluons (hyperpions) with masses of 100 to 185 GeV (100 to 155 GeV) are excluded at 95% confidence level with the exception of a mass window of width about 5 GeV (15 GeV) around 140 GeV. === <p>ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1140/epjc/s10052-011-1828-6</p>