European Physical Journal C: Particles and Fields, Vol 71, Iss 12, Pp 1-19 (2011)
Publisher Information:
SpringerOpen, 2011.
Publication Year:
2011
Collection:
LCC:Astrophysics; LCC:Nuclear and particle physics. Atomic energy. Radioactivity
Subject Terms:
Astrophysics; QB460-466; Nuclear and particle physics. Atomic energy. Radioactivity; QC770-798
Description:
Abstract 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.