CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PROC-2010-140 ; arXiv:1012.1830
Title	Search for New Particles in 2-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC
Author(s)	Cheung, Sing-Leung (Toronto U.)
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2010
Imprint	07 Dec 2010
Number of pages	3
In:	Hadron Collider Physics Symposium 2010, Toronto, Ontario, Canada, 23 - 27 Aug 2010
Subject category	Detectors and Experimental Techniques ; Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	dijet mass, resonance, excited quark ; EXOTICS
Abstract	A search for new heavy particles manifested as resonances in two-jet final states is presented. The data were produced in 7 TeV proton-proton collisions by the Large Hadron Collider (LHC) and correspond to an integrated luminosity of 315 nb−1 collected by the ATLAS detector. No resonances were observed. Upper limits were set on the product of cross section and signal acceptance for excited-quark (q*) production as a function of q* mass. These exclude at the 95% CL the q* mass interval 0.30 < m(q*) < 1.26 TeV, extending the reach of previous experiments.
Copyright/License	Preprint: (License: CC-BY-4.0)

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