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 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% C.L. the q* mass interval 0.30<m(q*)<1.26 TeV, extending the reach of previous experiments.
Highlights
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 LHC and correspond to an integrated luminosity of 315 nbÀ1 collected by the ATLAS detector
Such new states may include an excited composite quark qÃ, exemplifying quark substructure [1,2,3], an axigluon predicted by chiral color models [4,5], a flavor-universal color-octet coloron [6,7], or a color-octet techni- meson predicted by models of extended technicolor and top-color-assisted technicolor
Summary
A search for new heavy particles manifested as resonances in two-jet final states is presented. Upper limits were set on the product of cross section and signal acceptance for excited-quark (qÃ) production as a function of qà mass.
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