Measurements are presented of the properties of high transverse momentum jets, produced in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=7\mathrm{TeV}$. The data correspond to an integrated luminosity of $35{\mathrm{pb}}^{-1}$ and were collected with the ATLAS detector in 2010. Jet mass, width, eccentricity, planar flow and angularity are measured for jets reconstructed using the anti-$k_t$ algorithm with distance parameters $R=0.6$ and 1.0, with transverse momentum $p_T>300\mathrm{GeV}$ and pseudorapidity $|\eta |<2$. The measurements are compared to the expectations of Monte Carlo generators that match leading-logarithmic parton showers to leading-order, or next-to-leading-order, matrix elements. The generators describe the general features of the jets, although discrepancies are observed in some distributions.

• Received 23 June 2012

DOI:https://doi.org/10.1103/PhysRevD.86.072006

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© 2012 CERN, for the ATLAS Collaboration