Europhysics Conference on High-Energy Physics 2011

Measurement of three-jet differential cross sections Undefined control sequence \boldsymbol in Undefined control sequence \boldsymbol collisions at Undefined control sequence \boldsymbol TeV

21 juil. 2011, 11:00

15m

Bayard (Alpes Congrès - Alpexpo)

Parallel session talk QCD QCD

Orateur

Dr Peter Svoisky (University of Oklahoma)

Description

We present the first measurement of the inclusive three-jet differential cross section as a function of the invariant mass of the three jets with the largest transverse momenta in an event in $p\overline{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$. The measurement is made in different rapidity regions and for different jet transverse momentum requirements and is based on a data set corresponding to an integrated luminosity of $0.7{\mathrm{fb}}^{-1}$ collected with the D0 detector at the Fermilab Tevatron Collider. The results are used to test the three-jet matrix elements in perturbative QCD calculations at next-to-leading order in the strong coupling constant. The data allow discrimination between parametrizations of the parton distribution functions of the proton.

Documents de présentation

Transparents

EPS_3jet_xsect_psvoisky.pdf