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arxiv: 1108.1705 · v2 · pith:BFINYH4Jnew · submitted 2011-08-08 · ✦ hep-ph · hep-ex

Underlying Event in pp Collisions at LHC Energies

classification ✦ hep-ph hep-ex
keywords collisionseventhadronidentifiedjetsoriginalproductionunderlying
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Hadron production is investigated in proton-proton (pp) collisions at \surds = 7 TeV LHC energy - especially outside the cones of identified jets. We improved the original CDF definition of underlying event and introduce surrounding rings/belts (SB) around the cone of identified jets. We compare the characteristics of hadron production using the original CDF-based and the new SB-based via analysing PYTHIA generated fluxes of these hadrons within the geometrical regions of pp collisions.

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