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Medium modification of photon-tagged and inclusive jets in high-multiplicity proton-proton collisions
1L.D. Landau Institute for Theoretical Physics, GSP-1, 117940, Kosygina street 2, 117334 Moscow, Russia.
Abstract:
We study modification of the photon-tagged and inclusive jets in pp collisions at sqrt[s]=7 TeV due to mini-quark-gluon plasma which can be produced in high multiplicity events. We show that for underlying events with dN(ch)/dη∼20-60 the medium effects lead to a considerable modification of the photon-tagged and inclusive jet fragmentation functions. For inclusive jets, the magnitude of the effect is surprisingly large. The effect is quite strong even for typical underlying events. We find that the spectrum of charged hadrons is suppressed by ∼35%-40% at p(T)∼5-10 GeV.
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