Dergi makalesi Açık Erişim
CERN İşbirliği
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"description": "<p>The transverse momentum ( pT ) spectrum and nuclear modification factor ( RAA ) of reconstructed jets in 0\u201310% and 10\u201330% central Pb\u2013Pb collisions at sNN=2.76 TeV were measured. Jets were reconstructed using the anti- kT jet algorithm with a resolution parameter of R=0.2 from charged and neutral particles, utilizing the ALICE tracking detectors and Electromagnetic Calorimeter (EMCal). The jet pT spectra are reported in the pseudorapidity interval of |\u03b7jet|<0.5 for 40<pT,jet<120 GeV/c in 0\u201310% and for 30<pT,jet<100 GeV/c in 10\u201330% collisions. Reconstructed jets were required to contain a leading charged particle with pT>5 GeV/c to suppress jets constructed from the combinatorial background in Pb\u2013Pb collisions. The leading charged particle requirement applied to jet spectra both in pp and Pb\u2013Pb collisions had a negligible effect on the RAA . The nuclear modification factor RAA was found to be 0.28\u00b10.04 in 0\u201310% and 0.35\u00b10.04 in 10\u201330% collisions, independent of pT,jet within the uncertainties of the measurement. The observed suppression is in fair agreement with expectations from two model calculations with different approaches to jet quenching.</p>",
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"title": "Measurement of jet suppression in central Pb\u2013Pb collisions at sNN=2.76 TeV"
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