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Nuclear modification factor of high transverse momentum jets in PbPb collisions at sqrt(sNN) = 2.76 TeV
According to quantum chromodynamics, the liberation of quarks and gluons to create a new form of matter, the quark gluon plasma (QGP), is expected to occur in relativistic heavy-ion collisions at high energies. Partonic interactions at large momentum transfers can be used to study the structure and...
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Publicado: |
2012
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Acceso en línea: | http://cds.cern.ch/record/1472722 |
Sumario: | According to quantum chromodynamics, the liberation of quarks and gluons to create a new form of matter, the quark gluon plasma (QGP), is expected to occur in relativistic heavy-ion collisions at high energies. Partonic interactions at large momentum transfers can be used to study the structure and dynamics of the QGP. Fully reconstructed jets in pp and PbPb collisions at 2.76 TeV center-of-mass energy are analyzed utilizing the CMS detector at the LHC. The nuclear modification factor ($R_{\mathrm{AA}}$) of reconstructed jets of transverse momenta above $100$~GeV/$c$ is found by comparison of PbPb and pp collisions. A nuclear suppression factor of approximately 0.5 is observed in the most central collisions. |
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