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|a Long-range and short-range dihadron angular correlations in central PbPb collisions at √ s NN = 2.76 TeV
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|b Springer Science and Business Media LLC,
|c 2021-09-20T18:22:46Z.
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|z Get fulltext
|u https://hdl.handle.net/1721.1/132510
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|a First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (Δν) and the full range of relative azimuthal angle (Δø). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (Δø y≈ π) azimuthal correlation is observed at all Δν, as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in Δν are observed for particles with similar ø values. This phenomenon, also known as the \ridge", persists up to at least jΔνj = 4. For particles with transverse momenta (pT) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pT = 2-6 GeV/c, and to be much reduced when paired with particles of pT = 10-12 GeV/c. Copyright CERN.
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|a Article
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|t 10.1007/JHEP07(2011)076
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|t Journal of High Energy Physics
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