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90555 |
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|a dc
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|a Krajczar, Krisztian F.
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|a Massachusetts Institute of Technology. Department of Physics
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|a Krajczar, Krisztian F.
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|a Measurement of charged particle R[subscript AA] at high p[subscript T] in PbPb collisions at √s[subscript NN] = 2.76 TeV with CMS
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|b Elsevier,
|c 2014-10-02T18:31:18Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/90555
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|a Charged particle transverse momentum (p[subscript T]) spectra have been measured by CMS for pp and PbPb collisions at the same √sNN = 2.76 TeV collision energy per nucleon pairs. Calorimeter-based jet triggers are employed to enhance the statistical reach of the high-p[subscript T] measurements. The nuclear modification factor (R[subscript AA]) is obtained in bins of collision centrality for the PbPb data sample dividing by the measured pp reference spectrum. In the range p[subscript T] = 5 - 10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7. At higher p[subscript T], this suppression is significantly reduced, approaching a factor of 2 for particles with p[subscript T] = 40 - 100 GeV.
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|a en_US
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|a Article
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|t Nuclear Physics A
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