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Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at root sNN=5.02TeV

Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Eroe, J.; Flechl, M.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hartl, C.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Koenig, A.; Kraetschmer, I.; Liko, D.; Liko, D.


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{
  "DOI": "10.1016/j.physletb.2017.06.053", 
  "abstract": "The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of root sNN= 5.02 TeV, as well as results from charm quark jets in proton-proton (pp) collisions at root s=2.76and 5.02TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400GeV/cin pPb collisions at root sNN=5.02 TeV of R-pA= 0.92 +/- 0.07 (stat) +/- 0.11(syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at root s=2.76 and 5.02TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c. (C) 2017 The Author(s). Published by Elsevier B.V.", 
  "author": [
    {
      "family": "Sirunyan", 
      "given": " A. M."
    }, 
    {
      "family": "Tumasyan", 
      "given": " A."
    }, 
    {
      "family": "Adam", 
      "given": " W."
    }, 
    {
      "family": "Asilar", 
      "given": " E."
    }, 
    {
      "family": "Bergauer", 
      "given": " T."
    }, 
    {
      "family": "Brandstetter", 
      "given": " J."
    }, 
    {
      "family": "Brondolin", 
      "given": " E."
    }, 
    {
      "family": "Dragicevic", 
      "given": " M."
    }, 
    {
      "family": "Eroe", 
      "given": " J."
    }, 
    {
      "family": "Flechl", 
      "given": " M."
    }, 
    {
      "family": "Friedl", 
      "given": " M."
    }, 
    {
      "family": "Fruehwirth", 
      "given": " R."
    }, 
    {
      "family": "Ghete", 
      "given": " V. M."
    }, 
    {
      "family": "Hartl", 
      "given": " C."
    }, 
    {
      "family": "Hoermann", 
      "given": " N."
    }, 
    {
      "family": "Hrubec", 
      "given": " J."
    }, 
    {
      "family": "Jeitler", 
      "given": " M."
    }, 
    {
      "family": "Koenig", 
      "given": " A."
    }, 
    {
      "family": "Kraetschmer", 
      "given": " I."
    }, 
    {
      "family": "Liko", 
      "given": " D."
    }, 
    {
      "family": "Liko", 
      "given": " D."
    }
  ], 
  "container_title": "PHYSICS LETTERS B", 
  "id": "47637", 
  "issued": {
    "date-parts": [
      [
        2017, 
        1, 
        1
      ]
    ]
  }, 
  "page": "306-329", 
  "title": "Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at root sNN=5.02TeV", 
  "type": "article-journal", 
  "volume": "772"
}
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