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Dijet azimuthal correlations and conditional yields in pp and p+Pb collisions at sNN=5.02TeV with the ATLAS detector

The ATLAS collaboration
Phys.Rev.C 100 (2019) 034903, 2019.

Abstract (data abstract)
CERN-LHC. The forward-forward and forward-central dijet azimuthal angular correlations and conditional yields are measured in Pb+Pb and pp collisions with the ATLAS detector at the LHC. The measurement is performed as a function of jets transverse momentum and rapidity. The analysis utilises an integrated luminosity of 25 pb^{-1} of pp data and 360 ub^{-1} of Pb+Pb data collected in 2015 and 2016, respectively, at the same centre-of-mass energy of 5.02 TeV per colliding nucleon pair. The measurement is performed in the center-of-mass frame of the nucleon-nucleon system in the rapidity range between -4.0 and 4.0 using the two highest transverse momentum jets in each event, with the highest transverse momentum jet restricted to the forward rapidity range. No significant broadening of azimuthal angular correlations is observed for forward-forward or forward-central dijets in p+Pb compared to p+p collisions. For forward-forward jet pairs in the proton-going direction, the ratio of conditional yields in p+Pb collisions to those in pp collisions is suppressed by approximately 20%, with no significant dependence on the transverse momentum of the dijet system. No modification of conditional yields is observed for forward-central dijets.

  • Table 1

    Data from Page 11 of preprint

    10.17182/hepdata.93905.v1/t1

    Unfolded azimuthal angular correlation distributions. Black markers represent p+Pb, red markers p+p

  • Table 2

    Data from Page 12 (left column) of preprint

    10.17182/hepdata.93905.v1/t2

    Unfolded width of azimuthal angular correlation distributions. Full markers represent p+Pb, open markers p+p

  • Table 3

    Data from Page 12 (right column) of preprint

    10.17182/hepdata.93905.v1/t3

    Unfolded Dijet conditional yields. Full markers represent p+Pb, open markers p+p

  • Table 4

    Data from Page 13 (top) of preprint

    10.17182/hepdata.93905.v1/t4

    Ratio of unfolded width of azimuthal angular correlation distributions (P PB/ P P). Different colors correspond to different combinations of...

  • Table 5

    Data from Page 13 (bottom) of preprint

    10.17182/hepdata.93905.v1/t5

    Ratio of unfolded Dijet conditional yields (P PB/ P P). Different colors correspond to different combinations of p_{T,1} and p_{T,2}

  • Table 6

    Data from Page 14 (left column) of preprint

    10.17182/hepdata.93905.v1/t6

    Unfolded width of azimuthal angular correlation distributions (Delta p_{T} > 3). Full markers represent p+Pb, open markers p+p

  • Table 7

    Data from Page 14 (right column) of preprint

    10.17182/hepdata.93905.v1/t7

    Unfolded Dijet conditional yields (Delta p_{T} > 3). Full markers represent p+Pb, open markers p+p

  • Table 8

    Data from Page 15 (top) of preprint

    10.17182/hepdata.93905.v1/t8

    Ratio of unfolded width of azimuthal angular correlation distributions (P PB/ P P) (Delta p_{T} > 3). Different colors correspond...

  • Table 9

    Data from Page 15 (bottom) of preprint

    10.17182/hepdata.93905.v1/t9

    Ratio of unfolded Dijet conditional yields (P PB/ P P) (Delta p_{T} > 3). Different colors correspond to different combinations...

  • Table 10

    Data from Auxiliary Figures (01,02,03,04,05)(a,b,c,d,e,f) of https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2017-06/

    10.17182/hepdata.93905.v1/t10

    Unfolded azimuthal angular correlation distributions. Black markers represent p+Pb, red markers p+p

  • Table 11

    Data from Auxiliary Figures (06,07,08,09,10)(a,b,c,d,e,f) of https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2017-06/

    10.17182/hepdata.93905.v1/t11

    Unfolded azimuthal angular correlation distributions (Delta p_{T} > 3). Black markers represent p+Pb, red markers p+p

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