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Measurement of the differential cross sections for isolated direct photon pair production in $p \bar p$ collisions at $\sqrt{s} = 1.96$ TeV

The D0 collaboration
Phys.Lett. B725 (2013) 6-14, 2013

Abstract (data abstract)
Fermilab-Tevatron. Measurements of the differential distributions of isolated direct photon pair production in antiproton-proton collisions at a centre-of-mass energy of 1.96 TeV. The data sample, with integrated luminosity 8.5 fb-1, is used to determine the photon pair differential mass distribution (DSIG/DMT), the transverse momentum distribution (DSIG/DPT), the distribution in the azimuthal angle between the two photons (DSIG/D(PHI1-DPHI2) and the polar scattering angle angle distribution in the Collins-Soper frame (DSIG/D|COS(THETA*)|. The measurements require isolated photons with PT > 18 (17) for the leading (next-to-leading) photons having |eta|<0.9 and separation from each other in eta-phi space > 0.4.

  • Table 1

    Data from T 2,F 1A

    10.17182/hepdata.60556.v1/t1

    The measured differential distribution in the two-photon mass;.

  • Table 2

    Data from T 2,F 1B

    10.17182/hepdata.60556.v1/t2

    The measured differential distribution in the two-photon transverse momentum;.

  • Table 3

    Data from T 3,F 1C

    10.17182/hepdata.60556.v1/t3

    The measured differential distribution in the azimuthal angular separation of the two photons;.

  • Table 4

    Data from T 3,F 1D

    10.17182/hepdata.60556.v1/t4

    The measured differential distribution in the polar scattering angle in the Collins-Soper frame;.

  • Table 5

    Data from T 4,F 2A

    10.17182/hepdata.60556.v1/t5

    The measured differential distribution in the two-photon mass for |azimuthal angle separation| < PI/2;.

  • Table 6

    Data from T 4,F 2B

    10.17182/hepdata.60556.v1/t6

    The measured differential distribution in the two-photon transverse momentum for |azimuthal angle separation| < PI/2;.

  • Table 7

    Data from T 4,F 2C

    10.17182/hepdata.60556.v1/t7

    The measured differential distribution in the polar scattering angle in the Collins-Soper frame for |azimuthal angle separation| < PI/2;.

  • Table 8

    Data from T 5,F 3A

    10.17182/hepdata.60556.v1/t8

    The measured differential distribution in the two-photon mass for |azimuthal angle separation| > PI/2;.

  • Table 9

    Data from T 5,F 3B

    10.17182/hepdata.60556.v1/t9

    The measured differential distribution in the two-photon transverse momentum for |azimuthal angle separation| > PI/2;.

  • Table 10

    Data from T 5,F 3C

    10.17182/hepdata.60556.v1/t10

    The measured differential distribution in the polar scattering angle in the Collins-Soper frame for |azimuthal angle separation| > PI/2;.

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