HEPData

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;.
https://www.hepdata.net/record/data/53038yaml https://www.hepdata.net/record/data/53038/csvcsv
Table 2

Data from T 2,F 1B

10.17182/hepdata.60556.v1/t2

The measured differential distribution in the two-photon transverse momentum;.
https://www.hepdata.net/record/data/53039yaml https://www.hepdata.net/record/data/53039/csvcsv
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;.
https://www.hepdata.net/record/data/53040yaml https://www.hepdata.net/record/data/53040/csvcsv
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;.
https://www.hepdata.net/record/data/53042yaml https://www.hepdata.net/record/data/53042/csvcsv
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;.
https://www.hepdata.net/record/data/53044yaml https://www.hepdata.net/record/data/53044/csvcsv
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;.
https://www.hepdata.net/record/data/53046yaml https://www.hepdata.net/record/data/53046/csvcsv
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;.
https://www.hepdata.net/record/data/53048yaml https://www.hepdata.net/record/data/53048/csvcsv
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;.
https://www.hepdata.net/record/data/53049yaml https://www.hepdata.net/record/data/53049/csvcsv
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;.
https://www.hepdata.net/record/data/53051yaml https://www.hepdata.net/record/data/53051/csvcsv
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;.
https://www.hepdata.net/record/data/53053yaml https://www.hepdata.net/record/data/53053/csvcsv

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