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High-statistics measurement of neutral pion-pair production in two-photon collisions

The Belle collaboration
Phys.Rev. D78 (2008) 052004, 2008

Abstract (data abstract)
KEK-KEKB Collider. Measurement of the differential and total cross sections for PI0 PI0 production in two-photon collisions in the W range from 0.6 to 4.0 GeV and range of absolute(cos(theta*)) less than 0.8. The data sample comes from 95 pb-1 of E+ E- interactions around the Upsilon region (83 fb-1 at 10.58 GeV, 9 fb-1 at 10.52 GeV, 2.9 fb-1 at 10.36 GeV and 0.3 fb-1 at 10.30 GeV). The data at the different energies are combined introducing an error of less than 0.5% on the cross sections.. Numerical values supplied by S Uehara.

  • Table 1

    Data from F 7

    10.17182/hepdata.50151.v1/t1

    Differential cross section for W = 0.61, 0.63 and 0.65 GeV.

  • Table 2

    Data from F 7

    10.17182/hepdata.50151.v1/t2

    Differential cross section for W = 0.67, 0.69 and 0.71 GeV.

  • Table 3

    Data from F 7

    10.17182/hepdata.50151.v1/t3

    Differential cross section for W = 0.73, 0.75 and 0.77 GeV.

  • Table 4

    Data from F 7

    10.17182/hepdata.50151.v1/t4

    Differential cross section for W = 0.79, 0.81 and 0.83 GeV.

  • Table 5

    Data from F 7

    10.17182/hepdata.50151.v1/t5

    Differential cross section for W = 0.85, 0.87 and 0.89 GeV.

  • Table 6

    Data from F 7

    10.17182/hepdata.50151.v1/t6

    Differential cross section for W = 0.91, 0.93 and 0.95 GeV.

  • Table 7

    Data from F 7

    10.17182/hepdata.50151.v1/t7

    Differential cross section for W = 0.97, 0.99 and 1.01 GeV.

  • Table 8

    Data from F 7

    10.17182/hepdata.50151.v1/t8

    Differential cross section for W = 1.03, 1.05 and 1.07 GeV.

  • Table 9

    Data from F 7

    10.17182/hepdata.50151.v1/t9

    Differential cross section for W = 1.09, 1.11 and 1.13 GeV.

  • Table 10

    Data from F 7

    10.17182/hepdata.50151.v1/t10

    Differential cross section for W = 1.15, 1.17 and 1.19 GeV.

  • Table 11

    Data from F 7

    10.17182/hepdata.50151.v1/t11

    Differential cross section for W = 1.21, 1.23 and 1.25 GeV.

  • Table 12

    Data from F 7

    10.17182/hepdata.50151.v1/t12

    Differential cross section for W = 1.27, 1.29 and 1.31 GeV.

  • Table 13

    Data from F 7

    10.17182/hepdata.50151.v1/t13

    Differential cross section for W = 1.33, 1.35 and 1.37 GeV.

  • Table 14

    Data from F 7

    10.17182/hepdata.50151.v1/t14

    Differential cross section for W = 1.39, 1.41 and 1.43 GeV.

  • Table 15

    Data from F 7

    10.17182/hepdata.50151.v1/t15

    Differential cross section for W = 1.45, 1.47 and 1.49 GeV.

  • Table 16

    Data from F 7

    10.17182/hepdata.50151.v1/t16

    Differential cross section for W = 1.51, 1.53 and 1.55 GeV.

  • Table 17

    Data from F 7

    10.17182/hepdata.50151.v1/t17

    Differential cross section for W = 1.57, 1.59 and 1.62 GeV.

  • Table 18

    Data from F 7

    10.17182/hepdata.50151.v1/t18

    Differential cross section for W = 1.66, 1.70 and 1.74 GeV.

  • Table 19

    Data from F 7

    10.17182/hepdata.50151.v1/t19

    Differential cross section for W = 1.78, 1.82 and 1.86 GeV.

  • Table 20

    Data from F 7

    10.17182/hepdata.50151.v1/t20

    Differential cross section for W = 1.90, 1.94 and 1.98 GeV.

  • Table 21

    Data from F 7

    10.17182/hepdata.50151.v1/t21

    Differential cross section for W = 2.02, 2.06 and 2.10 GeV.

  • Table 22

    Data from F 7

    10.17182/hepdata.50151.v1/t22

    Differential cross section for W = 2.14, 2.18 and 2.22 GeV.

  • Table 23

    Data from F 7

    10.17182/hepdata.50151.v1/t23

    Differential cross section for W = 2.26, 2.30 and 2.34 GeV.

  • Table 24

    Data from F 7

    10.17182/hepdata.50151.v1/t24

    Differential cross section for W = 2.38, 2.45 and 2.55 GeV.

  • Table 25

    Data from F 7

    10.17182/hepdata.50151.v1/t25

    Differential cross section for W = 2.65, 2.75 and 2.85 GeV.

  • Table 26

    Data from F 7

    10.17182/hepdata.50151.v1/t26

    Differential cross section for W = 2.95, 3.05 and 3.15 GeV.

  • Table 27

    Data from F 7

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    Differential cross section for W = 3.25, 3.65 and 3.75 GeV.

  • Table 28

    Data from F 7

    10.17182/hepdata.50151.v1/t28

    Differential cross section for W = 3.85 and 3.95 GeV.

  • Table 29

    Data from F 8

    10.17182/hepdata.50151.v1/t29

    Total cross section for the cos(theta*) ranges 0.0 to 0.6 and 0.0 to 0.8.

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