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Study of $\pi^0$ pair production in single-tag two-photon collisions

The collaboration
Phys.Rev. D93 (2016) 032003, 2016

Abstract (data abstract)
KEK-KEKB. Measurement of the differential cross section of $\pi^0$ pair production in single-tag two-photon collisions. The cross section is measured for $Q^2$ up to 30 GeV$^2$ in the kinematic range 0.5 GeV < $W$ <2.1 GeV and $|\cos\theta^*|$<1.0. The results are based on a data sample of 759 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The transition form factor of the $f_0(980)$ and that of the $f_2(1270)$ with the helicity-0, -1, and -2 components separately are measured.

• #### Table 1

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t1

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=3.45 GeV$^2$.

• #### Table 2

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t2

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=4.46 GeV$^2$.

• #### Table 3

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t3

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=5.47 GeV$^2$.

• #### Table 4

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t4

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=6.89 GeV$^2$.

• #### Table 5

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t5

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=8.92 GeV$^2$.

• #### Table 6

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t6

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=10.93 GeV$^2$.

• #### Table 7

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t7

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=13.37 GeV$^2$.

• #### Table 8

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t8

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=17.23 GeV$^2$.

• #### Table 9

Data from Figure 23, 26, 28, 29, 30, 31, and 32

10.17182/hepdata.71443.v1/t9

$W$ dependence of the differential cross section ${\rm d}\sigma/{\rm d}|\cos\theta^*|$ in five $|\cos\theta^*|$ bins for $Q^2$=24.25 GeV$^2$.

• #### Table 10

Data from Figure 22

10.17182/hepdata.71443.v1/t10

$W$ dependence of the integrated cross section in nine $Q^2$ bins.