ZEUS Neutral Current e+p DIS 1996/97

Figure 1: Schematic view of the ZEUS detector showing those components important for this analysis.

detector_l4.eps

Figure 2: Vertex finding efficiency as a function of the hadronic angle gamma(PT).

vertex_eff.eps

Figure 3: Analysis binning, with (a)purity and (b) acceptance

acc_pur_xq2.eps

Figure 4: Photoproduction background information

php.eps

Figure 5: Distribution of measured quantities, for the low-Q2 sample (left) and the high-Q2 sample (right). The histograms are normalised according to the luminosity.

meas_var_ctrl.eps

Figure 6: Distributions of kinematic variables for the low-Q2 sample (left) and the high-Q2 sample (right). The histograms are normalised according to the luminosity

kin_var_ctrl.eps

Figure 7: a-d) The relative uncorrelated systematic, total systematic, statistical, and total systematic uncertainty. Three regions in Q2 are denoted by different symbols. e-h) Four typical sources of the correlated systematic uncertainty.

uncert_vsy.eps

Figure 8: a) The statistical uncertainty, and b) the systematic uncertainty, shown for the x-Q2 kinematic plane.

uncert_xq2.eps

Figure 9: F2(em) vs. x for fixed Q2
2.7 < Q2 < 18 GeV2

f2vsx_1_bw.eps (black/white)

f2vsx_1_col.eps (color)

Figure 10: F2(em) vs. x for fixed Q2
22 < Q2 < 150 GeV2

f2vsx_2_bw.eps (black/white)

f2vsx_2_col.eps (color)

Figure 11: F2(em) vs. x for fixed Q2
200 < Q2 < 2000 GeV2

f2vsx_3_bw.eps (black/white)

f2vsx_3_col.eps (color)

Figure 12: F2(em) vs. x for fixed Q2
3000 < Q2 < 30000 GeV2

f2vsx_4_bw.eps (black/white)

f2vsx_4_col.eps (color)

Figure 13: F2(em) vs. Q2 for fixed x. The fixed-target results from NMC, BCDMS, and E665 and the ZEUS NLO QCD fit are also shown.

f2vsQ2_allx_bw.eps (black/white)

f2vsQ2_allx_col.eps (color)

Figure 14: F2(em) vs. Q2 for six bins at fixed x, compared with results from NMC, BCDMS, E665, and H1.

f2vsQ2_fewx_bw.eps (black/white)

f2vsQ2_fewx_col.eps (color)