Measurement of the proton structure function F2 at very low Q**2 at HERA.

The ZEUS collaboration
Phys.Lett.B 487 (2000) 53-73, 2000.

Abstract (data abstract)
DESY-HERA. Measurement of the proton structure function, F2, at very low X and Q**2. The range in Q**2 is from 0.045 to 0.65 GeV**2 and in X is from 6*10**-7 to 1*10**-3. The data come from collisions of 27.5 GeV positrons and 820 GeV protons with an integrated luminosity of 3.9 pb-1 taken during a six week running period in 1997 with dedicated triggers. This measurement uses the Beam Pipe Calorimeter (BPC) and Beam Pipe Tracker (BPT) to detect the scattered positrons. The BPT was installed in 1997 to compliment the BPC with precise tracking information.

  • Table 1

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t1

    Measured values of F2 at Q**2 = 0.045 GeV**2 as a function of X.

  • Table 2

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t2

    Measured values of F2 at Q**2 = 0.065 GeV**2 as a function of X.

  • Table 3

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t3

    Measured values of F2 at Q**2 = 0.085 GeV**2 as a function of X.

  • Table 4

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t4

    Measured values of F2 at Q**2 = 0.110 GeV**2 as a function of X.

  • Table 5

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t5

    Measured values of F2 at Q**2 = 0.150 GeV**2 as a function of X.

  • Table 6

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t6

    Measured values of F2 at Q**2 = 0.200 GeV**2 as a function of X.

  • Table 7

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t7

    Measured values of F2 at Q**2 = 0.250 GeV**2 as a function of X.

  • Table 8

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t8

    Measured values of F2 at Q**2 = 0.300 GeV**2 as a function of X.

  • Table 9

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t9

    Measured values of F2 at Q**2 = 0.400 GeV**2 as a function of X.

  • Table 10

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t10

    Measured values of F2 at Q**2 = 0.500 GeV**2 as a function of X.

  • Table 11

    Data from T 1,F 3

    10.17182/hepdata.46969.v1/t11

    Measured values of F2 at Q**2 = 0.650 GeV**2 as a function of X.

  • Table 12

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t12

    Measured values of F2 at Y = 0.007 as a function of Q**2.

  • Table 13

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t13

    Measured values of F2 at Y = 0.015 as a function of Q**2.

  • Table 14

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t14

    Measured values of F2 at Y = 0.025 as a function of Q**2.

  • Table 15

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t15

    Measured values of F2 at Y = 0.050 as a function of Q**2.

  • Table 16

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t16

    Measured values of F2 at Y = 0.120 as a function of Q**2.

  • Table 17

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t17

    Measured values of F2 at Y = 0.200 as a function of Q**2.

  • Table 18

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t18

    Measured values of F2 at Y = 0.260 as a function of Q**2.

  • Table 19

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t19

    Measured values of F2 at Y = 0.330 as a function of Q**2.

  • Table 20

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t20

    Measured values of F2 at Y = 0.400 as a function of Q**2.

  • Table 21

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t21

    Measured values of F2 at Y = 0.500 as a function of Q**2.

  • Table 22

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t22

    Measured values of F2 at Y = 0.600 as a function of Q**2.

  • Table 23

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t23

    Measured values of F2 at Y = 0.700 as a function of Q**2.

  • Table 24

    Data from T 1,F 4

    10.17182/hepdata.46969.v1/t24

    Measured values of F2 at Y = 0.800 as a function of Q**2.

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