|
|
Measurement of the Inclusive ep Scattering Cross Section at low Q2 and x at HERA |
| Reference |
A. Vargas, presented at DIS2007, Spring 2007 |
| Document |
Conference paper or talk
|
| Figures |
(1a)
(1b)
(1c)
(2a)
(2b)
(2c)
(2d)
(3)
(4a)
(4b)
| | Tables |
|
| Contact |
A. Vargas, O. Behrendt, V. Lendermann, M. Klein, S. Glazov |
| Abstract |
A new measurement of the inclusive ep scattering cross section is presented
in the region of low four-momentum transfer squared,
0.2 GeV2 < Q2 < 8.5 GeV2, and low Bjorken x,
4 10-6 < x < 0.02.
The results are based on two data sets collected in dedicated runs by the H1
Collaboration at HERA at beam energies of 27.6 GeV and 920 GeV for positrons
and protons. A combination with data previously published by H1
leads to a scattering cross section measurement of accuracy to a few percent.
The data include the region of high inelasticity y up to 0.85,
which is sensitive to the longitudinal proton structure function FL(x,Q2).
A reconstruction method based on the use of radiative $ep$ scattering events
extends the measurement to lower Q2 and into the domain of larger x.
The data are compared with theoretical models which apply to
the transition region from quasi-real photoproduction to deep
inelastic scattering. |
| Links |
back to overview listing
H1 internal information
| | |