|
|
Prompt photons in photoproduction at HERA II |
| Reference |
Preliminiary for DIS2008, March 2008 |
| Document |
Conference paper or talk
|
| Figures |
(1)
(2)
(3)
(3a)
(3b)
(4)
(4a)
(4b)
(5)
(5a)
(5b)
(6)
(6a)
(6b)
| | Tables |
|
| Contact |
K. Nowak, K. Mueller |
| Abstract |
A measurement of prompt photons in photoproduction in ep collisions with the H1
detector is presented. The analysis is based on the data taken in the years 2004-2007, corresponding to a total integrated luminosity of $340 pb^{-1}$. The photon signal is extracted using a multivariate analysis based on calorimeter cluster different shower shape variables. Inclusive and exclusive cross sections are presented as a function of the transverse energy $E_T^\gamma$ in the range 5 to 15 GeV and the pseudorapidity $ta^\gamma$ in the range -1.0 to 2.4. The momentum fractions $x_\gamma$ and $x_{proton}$ of the incident photon and proton carried by the constituents participating in the hard scattering process are measured as well. The results are compared to predictions from theoretical calculations. |
| Links |
back to overview listing
H1 internal information
| | |