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Study of Multiple Interactions In photoproduction at HERA |
| Reference |
aiming for publication summer 2008, |
| Figures |
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| Contact |
Analysis webpage |
| Abstract |
Photoproduction data of HERA-I are analyzed by requiring dijets with
transverse momenta of at least 5 GeV. The two jets define in azimuth a
towards region (leading jet) and an away region (2nd jet) and
transverse regions between them. The charged particle multiplicity is
measured in these regions as a function of the variables x_gamma,
P_t(leading jet) and W_gammap. Models which include contributions of
multiparton interactions are able to describe the measurement, whereas
predictions without them lie below the measurements, especially at low
x_gamma, the region of enhanced contributions from the resolved photon. |
| Links |
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