Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 716344.0, MPI für Physik / YB 2016
Production of exclusive dijets in diffractive deep inelastic scattering at HERA
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Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Production of exclusive dijets in diffractive deep inelastic $e^\\pm p$ scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 372 pb$^{-1}$. The measurement was performed for $\\gamma^*-p$ centre-of-mass energies in the range $90 < W < 250$ GeV and for photon virtualities $Q^2 > 25$ GeV$^2$. Energy and transverse-energy flows around the jet axis are presented. The cross section is presented as a function of $\\beta$ and $\\phi$, where $\\beta=x/x_{\\rm I\\!P}$, $x$ is the Bjorken variable and $x_{\\rm I\\!P}$ is the proton fractional longitudinal momentum loss. The angle $\\phi$ is defined by the $\\gamma^*-$dijet plane and the $\\gamma^*-e^\\pm$ plane in the rest frame of the diffractive final state. The $\\phi$ cross section is measured in bins of $\\beta$. The results are compared to predictions from models based on different assumptions about the nature of the diffractive exchange.
Classification / Thesaurus:ZEUS
Comment of the Author/Creator:36 pages, 18 figures
Document Type:Article
Communicated by:MPI für Physik
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