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Journal Article/Internal Report | PUBDB-2016-00753 |
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2016
Springer
Berlin
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Please use a persistent id in citations: doi:10.1140/epjc/s10052-015-3849-z
Report No.: DESY-15-070; arXiv:1505.05783
Abstract: 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 $90< W < {250}\,{\mathrm{GeV}}$ and for photon virtualities $Q^2 > {25}\,{\mathrm{GeV}^{2}}$ . Energy flows around the jet axis are presented. The cross section is presented as a function of $\beta $ and $\phi $ , where $\beta =x/x_\mathrm{I\!P}$ , x is the Bjorken variable and $x_\mathrm{I\!P}$ 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.
Keyword(s): cross section: measured ; diffraction ; dijet: production ; deep inelastic scattering ; DESY HERA Stor ; longitudinal momentum ; transverse energy ; fractional ; scattering ; Bjorken ; photon ; flow ; ZEUS ; experimental results ; statistical analysis ; electron p --> electron jet jet p
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Preprint/Report
Production of Exclusive Dijets in Diffractive Deep Inelastic Scattering at HERA
[10.3204/PUBDB-2015-02122]
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