Multi-parton interactions and rapidity gap survival probability in jet-gap-jet processes

Abstract

We discuss an application of dynamical multi-parton interaction model, tuned to measurements of underlying event topology, for a description of destroying rapidity gaps in the jet-gap-jet processes at the LHC. We concentrate on the dynamical origin of the mechanism of destroying the rapidity gap. The cross section for jet-gap-jet is calculated within LL BFKL approximation. We discuss the topology of final states without and with the MPI effects. We discuss some examples of selected kinematical situations (fixed jet rapidities and transverse momenta) as distributions averaged over the dynamics of the jet-gap-jet scattering. The color-singlet ladder exchange amplitude for the partonic subprocess is implemented into the \textsc{Pythia 8} generator, which is then used for hadronisation and for the simulation of the MPI effects. Several differential distributions are shown and discussed. We present the ratio of cross section calculated with and without MPI effects as a function of rapidity gap in between the jets.

18 pages, 10 figures

References in corpus (10)

• An Introduction to PYTHIA 8.2
• Event generator tunes obtained from underlying event and multiparton scattering measurements
• A standard format for Les Houches Event Files
• LHC Forward Physics
• Helicity in Proton-Proton Elastic Scattering and the Spin Structure of the Pomeron
• Central exclusive diffractive production of ${\pi }^{+}{\pi }^{-}$ continuum, scalar and tensor resonances in $pp$ and $p\bar{p}$ scattering within tensor pomeron approach
• Gaps between jets in hadronic collisions
• Gaps between jets at hadron colliders in the next-to-leading BFKL framework
• Proceedings of the Sixth International Workshop on Multiple Partonic Interactions at the Large Hadron Collider
• Single- and central-diffractive production of open charm and bottom mesons at the LHC: theoretical predictions and experimental capabilities

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• Next-to-leading BFKL evolution for dijets with large rapidity separation at different LHC energies
• Central exclusive production of scalar and pseudoscalar charmonia in the light-front $k_T$-factorization approach
• Jets separated by a large pseudorapidity gap at the Tevatron and at the LHC
• Exclusive and semiexclusive production of ${\mu }^{+}{\mu }^{-}$ pairs with $\Delta$ isobars and other resonances in the final state and the size of absorption effects
• First computation of Mueller Tang processes using the full NLL BFKL approach
• Single-diffractive production of dijets within the $k_t$-factorization approach