Measurement of the forward energy flow in pp collisions at sqrt(s)=7 TeV

Abstract

The energy flow created in pp collisions at sqrt(s)=7 TeV is studied within the pseudorapidity range 1.9<eta<4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive minimum-bias interactions, hard scattering processes and events with an enhanced or suppressed diffractive contribution. The results are compared to predictions given by PYTHIA-based and cosmic-ray event generators, which provide different models of soft hadronic interactions.

17 pages, 4 figures. Minor changes implemented after journal acceptance

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• PYTHIA 6.4 Physics and Manual
• Status of QGSJET
• Evidence for the decay $B^0\to J/\psi \omega$ and measurement of the relative branching fractions of $B_s^0$ meson decays to $J/\psi \eta$ and $J/\psi {\eta }^{{}^{\prime }}$
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• Measurement of charged particle multiplicities and densities in $pp$ collisions at $\sqrt{s}=7$TeV in the forward region
• Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the energy density as a function of pseudorapidity in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Forming Molecular States with Hadronic Rescattering
• Energy deposition studies for the High-Luminosity Large Hadron Collider inner triplet magnets
• Study of Monte Carlo event generators for proton-proton collisions at LHC energies in the forward region
• Soft QCD Measurements at LHCb
• Investigating the influence of diffractive interactions on ultra - high energy extensive air showers
• Impact of LHC Run-1 on particle astrophysics
• Forward physics with the LHCb experiment