Elastic and diffractive scattering in the LHC era

Abstract

We review elastic and diffractive scattering of protons (called also "forward physics") with emphasis on the LHC data, especially those deviating from the expectations based on extrapolations from earlier measurements at the ISR, Fermilab and thus triggering searches for new ideas, models and theories. We list these new data and provide a brief introduction of available theoretical approaches, mainly those based on analyticity, crossing symmetry and unitarity, particularly the Regge-pole model realizing these concepts. Fits to the data are presented and tensions between theoretical predictions and the data that may indicate the way to further progress are in the focus of our paper.

45 pages, 38 figures, 2 tables

References in corpus (39)

• The Physics of Ultraperipheral Collisions at the LHC
• Coherent gamma-gamma and gamma-A interactions in very peripheral collisions at relativistic ion colliders
• Measurement of the proton-air cross-section at $\sqrt{s}=57$ TeV with the Pierre Auger Observatory
• Measurement of the total cross section from elastic scattering in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Evidence for non-exponential elastic proton-proton differential cross-section at low |t| and sqrt(s) = 8 TeV by TOTEM
• Measurement of the total cross section from elastic scattering in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Hadronic scattering amplitudes: medium-energy constraints on asymptotic behaviour
• Measurement of Elastic pp Scattering at $\sqrt{s}$ = 8 TeV in the Coulomb-Nuclear Interference Region - Determination of the $\rho$-Parameter and the Total Cross-Section
• Did TOTEM experiment discover the Odderon?
• $pp$ and $\bar{p}p$ total cross sections and elastic scattering
• Elastic scattering and Diffractive dissociation in the light of LHC data
• Elastic pp scattering from the optical point to past the dip: an empirical parametrization from ISR to LHC
• High Energy Elastic and Diffractive Cross Sections
• Photoproduction of vector mesons in the Soft Dipole Pomeron model
• The Pomeron and Odderon in elastic, inelastic and total cross sections at the LHC
• Photo-production of psi' Mesons at HERA
• Analytic model of Regge trajectories
• Central exclusive production at RHIC
• A Deeply Virtual Compton Scattering Amplitude
• Shape of Proton and the Pion Cloud
• Dual-Regge Approach to High-Energy, Low-Mass Diffraction Dissociation
• Unifying "soft" and "hard" diffractive exclusive vector meson production and deeply virtual Compton scattering
• Resonance production in Pomeron-Pomeron collisions at the LHC
• Unitarity, (anti)shadowing and the black disc limit
• A Kinematically Complete Analysis of the CLAS data on the Proton Structure Function $F_2$ in a Regge-Dual model
• Reggeometry of deeply virtual Compton scattering (DVCS) and exclusive vector meson production (VMP) at HERA
• Exclusive diffractive production of real photons and vector mesons in a factorized Regge-pole model with non-linear Pomeron trajectory
• Can the "standard" unitarized Regge models describe the TOTEM data?
• Bounds on the rise of total cross section from LHC7 and LHC8 data
• The new elastic scattering measurements of TOTEM --- are there hints for asymptotics?
• Exclusive diffractive resonance production in proton-proton collisions at high energies
• Vector meson production in ultra-peripheral collisions at the LHC
• Structures in the diffraction cone: the "break" and "dip" in high-energy proton-proton scattering
• Pomeron intercept and slope: the QCD connection
• The hard Pomeron impact on the high-energy elastic scattering of nucleons
• Central exclusive production at the Tevatron
• Three Pomerons vs DO and TOTEM Data
• Fine structure of the diffraction cone: manifestation of t channel unitarity
• Does diffraction cone shrinkage with energy originate from unitarity?

Cited by in corpus (11)

• Pomeron and Reggeon contributions to elastic proton-proton and proton-antiproton scattering in holographic QCD
• Soft-photon radiation in high-energy proton-proton collisions within the tensor-Pomeron approach: Bremsstrahlung
• Two-Pomeron eikonal approximation for the high-energy EDS of nucleons
• An approach to the leading Regge pole
• Spin and Polarization in High-Energy Hadron-Hadron and Lepton-Hadron Scattering
• Regge phenomenology and coherent photoproduction of charmonium in peripheral heavy ion collisions
• Deeply virtual Compton scattering in the tensor-pomeron approach
• Investigating exclusive ${\rho }^0$ photoproduction within the Regge phenomenology approach
• Direct-channel option of the forward slope increase
• Light vector meson photoproduction in ultraperipheral heavy ion collisions at the LHC within the Reggeometric Pomeron approach
• The proton inelastic cross section at ultrahigh energies