The latest of the 'Lepton Photon' symposium, one of the well-established series of meetings in the high-energy physics community, was successfully organized at the South Campus of Sun Yat-sen University, Guangzhou, China, from August 7-12, 2017, where physicists around the world gathered to discuss the latest advancements in the research field.This proceedings volume of the Lepton Photon 2017 collects contributions by the plenary session speakers and the posters' presenters, which cover the latest results in particle physics, nuclear physics, astrophysics, cosmology, and plans for future facilities.

Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7 TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an enhancement of number of pairs of same-sign charged particles with small relative momentum. The dependence of this enhancement on kinematic and topological features of the event is studied.

Bose-Einstein correlations have been measured using samples of proton-proton collisions at 0.9 and 2.36 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The signal is observed in the form of an enhancement of pairs of same-sign charged particles with small relative four-momentum. The size of the correlated particle emission region is seen to increase significantly with the particle multiplicity of the event.

The first measurement of two-pion Bose-Einstein correlations in central Pb-Pb collisions at √sNN=2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC.

Contents: Experiment:Hadron Production in High Energy Collisions of Leptons with Nucleons and Nuclei (N Schmitz)Particle Production in Continuum e+e- Annihilation at High Energy (M Derrick & Abachi)Selected Results on Multihadron Production at ISR Energies (R Campanini)Hadron-Nuclear Interactions (W D Walker & P C Bhat)Diffractive Multiparticle Production (K Goulianos)Bose-Einstein Correlations: From Statistics to Dynamics (W A Zajc)Multihadron Events in Cosmic Rays (T Stanev & G B Yodh)Theory:The Pomeron in QCD (A R White)Problems in Hadronization Physics (B Andersson)The Concept of Inelasticity in High Energy Reactions (G Wilk)Dual Parton Model (A Capella et al.)Application of the Methods of Quantum Optics to Multihadron Production (G N Fowler & R M Weiner)A Unified Physical Picture of Multiparticle Emission in pp and e+e- Collisions (T T Chou & C N Yang)Branching Processes in Multiparticle Production (R C Hwa)Multiparticle Production at High Energy and Superclustering Processes (C C Shih)“Fireball” Models and Statistical Methods in Multiparticle Production Processes (T C Meng)Toward a Statistical Description of Deconfinement Transition (P Carruthers & I Sarcevic) Readership: High energy physicists. Keywords:Hadron Production;High Energy Collisions;Bose-Einstein Correlations;Pomeron;Hadronization Physics