It is argued that antiparticles may be interpreted in macroscopic terms without explicitly using the concept of time and its reversal. The appropriate framework is that of nonrelativistic phase space. It is recalled that a quantum version of this approach leads also, alongside the appearance of antiparticles, to the emergence of `internal' quantum numbers identifiable with weak isospin, weak hypercharge and colour, and to the derivation of the Gell-Mann-Nishijima relation, while simultaneously offering a preonless interpretation of the Harari-Shupe rishon model. Furthermore, it is shown that - under the assumption of the additivity of canonical momenta - the approach entails the emergence of string-like structures resembling mesons and baryons, thus providing a different starting point for the discussion of quark unobservability.
Particle--antiparticle asymmetry from charge separation at expanding horizons
ICRANet（国际相对论天体物理中心）；Sapienza University of Rome（罗马大学）；INFN, Sezione di Perugia（意大利国家核物理研究所佩鲁贾分部）；ICTP-AP, University of Chinese Academy of Sciences（中国科学院大学理论物理与应用物理研究中心）
Spin correlation of hyperon-antihyperon systems in $e^+e^-$ annihilation
University of Science and Technology of China（中国科学技术大学）；Anhui Center for fundamental sciences in theoretical physics（安徽基础科学前沿中心）；State Key Laboratory of Particle Detection and Electronics（粒子探测与电子学国家重点实验室）；School of Mechanics and Physics, Anhui University of Science and Technology（安徽理工大学力学与光电学院）
Lepton-Number Violation in Higgs Effective Field Theory: Complete Operator Basis and Type-II Seesaw Matching
School of Physics and Information Technology, Shaanxi Normal University（陕西师范大学物理与信息技术学院）；Center for Theoretical Physics of the Universe, Institute for Basic Science (IBS)（基础科学研究院宇宙理论物理中心）
Leptonic CP Phase Determination from Fisher Information in T2K and NO$ν$A
Institute of High Energy Physics, Chinese Academy of Sciences（中国科学院高能物理研究所）；Kaiping Neutrino Research Center（开平中微子研究中心）；School of Physical Sciences, University of Chinese Academy of Sciences（中国科学院大学物理科学学院）
