December 17th, 2019

лошадь, диаграмма, Фейнман

Энциклопедия электрослабых радиационных поправок. Антипротоны анфас и в профиль:))

Electroweak Radiative Corrections for Collider Physics: https://arxiv.org/abs/1912.06823

Current particle phenomenology is characterized by the spectacular agreement of the predictions of the Standard Model of particle physics (SM) with all results from collider experiments and by the absence of significant signals of non-standard physics, despite the fact that we know that the SM cannot be the ultimate theory of nature. In this situation, confronting theory and experiment with high precision is a promising direction to look for potential traces of physics beyond the SM. On the theory side, the calculation of radiative corrections of the strong and electroweak interactions is at the heart of this task, a field that has seen tremendous conceptual and technical progress in the last decades. This review aims at a coherent introduction to the field of electroweak corrections and tries to fill gaps in the literature between standard textbook knowledge and the current state of the art. The SM and the machinery for its perturbative evaluation are reviewed in detail, putting particular emphasis on renormalization, on one-loop techniques, on modern amplitude methods and tools, on the separation of infrared singularities in real-emission corrections, on electroweak issues connected with hadronic initial or final states in collisions, and on the issue of unstable particles in quantum field theory together with corresponding practical solutions.
Comments: 191 pages, 20 figures

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Antiproton physics: https://arxiv.org/abs/1912.07385

We review the physics of low-energy antiprotons, and its link with the nuclear forces. This includes: antinucleon scattering on nucleons and nuclei, antiprotonic atoms and antinucleon-nucleon annihilation into mesons.
Comments: 50 pages, to appear in Frontiers in Physics" as part of a series of review articles on "The long-lasting quest for nuclear interactions: the past, the present and the future", ed. L.E. Marcucci and R. Machleidt