Higgs Boson and Supersymmetry: 10th Anniversary of the Discovery of the Higgs Boson
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 1055
Special Issue Editor
Interests: high energy hadronic processes; fundamental problems in atomic and nuclear physics; holographic structure of hadrons; neutrino physics; beyond the Standard Model physics
Special Issue Information
Dear Colleagues,
The discovery of the Higgs particle, 10 years ago, completed the Standard Model (SM) of particle interactions. Its existence was predicted a rather long time ago, around 1964, by several physicists, including Peter Higgs. Its properties have been extensively studied at the CERN Large Hadron Collider, with the result that so far they coincide with what is expected from theoretical expectations. A related entity is the Higgs field, which is assumed to pervade the whole Universe, and which, through its interactions with the known Standard Model particles, provides their mass. Without it, all these particles would be massless. Moreover, without the Higgs particle, a quantum excitation of the Higgs field, some processes involving Standard Model particles would be inconsistent. Therefore, the presence of both the Higgs field and particle can be considered as inevitable within the Standard Model.
The physics of the Higgs field is mostly determined by its potential, which in the Standard Model is assumed to have a minimum value that occurs when the field is not zero. Therefore, the symmetry of the theory is broken by the vacuum—a phenomenon called spontaneous symmetry breaking, or condensate formation.
Nevertheless, the discovery raises several questions. Is the Higgs an elementary or a composite particle? What is the detailed form of its potential? Why is it so light compared to the natural scale of particle physics, the Planck scale?
The purpose of the Special Issue of Symmetry is to look at the current status of our knowledge of the Higgs properties, and to consider novel ideas in order to understand the issues raised by the presence of the Higgs boson. Particular attention will be provided to the two main avenues that are currently being considered for solving some of the difficulties of the SM: compositeness and supersymmetry. The first proposes that some particles of the SM, particularly the Higgs boson, might not be elementary (Technicolor models), and the second relates bosons and fermions into the same framework, which seems a necessary condition to look for a theory that goes beyond the SM.
Prof. Dr. Iván Schmidt
Guest Editor
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